diff --git a/samples/subsys/mgmt/mcumgr/smp_svr/overlay-bt.conf b/samples/subsys/mgmt/mcumgr/smp_svr/overlay-bt.conf
index 8942068beb4..90f134979d1 100644
--- a/samples/subsys/mgmt/mcumgr/smp_svr/overlay-bt.conf
+++ b/samples/subsys/mgmt/mcumgr/smp_svr/overlay-bt.conf
@@ -27,6 +27,13 @@ CONFIG_MCUMGR_TRANSPORT_NETBUF_SIZE=2475
 CONFIG_MCUMGR_GRP_OS_MCUMGR_PARAMS=y
 CONFIG_MCUMGR_TRANSPORT_WORKQUEUE_STACK_SIZE=4608
 
+CONFIG_MCUMGR_TRANSPORT_BT_CONN_PARAM_CONTROL_MIN_INT=30
+CONFIG_MCUMGR_TRANSPORT_BT_CONN_PARAM_CONTROL_MAX_INT=50
+CONFIG_MCUMGR_TRANSPORT_BT_CONN_PARAM_CONTROL_TIMEOUT=400
+CONFIG_BT_PERIPHERAL_PREF_MIN_INT=30
+CONFIG_BT_PERIPHERAL_PREF_MAX_INT=50
+CONFIG_BT_PERIPHERAL_PREF_TIMEOUT=400
+
 # Enable the LittleFS file system.
 CONFIG_FILE_SYSTEM=y
 CONFIG_FILE_SYSTEM_LITTLEFS=y