And now it has started working again after the new patch came. I guess it had something to do with the version, because i checked my connections and firewall and they are fully open for factorio.

So yeah, here is the whole log: 0.023 2017-11-28 00:43:32; Factorio 0.15.39 (build 30947, win64, steam) 20.918 Error ClientMultiplayerManager.cpp:94: MultiplayerManager failed: multiplayer.not-received-connection-accept-reply It almost looks like something is blocking the packets comming from the s...

So yeah, here is the whole log: 0.023 2017-11-28 00:43:32; Factorio 0.15.39 (build 30947, win64, steam) 0.023 Operating system: Windows 7 Service Pack 1 0.023 Program arguments: "C:\Program Files (x86)\Steam\steamapps\common\Factorio\bin\x64\Factorio.exe" 0.023 Read data path: C:/Program F...