diff --git a/ports/espressif/boards/01space_lcd042_esp32c3/sdkconfig b/ports/espressif/boards/01space_lcd042_esp32c3/sdkconfig
index 3a08db70d5f03..e962866216039 100644
--- a/ports/espressif/boards/01space_lcd042_esp32c3/sdkconfig
+++ b/ports/espressif/boards/01space_lcd042_esp32c3/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="01Space-LCD042-ESP32C3"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/adafruit_esp32s3_camera/sdkconfig b/ports/espressif/boards/adafruit_esp32s3_camera/sdkconfig
index 1bddb7a89fbb7..a12cbe62f1487 100644
--- a/ports/espressif/boards/adafruit_esp32s3_camera/sdkconfig
+++ b/ports/espressif/boards/adafruit_esp32s3_camera/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="espressif-esp32s3"
 # end of LWIP
 
 #
diff --git a/ports/espressif/boards/adafruit_feather_esp32c6_4mbflash_nopsram/sdkconfig b/ports/espressif/boards/adafruit_feather_esp32c6_4mbflash_nopsram/sdkconfig
index 0cc38a499d0dc..e962866216039 100644
--- a/ports/espressif/boards/adafruit_feather_esp32c6_4mbflash_nopsram/sdkconfig
+++ b/ports/espressif/boards/adafruit_feather_esp32c6_4mbflash_nopsram/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="Adafruit-Feather-ESP32C6"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/adafruit_feather_esp32s3_4mbflash_2mbpsram/sdkconfig b/ports/espressif/boards/adafruit_feather_esp32s3_4mbflash_2mbpsram/sdkconfig
index f5ef79768114c..e962866216039 100644
--- a/ports/espressif/boards/adafruit_feather_esp32s3_4mbflash_2mbpsram/sdkconfig
+++ b/ports/espressif/boards/adafruit_feather_esp32s3_4mbflash_2mbpsram/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="espressif-esp32s3"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/adafruit_feather_esp32s3_nopsram/sdkconfig b/ports/espressif/boards/adafruit_feather_esp32s3_nopsram/sdkconfig
index f5ef79768114c..e962866216039 100644
--- a/ports/espressif/boards/adafruit_feather_esp32s3_nopsram/sdkconfig
+++ b/ports/espressif/boards/adafruit_feather_esp32s3_nopsram/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="espressif-esp32s3"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/adafruit_feather_esp32s3_reverse_tft/sdkconfig b/ports/espressif/boards/adafruit_feather_esp32s3_reverse_tft/sdkconfig
index f5ef79768114c..e962866216039 100644
--- a/ports/espressif/boards/adafruit_feather_esp32s3_reverse_tft/sdkconfig
+++ b/ports/espressif/boards/adafruit_feather_esp32s3_reverse_tft/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="espressif-esp32s3"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/adafruit_feather_esp32s3_tft/sdkconfig b/ports/espressif/boards/adafruit_feather_esp32s3_tft/sdkconfig
index f5ef79768114c..e962866216039 100644
--- a/ports/espressif/boards/adafruit_feather_esp32s3_tft/sdkconfig
+++ b/ports/espressif/boards/adafruit_feather_esp32s3_tft/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="espressif-esp32s3"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/adafruit_matrixportal_s3/sdkconfig b/ports/espressif/boards/adafruit_matrixportal_s3/sdkconfig
index db95a623aa926..e962866216039 100644
--- a/ports/espressif/boards/adafruit_matrixportal_s3/sdkconfig
+++ b/ports/espressif/boards/adafruit_matrixportal_s3/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="matrixportal-s3"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/adafruit_metro_esp32s3/sdkconfig b/ports/espressif/boards/adafruit_metro_esp32s3/sdkconfig
index 4b1cfa36412d5..e962866216039 100644
--- a/ports/espressif/boards/adafruit_metro_esp32s3/sdkconfig
+++ b/ports/espressif/boards/adafruit_metro_esp32s3/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="Metro-ESP32S3"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/adafruit_qtpy_esp32c3/sdkconfig b/ports/espressif/boards/adafruit_qtpy_esp32c3/sdkconfig
index aa82df2b813bf..e962866216039 100644
--- a/ports/espressif/boards/adafruit_qtpy_esp32c3/sdkconfig
+++ b/ports/espressif/boards/adafruit_qtpy_esp32c3/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="Adafruit-QTPy-ESP32C3"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/adafruit_qtpy_esp32s3_4mbflash_2mbpsram/sdkconfig b/ports/espressif/boards/adafruit_qtpy_esp32s3_4mbflash_2mbpsram/sdkconfig
index f5ef79768114c..e962866216039 100644
--- a/ports/espressif/boards/adafruit_qtpy_esp32s3_4mbflash_2mbpsram/sdkconfig
+++ b/ports/espressif/boards/adafruit_qtpy_esp32s3_4mbflash_2mbpsram/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="espressif-esp32s3"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/adafruit_qtpy_esp32s3_nopsram/sdkconfig b/ports/espressif/boards/adafruit_qtpy_esp32s3_nopsram/sdkconfig
index f5ef79768114c..e962866216039 100644
--- a/ports/espressif/boards/adafruit_qtpy_esp32s3_nopsram/sdkconfig
+++ b/ports/espressif/boards/adafruit_qtpy_esp32s3_nopsram/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="espressif-esp32s3"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/adafruit_qualia_s3_rgb666/sdkconfig b/ports/espressif/boards/adafruit_qualia_s3_rgb666/sdkconfig
index 8e26f268e76aa..e962866216039 100644
--- a/ports/espressif/boards/adafruit_qualia_s3_rgb666/sdkconfig
+++ b/ports/espressif/boards/adafruit_qualia_s3_rgb666/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="qualia"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/ai_thinker_esp32-c3s-2m/sdkconfig b/ports/espressif/boards/ai_thinker_esp32-c3s-2m/sdkconfig
index 411bc17724ae0..e962866216039 100644
--- a/ports/espressif/boards/ai_thinker_esp32-c3s-2m/sdkconfig
+++ b/ports/espressif/boards/ai_thinker_esp32-c3s-2m/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="AIThinker-ESP32C3S-2M"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/ai_thinker_esp32-c3s/sdkconfig b/ports/espressif/boards/ai_thinker_esp32-c3s/sdkconfig
index 435604eb4b8a6..e962866216039 100644
--- a/ports/espressif/boards/ai_thinker_esp32-c3s/sdkconfig
+++ b/ports/espressif/boards/ai_thinker_esp32-c3s/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="AIThinker-ESP32C3S"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/arduino_nano_esp32s3/sdkconfig b/ports/espressif/boards/arduino_nano_esp32s3/sdkconfig
index f5ef79768114c..e962866216039 100644
--- a/ports/espressif/boards/arduino_nano_esp32s3/sdkconfig
+++ b/ports/espressif/boards/arduino_nano_esp32s3/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="espressif-esp32s3"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/arduino_nano_esp32s3_inverted_statusled/sdkconfig b/ports/espressif/boards/arduino_nano_esp32s3_inverted_statusled/sdkconfig
index b2e5c546b825a..e962866216039 100644
--- a/ports/espressif/boards/arduino_nano_esp32s3_inverted_statusled/sdkconfig
+++ b/ports/espressif/boards/arduino_nano_esp32s3_inverted_statusled/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="nano-esp32"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/artisense_rd00/sdkconfig b/ports/espressif/boards/artisense_rd00/sdkconfig
index 36749a928bd1b..e962866216039 100644
--- a/ports/espressif/boards/artisense_rd00/sdkconfig
