diff --git a/lwip/src/include/lwipopts.h b/lwip/src/include/lwipopts.h
index 83b714bc..6697aba8 100644
--- a/lwip/src/include/lwipopts.h
+++ b/lwip/src/include/lwipopts.h
@@ -49,7 +49,7 @@
 /**
  * TCP_SND_BUF: TCP sender buffer space (bytes). 
  */
-#define TCP_SND_BUF		2048
+#define TCP_SND_BUF		1512
 
 #define TCP_SND_QUEUELEN        8