Support for the widest array of network configurations. Auto-configure as best we can.

src/engine/net/client/msg/login/GameServerIPResponseMsg.java

@@ -36,7 +36,7 @@ public class GameServerIPResponseMsg extends ClientNetMsg {
      */
     public GameServerIPResponseMsg() {
         super(Protocol.GAMESERVERIPRESPONSE);
-        this.ip = ConfigManager.MB_BIND_ADDR.getValue();
+        this.ip = ConfigManager.MB_EXTERNAL_ADDR.getValue();
         this.port = Integer.parseInt(ConfigManager.MB_WORLD_PORT.getValue());
     }