+++ b/ports/espressif/boards/artisense_rd00/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="RD00-ESP32S2"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/atmegazero_esp32s2/sdkconfig b/ports/espressif/boards/atmegazero_esp32s2/sdkconfig
index 0748a66c5ca17..e962866216039 100644
--- a/ports/espressif/boards/atmegazero_esp32s2/sdkconfig
+++ b/ports/espressif/boards/atmegazero_esp32s2/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="ATMegaZero-Esp32s2"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/autosportlabs_esp32_can_x2/sdkconfig b/ports/espressif/boards/autosportlabs_esp32_can_x2/sdkconfig
index 30ffa1a82961d..e962866216039 100644
--- a/ports/espressif/boards/autosportlabs_esp32_can_x2/sdkconfig
+++ b/ports/espressif/boards/autosportlabs_esp32_can_x2/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="autosportlabs-esp32-can-x2"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/barduino/sdkconfig b/ports/espressif/boards/barduino/sdkconfig
index f5ef79768114c..e962866216039 100644
--- a/ports/espressif/boards/barduino/sdkconfig
+++ b/ports/espressif/boards/barduino/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="espressif-esp32s3"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/beetle-esp32-c3/sdkconfig b/ports/espressif/boards/beetle-esp32-c3/sdkconfig
index 2b4299082a22b..e962866216039 100644
--- a/ports/espressif/boards/beetle-esp32-c3/sdkconfig
+++ b/ports/espressif/boards/beetle-esp32-c3/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="beetle-esp32-c3"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/bpi_bit_s2/sdkconfig b/ports/espressif/boards/bpi_bit_s2/sdkconfig
index c9b6f75868d83..e962866216039 100644
--- a/ports/espressif/boards/bpi_bit_s2/sdkconfig
+++ b/ports/espressif/boards/bpi_bit_s2/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="BPI-BIT-S2"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/bpi_leaf_s3/sdkconfig b/ports/espressif/boards/bpi_leaf_s3/sdkconfig
index 6b3f2584c7124..e962866216039 100644
--- a/ports/espressif/boards/bpi_leaf_s3/sdkconfig
+++ b/ports/espressif/boards/bpi_leaf_s3/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="BPI-Leaf-S3"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/bpi_picow_s3/sdkconfig b/ports/espressif/boards/bpi_picow_s3/sdkconfig
index 914b077264001..e962866216039 100644
--- a/ports/espressif/boards/bpi_picow_s3/sdkconfig
+++ b/ports/espressif/boards/bpi_picow_s3/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="BPI-PicoW-S3"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/brainboardz_neuron/sdkconfig b/ports/espressif/boards/brainboardz_neuron/sdkconfig
index e553af17769f3..e962866216039 100755
--- a/ports/espressif/boards/brainboardz_neuron/sdkconfig
+++ b/ports/espressif/boards/brainboardz_neuron/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="BrainBoardzNeuron"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/circuitart_zero_s3/sdkconfig b/ports/espressif/boards/circuitart_zero_s3/sdkconfig
index 0e6ef9fd17a6a..e962866216039 100644
--- a/ports/espressif/boards/circuitart_zero_s3/sdkconfig
+++ b/ports/espressif/boards/circuitart_zero_s3/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="CircuitART Zero S3"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/columbia-dsl-sensor/sdkconfig b/ports/espressif/boards/columbia-dsl-sensor/sdkconfig
index 05d2603dfbafb..e962866216039 100644
--- a/ports/espressif/boards/columbia-dsl-sensor/sdkconfig
+++ b/ports/espressif/boards/columbia-dsl-sensor/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="columbia-dsl-sensor"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/crumpspace_crumps2/sdkconfig b/ports/espressif/boards/crumpspace_crumps2/sdkconfig
index e1f568a2d8d25..e962866216039 100644
--- a/ports/espressif/boards/crumpspace_crumps2/sdkconfig
+++ b/ports/espressif/boards/crumpspace_crumps2/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="CrumpS2"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/cytron_maker_feather_aiot_s3/sdkconfig b/ports/espressif/boards/cytron_maker_feather_aiot_s3/sdkconfig
index f5ef79768114c..e962866216039 100644
--- a/ports/espressif/boards/cytron_maker_feather_aiot_s3/sdkconfig
+++ b/ports/espressif/boards/cytron_maker_feather_aiot_s3/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="espressif-esp32s3"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/deneyap_kart_1a_v2/sdkconfig b/ports/espressif/boards/deneyap_kart_1a_v2/sdkconfig
index 2d5e06f98510c..e962866216039 100644
--- a/ports/espressif/boards/deneyap_kart_1a_v2/sdkconfig
+++ b/ports/espressif/boards/deneyap_kart_1a_v2/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="DeneyapKart1A_v2"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/deneyap_kart_g/sdkconfig b/ports/espressif/boards/deneyap_kart_g/sdkconfig
index f239c3140522c..e962866216039 100644
--- a/ports/espressif/boards/deneyap_kart_g/sdkconfig
+++ b/ports/espressif/boards/deneyap_kart_g/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="DeneyapKartG"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/deneyap_mini/sdkconfig b/ports/espressif/boards/deneyap_mini/sdkconfig
index 3bcde1ab9e689..e962866216039 100644
--- a/ports/espressif/boards/deneyap_mini/sdkconfig
+++ b/ports/espressif/boards/deneyap_mini/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="DeneyapMini"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/deneyap_mini_v2/sdkconfig b/ports/espressif/boards/deneyap_mini_v2/sdkconfig
index be30fb4463d91..e962866216039 100644
--- a/ports/espressif/boards/deneyap_mini_v2/sdkconfig
+++ b/ports/espressif/boards/deneyap_mini_v2/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="DeneyapMini_v2"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/es3ink/sdkconfig b/ports/espressif/boards/es3ink/sdkconfig
index b023c59d0357b..e962866216039 100644
--- a/ports/espressif/boards/es3ink/sdkconfig
+++ b/ports/espressif/boards/es3ink/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="es3ink"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/espressif_esp32c3_devkitm_1_n4/sdkconfig b/ports/espressif/boards/espressif_esp32c3_devkitm_1_n4/sdkconfig
index c4def86e69711..e962866216039 100644
--- a/ports/espressif/boards/espressif_esp32c3_devkitm_1_n4/sdkconfig
+++ b/ports/espressif/boards/espressif_esp32c3_devkitm_1_n4/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="ESP32-C3-DevKitM-1"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/espressif_esp32c6_devkitc_1_n8/sdkconfig b/ports/espressif/boards/espressif_esp32c6_devkitc_1_n8/sdkconfig
index 54a5473075653..e962866216039 100644
--- a/ports/espressif/boards/espressif_esp32c6_devkitc_1_n8/sdkconfig
+++ b/ports/espressif/boards/espressif_esp32c6_devkitc_1_n8/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="espressif-esp32c6"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/espressif_esp32c6_devkitm_1_n4/sdkconfig b/ports/espressif/boards/espressif_esp32c6_devkitm_1_n4/sdkconfig
index 30a4bea2cc687..e962866216039 100644
--- a/ports/espressif/boards/espressif_esp32c6_devkitm_1_n4/sdkconfig
+++ b/ports/espressif/boards/espressif_esp32c6_devkitm_1_n4/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="ESP32-C6-DevKitM-1"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/espressif_esp32s2_devkitc_1_n4/sdkconfig b/ports/espressif/boards/espressif_esp32s2_devkitc_1_n4/sdkconfig
