Space Marine 2 Error Code 4: Connection Lost Issue Resolved

The Warhammer 40,000: Space Marine 2 Error code 4 has emerged as a prevalent issue, hindering players from enjoying the recently launched game. This error manifests during the game launch as it attempts to connect to servers, displaying the message: Connection to Warhammer 40,000: Space Marine 2 services was lost!

The Connection Lost Error Code 4 can occur across all platforms: Xbox, PlayStation, and PC. Potential causes include server-side problems, bugs within the game, network connectivity issues, incorrect system time, misconfigured network settings, or active overlays.

Before diving into troubleshooting, it’s wise to check the server status or see if others are experiencing the same error. Ensure all pending operating system and game updates are installed, disable any active VPN, and switch to a wired connection or mobile data using a hotspot.

How to Fix Space Marine 2 Error Code 4?

Tip

The solutions outlined below are tailored for Windows PCs, but similar methods can resolve the Error Code 4: Connection Lost on Xbox and PlayStation as well.

1. Sync the Time

1. Press Windows + I to launch Settings, navigate to Time & language in the left menu, and select Date & time.
2. Click the Sync now button.
3. After syncing, restart your PC and check for any improvements.

If time synchronization is unsuccessful, address that first, and Space Marine 2 Error Code 4 should cease to occur!

2. Disable Cloud Saves for Space Marine 2

1. Open Steam, click on the menu in the top left corner, and select Settings.
2. Navigate to the Cloud tab, and disable the toggle for Enable Steam Cloud.
3. Restart your PC, then launch Steam to run Space Marine 2 and see if the Connection Lost error is resolved.

3. Switch to Google’s DNS

1. Press Windows + S to open Search, type Control Panel, and select it from the results.
2. Click on Network and Internet.
3. Then, click on Network and Sharing Center.
4. Select Change adapter settings from the left pane.
5. Right-click on your active network adapter (Wi-Fi or Ethernet) and choose Properties.
6. Select Internet Protocol Version 4 (TCP/IPv4), and click on Properties.
7. Choose the option Use the following DNS server addresses and enter the following:
   • Preferred DNS server: 8.8.8.8
   • Alternate DNS server: 8.8.4.4
8. Check the box for Validate settings upon exit, then click OK to save changes.

I have switched to Google’s Public DNS for fixing Space Marine 2 Error Code 4, but you can also opt for the fastest DNS server available near you.

4. Disable Steam Overlay

1. Open Steam, go to your Library, right-click on Space Marine 2, and select Properties.
2. Under the General tab, disable the option for Enable the Steam Overlay while in-game.
3. Launch Space Marine 2 again to check if the Error Code 4 has been resolved.

5. Reset the Network Configuration

1. Press Windows + R to open the Run dialog, type cmd, and press Ctrl + Shift + Enter to open Command Prompt as administrator.
2. Click Yes when prompted by the UAC.
3. Enter the following commands one at a time, pressing Enter after each:
   ipconfig /release
ipconfig /flushdns
ipconfig /renew
netsh int ip reset
netsh winsock reset
4. Restart your PC for the changes to take effect.

If a simple reset doesn’t solve the problem, consider resetting the network adapter in Windows to eliminate any misconfigurations.

6. Reset the Router to Factory Settings

A solution that worked for 3 out of 5 players experiencing Space Marine 2 Error Code 4 on Xbox, PS, or PC was to reset their router. To do this, turn off the router, unplug it from the power source for one minute, then reconnect and power the router back on.

If the issue persists, access the router settings and reset it to factory defaults.

7. Contact Space Marine 2 Support

If all else fails, your final resort is to reach out to Space Marine 2 support through the official website. There, you can explore generic fixes listed and check for improvements.

In my experience, the Space Marine 2 Error Code 4 is typically a server-side issue. Efforts on your end may result in only temporary fixes, as a permanent resolution will depend on updates from the game developers.

Which solution proved effective for you? Share your insights with our readers in the comments section.

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