diff --git a/WifiInterface.cpp b/WifiInterface.cpp
index 9e7e6ed..be17b02 100644
--- a/WifiInterface.cpp
+++ b/WifiInterface.cpp
@@ -236,6 +236,8 @@ bool WifiInterface::setup2(const __FlashStringHelper* SSid, const __FlashStringH
     }
   }
 
+  StringFormatter::send(wifiStream, F("AT+CIPSERVER=0\r\n")); // turn off tcp server (to clean connections before CIPMUX=1)
+  checkForOK(10000, OK_SEARCH, true); // ignore result in case it already was off
    
   StringFormatter::send(wifiStream, F("AT+CIPMUX=1\r\n")); // configure for multiple connections
   if (!checkForOK(10000, OK_SEARCH, true)) return false;
diff --git a/version.h b/version.h
index 6e45e70..d0c09b9 100644
--- a/version.h
+++ b/version.h
@@ -4,7 +4,7 @@
 #include "StringFormatter.h"
 
 // const char VERSION[] PROGMEM ="0.2.0";
-#define VERSION "0.2.0"
+#define VERSION "3.0.0"
 
 
-#endif
\ No newline at end of file
+#endif