index 57f0da698aa1d..e962866216039 100644
--- a/ports/espressif/boards/espressif_esp32s2_devkitc_1_n4/sdkconfig
+++ b/ports/espressif/boards/espressif_esp32s2_devkitc_1_n4/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="espressif-esp32s2"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/espressif_esp32s2_devkitc_1_n4r2/sdkconfig b/ports/espressif/boards/espressif_esp32s2_devkitc_1_n4r2/sdkconfig
index 57f0da698aa1d..e962866216039 100644
--- a/ports/espressif/boards/espressif_esp32s2_devkitc_1_n4r2/sdkconfig
+++ b/ports/espressif/boards/espressif_esp32s2_devkitc_1_n4r2/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="espressif-esp32s2"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/espressif_esp32s2_devkitc_1_n8r2/sdkconfig b/ports/espressif/boards/espressif_esp32s2_devkitc_1_n8r2/sdkconfig
index 57f0da698aa1d..e962866216039 100644
--- a/ports/espressif/boards/espressif_esp32s2_devkitc_1_n8r2/sdkconfig
+++ b/ports/espressif/boards/espressif_esp32s2_devkitc_1_n8r2/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="espressif-esp32s2"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/espressif_esp32s3_box/sdkconfig b/ports/espressif/boards/espressif_esp32s3_box/sdkconfig
index f5ef79768114c..e962866216039 100644
--- a/ports/espressif/boards/espressif_esp32s3_box/sdkconfig
+++ b/ports/espressif/boards/espressif_esp32s3_box/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="espressif-esp32s3"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/espressif_esp32s3_box_lite/sdkconfig b/ports/espressif/boards/espressif_esp32s3_box_lite/sdkconfig
index f5ef79768114c..e962866216039 100644
--- a/ports/espressif/boards/espressif_esp32s3_box_lite/sdkconfig
+++ b/ports/espressif/boards/espressif_esp32s3_box_lite/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="espressif-esp32s3"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/espressif_esp32s3_devkitc_1_n16/sdkconfig b/ports/espressif/boards/espressif_esp32s3_devkitc_1_n16/sdkconfig
index f5ef79768114c..e962866216039 100644
--- a/ports/espressif/boards/espressif_esp32s3_devkitc_1_n16/sdkconfig
+++ b/ports/espressif/boards/espressif_esp32s3_devkitc_1_n16/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="espressif-esp32s3"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/espressif_esp32s3_devkitc_1_n32r8/sdkconfig b/ports/espressif/boards/espressif_esp32s3_devkitc_1_n32r8/sdkconfig
index f5ef79768114c..e962866216039 100644
--- a/ports/espressif/boards/espressif_esp32s3_devkitc_1_n32r8/sdkconfig
+++ b/ports/espressif/boards/espressif_esp32s3_devkitc_1_n32r8/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="espressif-esp32s3"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/espressif_esp32s3_devkitc_1_n8/sdkconfig b/ports/espressif/boards/espressif_esp32s3_devkitc_1_n8/sdkconfig
index f5ef79768114c..e962866216039 100644
--- a/ports/espressif/boards/espressif_esp32s3_devkitc_1_n8/sdkconfig
+++ b/ports/espressif/boards/espressif_esp32s3_devkitc_1_n8/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="espressif-esp32s3"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/espressif_esp32s3_devkitc_1_n8r2/sdkconfig b/ports/espressif/boards/espressif_esp32s3_devkitc_1_n8r2/sdkconfig
index f5ef79768114c..e962866216039 100644
--- a/ports/espressif/boards/espressif_esp32s3_devkitc_1_n8r2/sdkconfig
+++ b/ports/espressif/boards/espressif_esp32s3_devkitc_1_n8r2/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="espressif-esp32s3"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/espressif_esp32s3_devkitc_1_n8r8/sdkconfig b/ports/espressif/boards/espressif_esp32s3_devkitc_1_n8r8/sdkconfig
index f5ef79768114c..e962866216039 100644
--- a/ports/espressif/boards/espressif_esp32s3_devkitc_1_n8r8/sdkconfig
+++ b/ports/espressif/boards/espressif_esp32s3_devkitc_1_n8r8/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="espressif-esp32s3"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/espressif_esp32s3_devkitc_1_n8r8_hacktablet/sdkconfig b/ports/espressif/boards/espressif_esp32s3_devkitc_1_n8r8_hacktablet/sdkconfig
index 46e3a741091a1..e962866216039 100644
--- a/ports/espressif/boards/espressif_esp32s3_devkitc_1_n8r8_hacktablet/sdkconfig
+++ b/ports/espressif/boards/espressif_esp32s3_devkitc_1_n8r8_hacktablet/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="espressif-esp32s3-hacktablet"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/espressif_esp32s3_devkitm_1_n8/sdkconfig b/ports/espressif/boards/espressif_esp32s3_devkitm_1_n8/sdkconfig
index f5ef79768114c..e962866216039 100644
--- a/ports/espressif/boards/espressif_esp32s3_devkitm_1_n8/sdkconfig
+++ b/ports/espressif/boards/espressif_esp32s3_devkitm_1_n8/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="espressif-esp32s3"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/espressif_esp32s3_eye/sdkconfig b/ports/espressif/boards/espressif_esp32s3_eye/sdkconfig
index eebef2db64d21..ac1c535717672 100644
--- a/ports/espressif/boards/espressif_esp32s3_eye/sdkconfig
+++ b/ports/espressif/boards/espressif_esp32s3_eye/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="espressif-esp32s3-eye"
 # end of LWIP
 CONFIG_OV2640_SUPPORT=y
 # end of Component config
diff --git a/ports/espressif/boards/espressif_esp32s3_lcd_ev/sdkconfig b/ports/espressif/boards/espressif_esp32s3_lcd_ev/sdkconfig
index 75153e4202041..e962866216039 100644
--- a/ports/espressif/boards/espressif_esp32s3_lcd_ev/sdkconfig
+++ b/ports/espressif/boards/espressif_esp32s3_lcd_ev/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="espressif-esp32s3-lcd-ev"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/espressif_esp32s3_lcd_ev_v1.5/sdkconfig b/ports/espressif/boards/espressif_esp32s3_lcd_ev_v1.5/sdkconfig
index e3fc638ec0569..e962866216039 100644
--- a/ports/espressif/boards/espressif_esp32s3_lcd_ev_v1.5/sdkconfig
+++ b/ports/espressif/boards/espressif_esp32s3_lcd_ev_v1.5/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="espressif-esp32s3-lcd-ev-v1.5"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/espressif_esp32s3_usb_otg_n8/sdkconfig b/ports/espressif/boards/espressif_esp32s3_usb_otg_n8/sdkconfig
index f5ef79768114c..e962866216039 100644
--- a/ports/espressif/boards/espressif_esp32s3_usb_otg_n8/sdkconfig
+++ b/ports/espressif/boards/espressif_esp32s3_usb_otg_n8/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="espressif-esp32s3"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/espressif_esp8684_devkitc_02_n4/sdkconfig b/ports/espressif/boards/espressif_esp8684_devkitc_02_n4/sdkconfig
index cf803dfc43aa8..f53dd7f8795bc 100644
--- a/ports/espressif/boards/espressif_esp8684_devkitc_02_n4/sdkconfig
+++ b/ports/espressif/boards/espressif_esp8684_devkitc_02_n4/sdkconfig
@@ -32,7 +32,6 @@ CONFIG_ESP_CONSOLE_UART_BAUDRATE=115200
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="espressif-esp8684"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/firebeetle2_esp32s3/sdkconfig b/ports/espressif/boards/firebeetle2_esp32s3/sdkconfig
