diff --git a/ports/esp32/boards/sdkconfig.base b/ports/esp32/boards/sdkconfig.base
index 2a7c9a1c5b8c..eefa8286f696 100644
--- a/ports/esp32/boards/sdkconfig.base
+++ b/ports/esp32/boards/sdkconfig.base
@@ -51,10 +51,11 @@ CONFIG_FREERTOS_THREAD_LOCAL_STORAGE_POINTERS=2
 CONFIG_FREERTOS_SUPPORT_STATIC_ALLOCATION=y
 CONFIG_FREERTOS_ENABLE_STATIC_TASK_CLEAN_UP=y
 
-# UDP
+# LWIP
 CONFIG_LWIP_PPP_SUPPORT=y
 CONFIG_LWIP_PPP_PAP_SUPPORT=y
 CONFIG_LWIP_PPP_CHAP_SUPPORT=y
+CONFIG_LWIP_TCP_MSL=10000
 
 # SSL
 # Use 4kiB output buffer instead of default 16kiB