Possible fix regarding connection problems

[NoSignal-K]

Look for the CertsUpdater.exe file, execute it. Of course, verify the game-files if you haven't done that since the server maintenance.

"Steam\steamapps\common\Space Marine 2\client_pc\root\bin\pc\EpicOnlineServices" is the folder path.

I don't think it's a Sabre issue but rather an Epic Services or Steam issue, as CertsUpdater.exe sometimes doesn't execute during the first launch after an update.

Let me or rather the people know if it worked for you so more people become aware.

After that I can at least join other people's matches. Before, I could only "host" matches and never join via quickmatch. But it seems like people still won't join an existing match if someone leaves mid-operation.