index 6c5d1f1986610..49798548225eb 100644
--- a/ports/espressif/boards/firebeetle2_esp32s3/sdkconfig
+++ b/ports/espressif/boards/firebeetle2_esp32s3/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="espressif-esp32s3"
 CONFIG_OV2640_SUPPORT=y
 CONFIG_OV7725_SUPPORT=y
 # end of LWIP
diff --git a/ports/espressif/boards/gravitech_cucumber_m/sdkconfig b/ports/espressif/boards/gravitech_cucumber_m/sdkconfig
index ec6db5c72ea18..e962866216039 100644
--- a/ports/espressif/boards/gravitech_cucumber_m/sdkconfig
+++ b/ports/espressif/boards/gravitech_cucumber_m/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="cucumber_m"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/gravitech_cucumber_ms/sdkconfig b/ports/espressif/boards/gravitech_cucumber_ms/sdkconfig
index f3cc39cc6780e..e962866216039 100644
--- a/ports/espressif/boards/gravitech_cucumber_ms/sdkconfig
+++ b/ports/espressif/boards/gravitech_cucumber_ms/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="cucumber_ms"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/gravitech_cucumber_r/sdkconfig b/ports/espressif/boards/gravitech_cucumber_r/sdkconfig
index e817a86205a12..e962866216039 100644
--- a/ports/espressif/boards/gravitech_cucumber_r/sdkconfig
+++ b/ports/espressif/boards/gravitech_cucumber_r/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="cucumber_r"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/gravitech_cucumber_rs/sdkconfig b/ports/espressif/boards/gravitech_cucumber_rs/sdkconfig
index 873eb7207a0f7..e962866216039 100644
--- a/ports/espressif/boards/gravitech_cucumber_rs/sdkconfig
+++ b/ports/espressif/boards/gravitech_cucumber_rs/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="cucumber_rs"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/heltec_esp32s3_wifi_lora_v3/sdkconfig b/ports/espressif/boards/heltec_esp32s3_wifi_lora_v3/sdkconfig
index ab4e9875add9e..a71099850d5ff 100644
--- a/ports/espressif/boards/heltec_esp32s3_wifi_lora_v3/sdkconfig
+++ b/ports/espressif/boards/heltec_esp32s3_wifi_lora_v3/sdkconfig
@@ -8,7 +8,6 @@
 # LWIP
 #
 CONFIG_ESP_PHY_ENABLE_USB=n
-CONFIG_LWIP_LOCAL_HOSTNAME="HELTEC-ESP32S3-V3"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/hiibot_iots2/sdkconfig b/ports/espressif/boards/hiibot_iots2/sdkconfig
index b2b83eb6e6c47..e962866216039 100644
--- a/ports/espressif/boards/hiibot_iots2/sdkconfig
+++ b/ports/espressif/boards/hiibot_iots2/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="HiiBot_IoTs2"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/lilygo_tdeck/sdkconfig b/ports/espressif/boards/lilygo_tdeck/sdkconfig
index 35bfb64a016c8..e962866216039 100644
--- a/ports/espressif/boards/lilygo_tdeck/sdkconfig
+++ b/ports/espressif/boards/lilygo_tdeck/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="T-DECK"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/lilygo_tdisplay_s3/sdkconfig b/ports/espressif/boards/lilygo_tdisplay_s3/sdkconfig
index 7c9743375931c..e962866216039 100644
--- a/ports/espressif/boards/lilygo_tdisplay_s3/sdkconfig
+++ b/ports/espressif/boards/lilygo_tdisplay_s3/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="T-DISPLAY-S3"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/lilygo_tdisplay_s3_pro/sdkconfig b/ports/espressif/boards/lilygo_tdisplay_s3_pro/sdkconfig
index 03805d7f206cd..a12cbe62f1487 100644
--- a/ports/espressif/boards/lilygo_tdisplay_s3_pro/sdkconfig
+++ b/ports/espressif/boards/lilygo_tdisplay_s3_pro/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="T-Display S3 Pro"
 # end of LWIP
 
 #
diff --git a/ports/espressif/boards/lilygo_tembed_esp32s3/sdkconfig b/ports/espressif/boards/lilygo_tembed_esp32s3/sdkconfig
index f5ef79768114c..e962866216039 100644
--- a/ports/espressif/boards/lilygo_tembed_esp32s3/sdkconfig
+++ b/ports/espressif/boards/lilygo_tembed_esp32s3/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="espressif-esp32s3"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/lilygo_ttgo_t-01c3/sdkconfig b/ports/espressif/boards/lilygo_ttgo_t-01c3/sdkconfig
index 54105bd51b394..e962866216039 100644
--- a/ports/espressif/boards/lilygo_ttgo_t-01c3/sdkconfig
+++ b/ports/espressif/boards/lilygo_ttgo_t-01c3/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="LILYGO TTGO T-01C3"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/lilygo_ttgo_t-oi-plus/sdkconfig b/ports/espressif/boards/lilygo_ttgo_t-oi-plus/sdkconfig
index fc0f5c6edd200..e962866216039 100644
--- a/ports/espressif/boards/lilygo_ttgo_t-oi-plus/sdkconfig
+++ b/ports/espressif/boards/lilygo_ttgo_t-oi-plus/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="LILYGO TTGO T-OI PLUS"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/lilygo_ttgo_t8_s2/sdkconfig b/ports/espressif/boards/lilygo_ttgo_t8_s2/sdkconfig
index 23f6593f1b23e..e962866216039 100644
--- a/ports/espressif/boards/lilygo_ttgo_t8_s2/sdkconfig
+++ b/ports/espressif/boards/lilygo_ttgo_t8_s2/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="TTGO-T8-ESP32-S2"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/lilygo_ttgo_t8_s2_st7789/sdkconfig b/ports/espressif/boards/lilygo_ttgo_t8_s2_st7789/sdkconfig
index 23f6593f1b23e..e962866216039 100644
--- a/ports/espressif/boards/lilygo_ttgo_t8_s2_st7789/sdkconfig
+++ b/ports/espressif/boards/lilygo_ttgo_t8_s2_st7789/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="TTGO-T8-ESP32-S2"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/lilygo_ttgo_tdisplay_esp32_16m/sdkconfig b/ports/espressif/boards/lilygo_ttgo_tdisplay_esp32_16m/sdkconfig
index 61beea449b11d..e962866216039 100644
--- a/ports/espressif/boards/lilygo_ttgo_tdisplay_esp32_16m/sdkconfig
+++ b/ports/espressif/boards/lilygo_ttgo_tdisplay_esp32_16m/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="TTGO-TDISPLAY"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/lilygo_ttgo_tdisplay_esp32_4m/sdkconfig b/ports/espressif/boards/lilygo_ttgo_tdisplay_esp32_4m/sdkconfig
index 61beea449b11d..e962866216039 100644
--- a/ports/espressif/boards/lilygo_ttgo_tdisplay_esp32_4m/sdkconfig
+++ b/ports/espressif/boards/lilygo_ttgo_tdisplay_esp32_4m/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="TTGO-TDISPLAY"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/lilygo_twatch_s3/sdkconfig b/ports/espressif/boards/lilygo_twatch_s3/sdkconfig
index 08b2b772c5cd7..e962866216039 100644
--- a/ports/espressif/boards/lilygo_twatch_s3/sdkconfig
+++ b/ports/espressif/boards/lilygo_twatch_s3/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="t-watch-s3"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/lolin_c3_mini/sdkconfig b/ports/espressif/boards/lolin_c3_mini/sdkconfig
index 932a4a2cbd040..e962866216039 100644
--- a/ports/espressif/boards/lolin_c3_mini/sdkconfig
+++ b/ports/espressif/boards/lolin_c3_mini/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="lolin-c3-mini"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/lolin_c3_pico/sdkconfig b/ports/espressif/boards/lolin_c3_pico/sdkconfig
index ba2885933e792..3d0800e10d9ac 100644
--- a/ports/espressif/boards/lolin_c3_pico/sdkconfig
+++ b/ports/espressif/boards/lolin_c3_pico/sdkconfig
