Factorio Forums

Posted: **Fri Jan 09, 2026 5:25 pm**

Multiplayer doesn't work.
This message appears when you try to connect:
"couldn't establish network communication with server"

Posted: **Fri Jan 09, 2026 5:27 pm**

Steam networking has been having issues today. Given nothing has changed in the Factorio binary in several months that is the likely issue.

[2.0.72] Multiplayer doesn't work