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-rw-r--r--ext/lwipopts.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/ext/lwipopts.h b/ext/lwipopts.h
index e7b78a8f..597fee50 100644
--- a/ext/lwipopts.h
+++ b/ext/lwipopts.h
@@ -48,6 +48,8 @@
//#define TCP_MSS 2048
//#define TCP_WND 512
+#define TCP_LISTEN_BACKLOG 1
+
/*------------------------------------------------------------------------------
---------------------------------- Timers --------------------------------------
------------------------------------------------------------------------------*/