@@ -8,7 +8,6 @@
 # LWIP
 #
 # CONFIG_LWIP_IPV6 is not set
-CONFIG_LWIP_LOCAL_HOSTNAME="lolin-c3-pico"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/lolin_s2_mini/sdkconfig b/ports/espressif/boards/lolin_s2_mini/sdkconfig
index ac239ca333e6b..e962866216039 100644
--- a/ports/espressif/boards/lolin_s2_mini/sdkconfig
+++ b/ports/espressif/boards/lolin_s2_mini/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="LS2Mini"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/lolin_s2_pico/sdkconfig b/ports/espressif/boards/lolin_s2_pico/sdkconfig
index c2238c68143aa..e962866216039 100644
--- a/ports/espressif/boards/lolin_s2_pico/sdkconfig
+++ b/ports/espressif/boards/lolin_s2_pico/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="Lolin-S2Pico"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/lolin_s3/sdkconfig b/ports/espressif/boards/lolin_s3/sdkconfig
index b90e3fa57edab..e962866216039 100644
--- a/ports/espressif/boards/lolin_s3/sdkconfig
+++ b/ports/espressif/boards/lolin_s3/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="LOLIN-S3"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/lolin_s3_mini/sdkconfig b/ports/espressif/boards/lolin_s3_mini/sdkconfig
index 36be9c760eddd..e962866216039 100644
--- a/ports/espressif/boards/lolin_s3_mini/sdkconfig
+++ b/ports/espressif/boards/lolin_s3_mini/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="LOLIN-S3-MINI"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/lolin_s3_pro/sdkconfig b/ports/espressif/boards/lolin_s3_pro/sdkconfig
index 4dfe8da3fb06f..e962866216039 100755
--- a/ports/espressif/boards/lolin_s3_pro/sdkconfig
+++ b/ports/espressif/boards/lolin_s3_pro/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="LOLIN-S3-PRO"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/luatos_core_esp32c3/sdkconfig b/ports/espressif/boards/luatos_core_esp32c3/sdkconfig
index 7d94db0b5b130..e962866216039 100644
--- a/ports/espressif/boards/luatos_core_esp32c3/sdkconfig
+++ b/ports/espressif/boards/luatos_core_esp32c3/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="luatos-core-esp32c3"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/luatos_core_esp32c3_ch343/sdkconfig b/ports/espressif/boards/luatos_core_esp32c3_ch343/sdkconfig
index 7d94db0b5b130..e962866216039 100644
--- a/ports/espressif/boards/luatos_core_esp32c3_ch343/sdkconfig
+++ b/ports/espressif/boards/luatos_core_esp32c3_ch343/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="luatos-core-esp32c3"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/m5stack_atom_echo/sdkconfig b/ports/espressif/boards/m5stack_atom_echo/sdkconfig
index 861e4ebad3970..e962866216039 100644
--- a/ports/espressif/boards/m5stack_atom_echo/sdkconfig
+++ b/ports/espressif/boards/m5stack_atom_echo/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="M5StaskAtomEcho"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/m5stack_atom_lite/sdkconfig b/ports/espressif/boards/m5stack_atom_lite/sdkconfig
index eaaf716a15ef3..e962866216039 100644
--- a/ports/espressif/boards/m5stack_atom_lite/sdkconfig
+++ b/ports/espressif/boards/m5stack_atom_lite/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="M5StaskAtomLite"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/m5stack_atom_matrix/sdkconfig b/ports/espressif/boards/m5stack_atom_matrix/sdkconfig
index 730f17de0e196..e962866216039 100644
--- a/ports/espressif/boards/m5stack_atom_matrix/sdkconfig
+++ b/ports/espressif/boards/m5stack_atom_matrix/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="M5StaskAtomMatrix"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/m5stack_atom_u/sdkconfig b/ports/espressif/boards/m5stack_atom_u/sdkconfig
index 06d0f01693704..e962866216039 100644
--- a/ports/espressif/boards/m5stack_atom_u/sdkconfig
+++ b/ports/espressif/boards/m5stack_atom_u/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="M5StaskAtomU"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/m5stack_atoms3/sdkconfig b/ports/espressif/boards/m5stack_atoms3/sdkconfig
index f5ef79768114c..e962866216039 100644
--- a/ports/espressif/boards/m5stack_atoms3/sdkconfig
+++ b/ports/espressif/boards/m5stack_atoms3/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="espressif-esp32s3"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/m5stack_atoms3_lite/sdkconfig b/ports/espressif/boards/m5stack_atoms3_lite/sdkconfig
index f5ef79768114c..e962866216039 100644
--- a/ports/espressif/boards/m5stack_atoms3_lite/sdkconfig
+++ b/ports/espressif/boards/m5stack_atoms3_lite/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="espressif-esp32s3"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/m5stack_atoms3u/sdkconfig b/ports/espressif/boards/m5stack_atoms3u/sdkconfig
index f5ef79768114c..e962866216039 100644
--- a/ports/espressif/boards/m5stack_atoms3u/sdkconfig
+++ b/ports/espressif/boards/m5stack_atoms3u/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="espressif-esp32s3"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/m5stack_cardputer/sdkconfig b/ports/espressif/boards/m5stack_cardputer/sdkconfig
index b48116f764dc6..e962866216039 100644
--- a/ports/espressif/boards/m5stack_cardputer/sdkconfig
+++ b/ports/espressif/boards/m5stack_cardputer/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="m5stack-cardputer"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/m5stack_core2/sdkconfig b/ports/espressif/boards/m5stack_core2/sdkconfig
index c8ac5f43acf95..116258b906bf4 100644
--- a/ports/espressif/boards/m5stack_core2/sdkconfig
+++ b/ports/espressif/boards/m5stack_core2/sdkconfig
@@ -29,7 +29,6 @@ CONFIG_ESP_REV_MIN_FULL=300
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="M5StaskCore2"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/m5stack_core_basic/sdkconfig b/ports/espressif/boards/m5stack_core_basic/sdkconfig
index 5b7ecf8709758..116258b906bf4 100644
--- a/ports/espressif/boards/m5stack_core_basic/sdkconfig
+++ b/ports/espressif/boards/m5stack_core_basic/sdkconfig
@@ -29,7 +29,6 @@ CONFIG_ESP_REV_MIN_FULL=300
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="M5StaskCoreBasic"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/m5stack_core_fire/sdkconfig b/ports/espressif/boards/m5stack_core_fire/sdkconfig
index 0e7b9709383c5..116258b906bf4 100644
--- a/ports/espressif/boards/m5stack_core_fire/sdkconfig
+++ b/ports/espressif/boards/m5stack_core_fire/sdkconfig
@@ -29,7 +29,6 @@ CONFIG_ESP_REV_MIN_FULL=300
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="M5StaskCoreFire"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/m5stack_cores3/sdkconfig b/ports/espressif/boards/m5stack_cores3/sdkconfig
index 2eb2f0a850b32..7c3c05764ba7f 100644
--- a/ports/espressif/boards/m5stack_cores3/sdkconfig
+++ b/ports/espressif/boards/m5stack_cores3/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="m5stack-cores3"
 # end of LWIP
 
 #
diff --git a/ports/espressif/boards/m5stack_dial/sdkconfig b/ports/espressif/boards/m5stack_dial/sdkconfig
index 2938bb3bfa7f9..e962866216039 100644
--- a/ports/espressif/boards/m5stack_dial/sdkconfig
