“Error Code 4” in Warhammer 40,000: Space Marine 2 is a generic server connection issue. It is not an error with your game files, but rather an issue that prevents your game from maintaining a stable connection to the servers.
🧐 What is Error Code 4
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It shows up when the game loses connection to its online services/servers.
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Can happen on any platform (Steam/PC, Xbox, PlayStation)
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Possible triggers include VPNs, bad internet setup, DNS or firewall issues, device configuration mismatches, or server‑side problems.
🔧 Possible Fixes
These are things people have tried that often help with Error Code 4. Might not all apply depending on your setup.
| Fix | What to Do |
|---|---|
| Turn off VPN / Proxy | If you’re using a VPN, proxy, or any network rerouting tool, disable it. Many reports say this solves Error Code 4. |
| Check/Restart Internet / Router | Turn off your Wi-Fi or disconnect network, wait ~30 seconds, reconnect. Use wired Ethernet if possible (more stable). Reboot router. |
| Use Different DNS Servers | Switching to public DNS like Google’s (8.8.8.8, 8.8.4.4) has helped some users. |
| Verify Game Files | If on PC / Steam, use the “Verify Integrity of Game Files” option in the game’s control panel to check for corrupted/missing files. |
| Disable Overlays / Extras | Steam overlay, other in‑game overlays, etc., may interfere. Try turning them off and see if it helps. |
| Sync System Time & Time Zone | Some reports say incorrect time settings cause this error. Setting date/time/time zone to automatic or syncing helps. |
| Check Server Status | Sometimes the issue is on Saber Interactive’s end. Check their support/forum / official server status pages. If the servers are down, there’s nothing you can do other than wait. |
| Reset Network Configuration | On PC, run commands like ipconfig /flushdns, netsh winsock reset, etc., or reset your router to factory settings. |
Also Read : 800 421 2110 | Credit Card accounts Number BoA
Adjust Router Settings (Advanced):
If none of the above work, the problem may be related to your router’s port settings. Users have reported success by manually opening the following ports:
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- TCP: 27015, 27036
- UDP: 27015, 27031-27036
If you’ve tried all of these solutions and the error persists, it’s best to report the issue directly to the official Focus Entertainment Support Center.
⚠️ Things to Check / Keep in Mind
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If you’re on console, options like changing DNS or running commands are more limited. Focus on router, internet, and server status issues.
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If the error started after a patch/update / only recently, it could be a bug introduced in that update. The developers may fix it in a patch.
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Make sure your game is fully up to date. Even small fixes can resolve connectivity issues.
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If you’re using public Wi-Fi or a restricted network (campus, work, etc.), there might be firewall/NAT restrictions.
