How to fix error code 4 ‘connection lost’ in Warhammer 40K Space Marine 2

Warhammer 40K Space Marine 2 is a heap of fun, but some issues cause frustration. If you encounter the error code 4 “connection lost” problem in Space Marine 2, we’ve got some fixes to help.

Errors and bugs in Space Marine 2 have disrupted progression for players, with everything from game crashes to invisible enemies. There are fixes, however, and there are also some steps you can take to fix the error code 4 problem.

We’ve got all the details you need here.

Potential fixes for error code 4 in Space Marine 2

The “connection lost” error code 4 issue in Space Marine 2 relates to issues connecting to the game’s online services. As such, the issues may be at your end but could also be server-side. Either way, we’ve got some steps to help you.

After each step, try accessing online services in Space Marine 2 to see if there are any changes.

1. Check the Space Marine 2 server status for any ongoing issues or maintenance.
2. Check for any updates for Space Marine 2.
3. Restart your modem or router.
4. Restart your PC or console.
5. If on Steam, verify the file integrity of Space Marine 2 by following these steps:
6. Right-click on Space Marine 2 in your game library.
7. Select Properties and navigate to the Installed Files tab.
8. Select Verify integrity of game files.
9. If on Steam, disable cloud saves by following these steps:
10. Open Steam Settings.
11. Select the Cloud option.
12. Toggle the Enable Steam Cloud setting to off.

If you try all of the relevant fixes above but still encounter issues, I recommend contacting Saber Interactive directly for support.