+++ b/ports/espressif/boards/m5stack_dial/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="m5stack-dial"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/m5stack_m5paper/sdkconfig b/ports/espressif/boards/m5stack_m5paper/sdkconfig
index fbf94f27494a4..116258b906bf4 100644
--- a/ports/espressif/boards/m5stack_m5paper/sdkconfig
+++ b/ports/espressif/boards/m5stack_m5paper/sdkconfig
@@ -29,7 +29,6 @@ CONFIG_ESP_REV_MIN_FULL=300
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="M5Paper"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/m5stack_stamp_c3/sdkconfig b/ports/espressif/boards/m5stack_stamp_c3/sdkconfig
index 87330ec13bd68..e962866216039 100644
--- a/ports/espressif/boards/m5stack_stamp_c3/sdkconfig
+++ b/ports/espressif/boards/m5stack_stamp_c3/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="m5stack-stamp-c3"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/m5stack_stick_c/sdkconfig b/ports/espressif/boards/m5stack_stick_c/sdkconfig
index 2e72fdb21633b..e962866216039 100644
--- a/ports/espressif/boards/m5stack_stick_c/sdkconfig
+++ b/ports/espressif/boards/m5stack_stick_c/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="M5StaskStickC"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/m5stack_stick_c_plus/sdkconfig b/ports/espressif/boards/m5stack_stick_c_plus/sdkconfig
index 54f50db25c3ca..e962866216039 100644
--- a/ports/espressif/boards/m5stack_stick_c_plus/sdkconfig
+++ b/ports/espressif/boards/m5stack_stick_c_plus/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="M5StaskStickCPlus"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/m5stack_timer_camera_x/sdkconfig b/ports/espressif/boards/m5stack_timer_camera_x/sdkconfig
index a600e00b31aac..116258b906bf4 100644
--- a/ports/espressif/boards/m5stack_timer_camera_x/sdkconfig
+++ b/ports/espressif/boards/m5stack_timer_camera_x/sdkconfig
@@ -29,7 +29,6 @@ CONFIG_ESP_REV_MIN_FULL=300
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="M5StackTimerX"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/magiclick_s3_n4r2/sdkconfig b/ports/espressif/boards/magiclick_s3_n4r2/sdkconfig
index 3e9b8e2f17375..122e6f9024690 100644
--- a/ports/espressif/boards/magiclick_s3_n4r2/sdkconfig
+++ b/ports/espressif/boards/magiclick_s3_n4r2/sdkconfig
@@ -8,7 +8,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="MagiClick-ESP32S3"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/maker_badge/sdkconfig b/ports/espressif/boards/maker_badge/sdkconfig
index d62227df74f46..e962866216039 100644
--- a/ports/espressif/boards/maker_badge/sdkconfig
+++ b/ports/espressif/boards/maker_badge/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="Maker_badge"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/makerfabs_tft7/sdkconfig b/ports/espressif/boards/makerfabs_tft7/sdkconfig
index 5853b29ae94ed..e962866216039 100644
--- a/ports/espressif/boards/makerfabs_tft7/sdkconfig
+++ b/ports/espressif/boards/makerfabs_tft7/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="matouch-tft"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/makergo_esp32c3_supermini/sdkconfig b/ports/espressif/boards/makergo_esp32c3_supermini/sdkconfig
index dc7f10a362f92..e962866216039 100644
--- a/ports/espressif/boards/makergo_esp32c3_supermini/sdkconfig
+++ b/ports/espressif/boards/makergo_esp32c3_supermini/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="makergo-esp32c3-supermini"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/microdev_micro_c3/sdkconfig b/ports/espressif/boards/microdev_micro_c3/sdkconfig
index 9b13279bd385e..e962866216039 100644
--- a/ports/espressif/boards/microdev_micro_c3/sdkconfig
+++ b/ports/espressif/boards/microdev_micro_c3/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="MicroDev-microC3"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/microdev_micro_s2/sdkconfig b/ports/espressif/boards/microdev_micro_s2/sdkconfig
index f6158eac3ecc1..e962866216039 100644
--- a/ports/espressif/boards/microdev_micro_s2/sdkconfig
+++ b/ports/espressif/boards/microdev_micro_s2/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="MicroDev-microS2"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/morpheans_morphesp-240/sdkconfig b/ports/espressif/boards/morpheans_morphesp-240/sdkconfig
index b0a838eacc8b0..e962866216039 100644
--- a/ports/espressif/boards/morpheans_morphesp-240/sdkconfig
+++ b/ports/espressif/boards/morpheans_morphesp-240/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="MORPHESP-240"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/nodemcu_esp32c2/sdkconfig b/ports/espressif/boards/nodemcu_esp32c2/sdkconfig
index ed7abbdd59b03..f53dd7f8795bc 100644
--- a/ports/espressif/boards/nodemcu_esp32c2/sdkconfig
+++ b/ports/espressif/boards/nodemcu_esp32c2/sdkconfig
@@ -32,7 +32,6 @@ CONFIG_ESP_CONSOLE_UART_BAUDRATE=115200
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="nodemcu-esp32c2"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/odt_pixelwing_esp32_s2/sdkconfig b/ports/espressif/boards/odt_pixelwing_esp32_s2/sdkconfig
index 3017a9532f610..e962866216039 100644
--- a/ports/espressif/boards/odt_pixelwing_esp32_s2/sdkconfig
+++ b/ports/espressif/boards/odt_pixelwing_esp32_s2/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="PixelWing-ESP32S2"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/seeed_xiao_esp32_s3_sense/sdkconfig b/ports/espressif/boards/seeed_xiao_esp32_s3_sense/sdkconfig
index 3023ed221c351..919f4d9f345ff 100644
--- a/ports/espressif/boards/seeed_xiao_esp32_s3_sense/sdkconfig
+++ b/ports/espressif/boards/seeed_xiao_esp32_s3_sense/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="espressif-esp32s3"
 # end of LWIP
 # Camera configuration
 #
diff --git a/ports/espressif/boards/seeed_xiao_esp32c3/sdkconfig b/ports/espressif/boards/seeed_xiao_esp32c3/sdkconfig
index a593f1d173688..e962866216039 100644
--- a/ports/espressif/boards/seeed_xiao_esp32c3/sdkconfig
+++ b/ports/espressif/boards/seeed_xiao_esp32c3/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="seeed-xiao-esp32c3"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/seeed_xiao_esp32c6/sdkconfig b/ports/espressif/boards/seeed_xiao_esp32c6/sdkconfig
index a69b0b6c770bc..e962866216039 100644
--- a/ports/espressif/boards/seeed_xiao_esp32c6/sdkconfig
+++ b/ports/espressif/boards/seeed_xiao_esp32c6/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="seeed-xiao-esp32c6"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/sensebox_mcu_esp32s2/sdkconfig b/ports/espressif/boards/sensebox_mcu_esp32s2/sdkconfig
index d8608c527c066..e962866216039 100644
--- a/ports/espressif/boards/sensebox_mcu_esp32s2/sdkconfig
+++ b/ports/espressif/boards/sensebox_mcu_esp32s2/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="senseBox MCU-S2 ESP32S2"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/smartbeedesigns_bee_data_logger/sdkconfig b/ports/espressif/boards/smartbeedesigns_bee_data_logger/sdkconfig
index deb1b88d7cac4..e962866216039 100644
--- a/ports/espressif/boards/smartbeedesigns_bee_data_logger/sdkconfig
