Factorio Forums

A couple of friends and I have tried to play Factorio together over multiplayer, but keep running into the same error message whenever we try to connect to each other: "couldn't establish network communication with server"

We've forwarded the 34197 port on UDP and bypassed firewalls, but nothing seems to work. We got it to work through evolve for a very little while, but the connection through evolve was so bad, that it took 10-15 minutes to join a game and it kept desyncing.

This is the latest log file info:

10.356 Factorio initialised
20.410 Info UDPSocket.cpp:27: Opening socket at (0.0.0.0:0)
87.714 Info UDPSocket.cpp:235: Socket closed
93.728 Joining game 194.255.34.191:34197
93.728 Info UDPSocket.cpp:33: Opening socket
93.728 Info ClientMultiplayerManager.cpp:538: MapTick(-1) changing state from(Ready) to(Connecting)
96.325 Error ClientMultiplayerManager.cpp:90: MultiplayerManager failed: multiplayer.not-received-connection-accept-reply
96.326 Info ClientMultiplayerManager.cpp:538: MapTick(-1) changing state from(Connecting) to(InitializationFailed)
97.428 Info ClientMultiplayerManager.cpp:177: Quitting multiplayer connection.
97.428 Info ClientMultiplayerManager.cpp:538: MapTick(-1) changing state from(InitializationFailed) to(Disconnected)
97.438 Info UDPSocket.cpp:235: Socket closed

Can anyone help us?