diff --git a/lwip/src/include/lwipopts.h b/lwip/src/include/lwipopts.h
index c0a50e0a..0e1b40c7 100644
--- a/lwip/src/include/lwipopts.h
+++ b/lwip/src/include/lwipopts.h
@@ -176,10 +176,10 @@
 #define DHCP_DEBUG		LWIP_DBG_OFF
 #define ETHARP_DEBUG		LWIP_DBG_OFF
 #define TCPIP_DEBUG		LWIP_DBG_OFF
-#define SYS_DEBUG		LWIP_DBG_ON
+#define SYS_DEBUG		LWIP_DBG_OFF
 #define RAW_DEBUG		LWIP_DBG_OFF
 #define MEM_DEBUG		LWIP_DBG_OFF
-#define IP_DEBUG		LWIP_DBG_ON
+#define IP_DEBUG		LWIP_DBG_OFF
 #define INET_DEBUG		LWIP_DBG_OFF
 #define NETIF_DEBUG		LWIP_DBG_ON
 #define TIMERS_DEBUG		LWIP_DBG_OFF