+++ b/ports/espressif/boards/smartbeedesigns_bee_data_logger/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="smartbeedesigns_bee_data_logger"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/smartbeedesigns_bee_motion_s3/sdkconfig b/ports/espressif/boards/smartbeedesigns_bee_motion_s3/sdkconfig
index fe95b60d4c81f..e962866216039 100644
--- a/ports/espressif/boards/smartbeedesigns_bee_motion_s3/sdkconfig
+++ b/ports/espressif/boards/smartbeedesigns_bee_motion_s3/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="smartbeedesigns_bee_motion_s3"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/smartbeedesigns_bee_s3/sdkconfig b/ports/espressif/boards/smartbeedesigns_bee_s3/sdkconfig
index 2c7a057567fa8..e962866216039 100644
--- a/ports/espressif/boards/smartbeedesigns_bee_s3/sdkconfig
+++ b/ports/espressif/boards/smartbeedesigns_bee_s3/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="smartbeedesigns_bee_s3"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/spotpear_esp32c3_lcd_1_44/sdkconfig b/ports/espressif/boards/spotpear_esp32c3_lcd_1_44/sdkconfig
index f3f2d53d3b869..e962866216039 100644
--- a/ports/espressif/boards/spotpear_esp32c3_lcd_1_44/sdkconfig
+++ b/ports/espressif/boards/spotpear_esp32c3_lcd_1_44/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="spotpear-esp32c3-lcd-1-44"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/sqfmi_watchy/sdkconfig b/ports/espressif/boards/sqfmi_watchy/sdkconfig
index 0eb5e8d4cb13e..7d6572eeeee7d 100644
--- a/ports/espressif/boards/sqfmi_watchy/sdkconfig
+++ b/ports/espressif/boards/sqfmi_watchy/sdkconfig
@@ -1,5 +1,4 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="Watchy"
 # end of LWIP
diff --git a/ports/espressif/boards/sunton_esp32_2424S012/sdkconfig b/ports/espressif/boards/sunton_esp32_2424S012/sdkconfig
index 5b7c8255a9763..e962866216039 100644
--- a/ports/espressif/boards/sunton_esp32_2424S012/sdkconfig
+++ b/ports/espressif/boards/sunton_esp32_2424S012/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="sunton-esp32-2424S012"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/sunton_esp32_8048S070/sdkconfig b/ports/espressif/boards/sunton_esp32_8048S070/sdkconfig
index 61e94a741ffd1..e962866216039 100644
--- a/ports/espressif/boards/sunton_esp32_8048S070/sdkconfig
+++ b/ports/espressif/boards/sunton_esp32_8048S070/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="sunton-esp32-8048S070"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/thingpulse_pendrive_s3/sdkconfig b/ports/espressif/boards/thingpulse_pendrive_s3/sdkconfig
index f5ef79768114c..e962866216039 100644
--- a/ports/espressif/boards/thingpulse_pendrive_s3/sdkconfig
+++ b/ports/espressif/boards/thingpulse_pendrive_s3/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="espressif-esp32s3"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/unexpectedmaker_bling/sdkconfig b/ports/espressif/boards/unexpectedmaker_bling/sdkconfig
index 8e693ad1cb4d2..e962866216039 100644
--- a/ports/espressif/boards/unexpectedmaker_bling/sdkconfig
+++ b/ports/espressif/boards/unexpectedmaker_bling/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="UMBling"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/unexpectedmaker_blizzard_s3/sdkconfig b/ports/espressif/boards/unexpectedmaker_blizzard_s3/sdkconfig
index eea8c00b59b9d..e962866216039 100644
--- a/ports/espressif/boards/unexpectedmaker_blizzard_s3/sdkconfig
+++ b/ports/espressif/boards/unexpectedmaker_blizzard_s3/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="UMBlizzardS3"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/unexpectedmaker_feathers2/sdkconfig b/ports/espressif/boards/unexpectedmaker_feathers2/sdkconfig
index a1e5e03b76922..e962866216039 100644
--- a/ports/espressif/boards/unexpectedmaker_feathers2/sdkconfig
+++ b/ports/espressif/boards/unexpectedmaker_feathers2/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="UMFeatherS2"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/unexpectedmaker_feathers2_neo/sdkconfig b/ports/espressif/boards/unexpectedmaker_feathers2_neo/sdkconfig
index cc781c9a3dda4..e962866216039 100644
--- a/ports/espressif/boards/unexpectedmaker_feathers2_neo/sdkconfig
+++ b/ports/espressif/boards/unexpectedmaker_feathers2_neo/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="UMFeatherS2Neo"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/unexpectedmaker_feathers2_prerelease/sdkconfig b/ports/espressif/boards/unexpectedmaker_feathers2_prerelease/sdkconfig
index a1e5e03b76922..e962866216039 100644
--- a/ports/espressif/boards/unexpectedmaker_feathers2_prerelease/sdkconfig
+++ b/ports/espressif/boards/unexpectedmaker_feathers2_prerelease/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="UMFeatherS2"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/unexpectedmaker_feathers3/sdkconfig b/ports/espressif/boards/unexpectedmaker_feathers3/sdkconfig
index 3ccd3175c69d6..e962866216039 100644
--- a/ports/espressif/boards/unexpectedmaker_feathers3/sdkconfig
+++ b/ports/espressif/boards/unexpectedmaker_feathers3/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="UMFeatherS3"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/unexpectedmaker_feathers3_neo/sdkconfig b/ports/espressif/boards/unexpectedmaker_feathers3_neo/sdkconfig
index df8f15b54391c..e962866216039 100644
--- a/ports/espressif/boards/unexpectedmaker_feathers3_neo/sdkconfig
+++ b/ports/espressif/boards/unexpectedmaker_feathers3_neo/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="UMFeatherS3 Neo"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/unexpectedmaker_nanos3/sdkconfig b/ports/espressif/boards/unexpectedmaker_nanos3/sdkconfig
index 815f002d38295..e962866216039 100644
--- a/ports/espressif/boards/unexpectedmaker_nanos3/sdkconfig
+++ b/ports/espressif/boards/unexpectedmaker_nanos3/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="UMNanoS3"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/unexpectedmaker_omgs3/sdkconfig b/ports/espressif/boards/unexpectedmaker_omgs3/sdkconfig
index 9de28080ff385..e962866216039 100644
--- a/ports/espressif/boards/unexpectedmaker_omgs3/sdkconfig
+++ b/ports/espressif/boards/unexpectedmaker_omgs3/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="UMOMGS3"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/unexpectedmaker_pros3/sdkconfig b/ports/espressif/boards/unexpectedmaker_pros3/sdkconfig
index 21b91a2199af6..e962866216039 100644
--- a/ports/espressif/boards/unexpectedmaker_pros3/sdkconfig
+++ b/ports/espressif/boards/unexpectedmaker_pros3/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="UMProS3"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/unexpectedmaker_rgbtouch_mini/sdkconfig b/ports/espressif/boards/unexpectedmaker_rgbtouch_mini/sdkconfig
index 8eae792a58381..e962866216039 100644
--- a/ports/espressif/boards/unexpectedmaker_rgbtouch_mini/sdkconfig
+++ b/ports/espressif/boards/unexpectedmaker_rgbtouch_mini/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="UMRGBT"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/unexpectedmaker_tinyc6/sdkconfig b/ports/espressif/boards/unexpectedmaker_tinyc6/sdkconfig
index c989bb78dc71a..e962866216039 100644
--- a/ports/espressif/boards/unexpectedmaker_tinyc6/sdkconfig
