How to Fix Space Marine 2 Connection Issues
If Space Marine 2 will not connect, drops you out of matches, or shows an error code, work through the three checks below in order. They apply to every platform. If they don't help, go to the guide that matches your platform or what you are seeing.
Power cycle your router. Unplug the power cable from your router, wait at least 30 seconds, then plug it back in and wait for it to come fully online. Restarting from the router's admin page is not the same thing — the cable has to come out.
Try a different connection. Connection failures usually come from the route between you and our servers rather than from your machine, so changing that route often clears them.
On a phone hotspot: connect your PC or console to your phone's hotspot and play one match. If the game works there, your internet provider is routing you badly.
If you use a VPN or proxy: disconnect it completely rather than pausing it, then relaunch.
If you do not use one: try a free VPN for a single match and see whether the connection holds.
3. Repair or reinstall the game. Damaged or incomplete files cause connection failures that appear to be network problems.
Steam: right-click Space Marine 2 → Properties → Installed Files → Verify integrity of game files
Epic Games Store: library → the three dots under Space Marine 2 → Manage → Verify
Microsoft Store: Settings → Apps → Space Marine 2 → Advanced options → Repair
PS5 and Xbox: delete the game, then reinstall it. Your progress is stored on your account, not in the game files.
Find your problem
You play on PlayStation 5 → How to Fix Space Marine 2 Connection Issues on PS5
You play on Xbox Series X or Series S → How to Fix Space Marine 2 Connection Issues on Xbox
If you play on PC, pick the guide that matches what you are seeing:
You get an error code — CSF, N-2, N-10 or N-14 — the game reaches our servers and the session is refused. → How to Fix Space Marine 2 Error Codes CSF, N-2, N-10 and N-14
You drop out part-way through a mission — the game connects fine, then disconnects mid-match. → How to Fix Space Marine 2 Disconnecting Mid-Match
You get a "Mods Detected" error — multiplayer is blocked, and this happens to players who use no mods at all. → How to Fix Space Marine 2 Mods Detected Error
You cannot join a friend — invites fail, the squad shows as not joinable, or you land in a different session. → How to Fix Not Being Able to Join a Friend in Space Marine 2
Still not connecting?
Tell us what you have already tried, and we will look at it from there → Report a Space Marine 2 Connection Issue