diff --git a/samples/net/openthread/border_router/overlay-ot-rcp-host-wifi-nxp.conf b/samples/net/openthread/border_router/overlay-ot-rcp-host-wifi-nxp.conf
index 0c11751ca97a4..02e7f55fb6f64 100644
--- a/samples/net/openthread/border_router/overlay-ot-rcp-host-wifi-nxp.conf
+++ b/samples/net/openthread/border_router/overlay-ot-rcp-host-wifi-nxp.conf
@@ -44,6 +44,7 @@ CONFIG_OPENTHREAD_ZEPHYR_BORDER_ROUTER_BASE_SERVICE_NAME="NXP-BorderRouter"
 #Table in memory with at least 75 entries.
 #75 entries for conformance, 10 extra for other purposes, if any.
 CONFIG_NET_MAX_MCAST_ROUTES=85
+CONFIG_NET_IF_MCAST_IPV6_ADDR_COUNT=85
 
 # Network diagnostics
 CONFIG_OPENTHREAD_NET_DIAG_VENDOR_NAME="NXP"
diff --git a/samples/net/openthread/border_router/prj.conf b/samples/net/openthread/border_router/prj.conf
index a151250096ad0..8cd6f164af7b6 100644
--- a/samples/net/openthread/border_router/prj.conf
+++ b/samples/net/openthread/border_router/prj.conf
@@ -19,6 +19,7 @@ CONFIG_NET_CONTEXT_RECV_HOPLIMIT=y
 CONFIG_ZVFS_POLL_MAX=15
 CONFIG_NET_SOCKETS_SERVICE_STACK_SIZE=12288
 CONFIG_NET_MAX_CONN=12
+CONFIG_NET_CONNECTION_MANAGER_MONITOR_STACK_SIZE=2048
 
 # printing of scan results puts pressure on queues in new locking
 # design in net_mgmt. So, use a higher timeout for a crowded
@@ -30,9 +31,12 @@ CONFIG_NET_MGMT_EVENT_QUEUE_SIZE=16
 CONFIG_NET_L2_OPENTHREAD=y
 CONFIG_OPENTHREAD_SHELL=y
 CONFIG_OPENTHREAD_THREAD_VERSION_1_4=y
+CONFIG_OPENTHREAD_ZEPHYR_BORDER_ROUTER=y
+
+# Net multicast routing
 CONFIG_NET_MAX_MCAST_ROUTES=10
+CONFIG_NET_MCAST_ROUTE_MLD_REPORTS=y
 CONFIG_NET_IPV6_NBR_CACHE=y
-CONFIG_OPENTHREAD_ZEPHYR_BORDER_ROUTER=y
 
 # Kernel options
 CONFIG_MAIN_STACK_SIZE=5120
@@ -40,8 +44,9 @@ CONFIG_SHELL_STACK_SIZE=4096
 CONFIG_OPENTHREAD_THREAD_STACK_SIZE=8192
 CONFIG_LOG_PROCESS_THREAD_STACK_SIZE=4096
 
-CONFIG_NET_TX_STACK_SIZE=2048
-CONFIG_NET_RX_STACK_SIZE=2048
+CONFIG_NET_TX_STACK_SIZE=4096
+CONFIG_NET_RX_STACK_SIZE=4096
+CONFIG_NET_MGMT_EVENT_STACK_SIZE=8192
 CONFIG_ENTROPY_GENERATOR=y
 CONFIG_TEST_RANDOM_GENERATOR=y
 CONFIG_INIT_STACKS=y
@@ -74,9 +79,12 @@ CONFIG_ZVFS_OPEN_MAX=15
 # DNS resolver required by DNS upstream resolver
 CONFIG_DNS_RESOLVER=y
 CONFIG_DNS_RESOLVER_PACKET_FORWARDING=y
-CONFIG_DNS_RESOLVER_MAX_SERVERS=2
+CONFIG_DNS_RESOLVER_MAX_SERVERS=5
 CONFIG_DNS_NUM_CONCUR_QUERIES=8
 
+CONFIG_SYSTEM_WORKQUEUE_STACK_SIZE=4096
+CONFIG_STACK_SENTINEL=y
+
 # OT Border Router flags
 CONFIG_OPENTHREAD_BACKBONE_ROUTER_MULTICAST_ROUTING=y
 CONFIG_OPENTHREAD_SLAAC=y
@@ -125,3 +133,7 @@ CONFIG_OPENTHREAD_DNS_CLIENT=y
 CONFIG_OPENTHREAD_DNS_CLIENT_OVER_TCP=y
 CONFIG_OPENTHREAD_TCP_ENABLE=y
 CONFIG_OPENTHREAD_NETDIAG_VENDOR_INFO=y
+CONFIG_OPENTHREAD_LINK_METRICS_SUBJECT=y
+CONFIG_OPENTHREAD_LINK_METRICS_MANAGER=y
+CONFIG_OPENTHREAD_LINK_METRICS_INITIATOR=y
+CONFIG_OPENTHREAD_MAC_FILTER=y