+++ b/ports/espressif/boards/unexpectedmaker_tinyc6/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="UMTinyC6"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/unexpectedmaker_tinys2/sdkconfig b/ports/espressif/boards/unexpectedmaker_tinys2/sdkconfig
index 647e33d8f5a9c..e962866216039 100644
--- a/ports/espressif/boards/unexpectedmaker_tinys2/sdkconfig
+++ b/ports/espressif/boards/unexpectedmaker_tinys2/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="UMTinyS2"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/unexpectedmaker_tinys3/sdkconfig b/ports/espressif/boards/unexpectedmaker_tinys3/sdkconfig
index d08f76926e0de..e962866216039 100644
--- a/ports/espressif/boards/unexpectedmaker_tinys3/sdkconfig
+++ b/ports/espressif/boards/unexpectedmaker_tinys3/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="UMTinyS3"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/unexpectedmaker_tinywatch_s3/sdkconfig b/ports/espressif/boards/unexpectedmaker_tinywatch_s3/sdkconfig
index 12b5605f4e5d9..e962866216039 100644
--- a/ports/espressif/boards/unexpectedmaker_tinywatch_s3/sdkconfig
+++ b/ports/espressif/boards/unexpectedmaker_tinywatch_s3/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="UMTinyWATCHS3"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/vidi_x/sdkconfig b/ports/espressif/boards/vidi_x/sdkconfig
index bdd999b4fc91c..e962866216039 100644
--- a/ports/espressif/boards/vidi_x/sdkconfig
+++ b/ports/espressif/boards/vidi_x/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="vidi-x"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/waveshare_esp32_s2_pico_lcd/sdkconfig b/ports/espressif/boards/waveshare_esp32_s2_pico_lcd/sdkconfig
index 7c86f9f8e37a3..e962866216039 100644
--- a/ports/espressif/boards/waveshare_esp32_s2_pico_lcd/sdkconfig
+++ b/ports/espressif/boards/waveshare_esp32_s2_pico_lcd/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="waveshare"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/waveshare_esp32_s3_geek/sdkconfig b/ports/espressif/boards/waveshare_esp32_s3_geek/sdkconfig
index f5ef79768114c..e962866216039 100644
--- a/ports/espressif/boards/waveshare_esp32_s3_geek/sdkconfig
+++ b/ports/espressif/boards/waveshare_esp32_s3_geek/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="espressif-esp32s3"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/waveshare_esp32_s3_lcd_1_28/sdkconfig b/ports/espressif/boards/waveshare_esp32_s3_lcd_1_28/sdkconfig
index bcfb4d48ffef5..e962866216039 100644
--- a/ports/espressif/boards/waveshare_esp32_s3_lcd_1_28/sdkconfig
+++ b/ports/espressif/boards/waveshare_esp32_s3_lcd_1_28/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="waveshare-esp32-s3-lcd-1-28"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/waveshare_esp32_s3_pico/sdkconfig b/ports/espressif/boards/waveshare_esp32_s3_pico/sdkconfig
index f5ef79768114c..e962866216039 100644
--- a/ports/espressif/boards/waveshare_esp32_s3_pico/sdkconfig
+++ b/ports/espressif/boards/waveshare_esp32_s3_pico/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="espressif-esp32s3"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/waveshare_esp32_s3_tiny/sdkconfig b/ports/espressif/boards/waveshare_esp32_s3_tiny/sdkconfig
index 19f833ad74cea..3d0800e10d9ac 100644
--- a/ports/espressif/boards/waveshare_esp32_s3_tiny/sdkconfig
+++ b/ports/espressif/boards/waveshare_esp32_s3_tiny/sdkconfig
@@ -8,7 +8,6 @@
 # LWIP
 #
 # CONFIG_LWIP_IPV6 is not set
-CONFIG_LWIP_LOCAL_HOSTNAME="waveshare-esp32-s3-tiny"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/waveshare_esp32_s3_zero/sdkconfig b/ports/espressif/boards/waveshare_esp32_s3_zero/sdkconfig
index 608f7e6a11cdd..e962866216039 100644
--- a/ports/espressif/boards/waveshare_esp32_s3_zero/sdkconfig
+++ b/ports/espressif/boards/waveshare_esp32_s3_zero/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="ESP32-S3-Zero"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/waveshare_esp32s2_pico/sdkconfig b/ports/espressif/boards/waveshare_esp32s2_pico/sdkconfig
index 7c86f9f8e37a3..e962866216039 100644
--- a/ports/espressif/boards/waveshare_esp32s2_pico/sdkconfig
+++ b/ports/espressif/boards/waveshare_esp32s2_pico/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="waveshare"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/weact_esp32c6_n4/sdkconfig b/ports/espressif/boards/weact_esp32c6_n4/sdkconfig
index 63084f9368da1..e962866216039 100644
--- a/ports/espressif/boards/weact_esp32c6_n4/sdkconfig
+++ b/ports/espressif/boards/weact_esp32c6_n4/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="WEACT-ESP32-C6"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/weact_esp32c6_n8/sdkconfig b/ports/espressif/boards/weact_esp32c6_n8/sdkconfig
index 63084f9368da1..e962866216039 100644
--- a/ports/espressif/boards/weact_esp32c6_n8/sdkconfig
+++ b/ports/espressif/boards/weact_esp32c6_n8/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="WEACT-ESP32-C6"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/wemos_lolin32_lite/sdkconfig b/ports/espressif/boards/wemos_lolin32_lite/sdkconfig
index 72be49f97e8cf..e962866216039 100644
--- a/ports/espressif/boards/wemos_lolin32_lite/sdkconfig
+++ b/ports/espressif/boards/wemos_lolin32_lite/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="LOLIN32Lite"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/yd_esp32_s3_n16r8/sdkconfig b/ports/espressif/boards/yd_esp32_s3_n16r8/sdkconfig
index f5ef79768114c..e962866216039 100644
--- a/ports/espressif/boards/yd_esp32_s3_n16r8/sdkconfig
+++ b/ports/espressif/boards/yd_esp32_s3_n16r8/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="espressif-esp32s3"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/boards/yd_esp32_s3_n8r8/sdkconfig b/ports/espressif/boards/yd_esp32_s3_n8r8/sdkconfig
index f5ef79768114c..e962866216039 100644
--- a/ports/espressif/boards/yd_esp32_s3_n8r8/sdkconfig
+++ b/ports/espressif/boards/yd_esp32_s3_n8r8/sdkconfig
@@ -7,7 +7,6 @@
 #
 # LWIP
 #
-CONFIG_LWIP_LOCAL_HOSTNAME="espressif-esp32s3"
 # end of LWIP
 
 # end of Component config
diff --git a/ports/espressif/common-hal/wifi/__init__.c b/ports/espressif/common-hal/wifi/__init__.c
index c2a63ceede72a..4d8c74245e67a 100644
--- a/ports/espressif/common-hal/wifi/__init__.c
+++ b/ports/espressif/common-hal/wifi/__init__.c
@@ -16,6 +16,8 @@
 #include "py/gc.h"
 #include "py/mpstate.h"
 #include "py/runtime.h"
+#include "py/objstr.h"
+#include "py/objint.h"
 
 #include "components/esp_wifi/include/esp_wifi.h"
 
@@ -197,6 +199,13 @@ void common_hal_wifi_init(bool user_initiated) {
         ESP_LOGE(TAG, "WiFi error code: %x", result);
         return;
     }
+    // set the default lwip_local_hostname
+    char cpy_default_hostname[80];
+    uint8_t mac[6];
+    esp_wifi_get_mac(ESP_IF_WIFI_STA, mac);
+    sprintf(cpy_default_hostname, "cpy_%s_%x", CIRCUITPY_BOARD_ID, (unsigned int)mac);
+    const char *default_lwip_local_hostname = cpy_default_hostname;
+    ESP_ERROR_CHECK(esp_netif_set_hostname(self->netif, default_lwip_local_hostname));
     // set station mode to avoid the default SoftAP
     common_hal_wifi_radio_start_station(self);
     // start wifi