diff --git a/src/ESPEasy.ino b/src/ESPEasy.ino
index 6098f18a22..c52376aa57 100644
--- a/src/ESPEasy.ino
+++ b/src/ESPEasy.ino
@@ -314,7 +314,15 @@
   #define FILE_SECURITY     "security.dat"
   #define FILE_NOTIFICATION "notification.dat"
   #define FILE_RULES        "rules1.dat"
-  #include "lwip/tcp_impl.h"
+  #include <lwip/init.h>
+  #ifndef LWIP_VERSION_MAJOR
+    #error
+  #endif
+  #if LWIP_VERSION_MAJOR == 2
+  //  #include <lwip/priv/tcp_priv.h>
+  #else
+    #include <lwip/tcp_impl.h>
+  #endif  
   #include <ESP8266WiFi.h>
   #include <ESP8266WebServer.h>
   ESP8266WebServer WebServer(80);
diff --git a/src/Misc.ino b/src/Misc.ino
index a17e53109d..f0e1f0ef4b 100644
--- a/src/Misc.ino
+++ b/src/Misc.ino
@@ -7,10 +7,14 @@
 #if defined(ESP8266)
 void tcpCleanup()
 {
-  while(tcp_tw_pcbs!=NULL)
-  {
-    tcp_abort(tcp_tw_pcbs);
-  }
+  #if LWIP_VERSION_MAJOR == 2
+    // is it still needed ? 
+  #else
+    while(tcp_tw_pcbs!=NULL)
+    {
+      tcp_abort(tcp_tw_pcbs);
+    }
+  #endif  
 }
 #endif
 
diff --git a/src/Networking.ino b/src/Networking.ino
index 36a6c27813..5b3951bc04 100644
--- a/src/Networking.ino
+++ b/src/Networking.ino
@@ -2,6 +2,11 @@
 // Syslog
 // UDP system messaging
 // SSDP
+  #if LWIP_VERSION_MAJOR == 2
+   #define IP2STR(addr) (uint8_t)((uint32_t)addr &  0xFF), (uint8_t)(((uint32_t)addr >> 8) &  0xFF), (uint8_t)(((uint32_t)addr >> 16) &  0xFF), (uint8_t)(((uint32_t)addr >> 24) &  0xFF)
+  #endif  
+ 
+ 
 
 /*********************************************************************************************\
    Syslog client