[SOLVED] Error Code 4 Potential Fixes in Warhammer 40K: Space Marine 2 – Detailed Guide

Warhammer 40K: Space Marine 2 players worldwide are facing a common multiplayer error numbered 4. This error displays the message “Connection Lost” or something similar and bars entry within the game creating a lot of panic and annoyance for the player.

Error code 4 is a client-side error that usually occurs when the user’s internet is not working properly or the game is having difficulty setting up a stable internet connection for smooth gameplay.

1. How to fix Error Code 4 in Warhammer 40K: Space Marine 2?

Error code 4 is primarily caused by poor network and can be solved by following methods:

• Restart Space Marine 2 and the Wi-Fi
• Refresh internet connection
• Verifying the integrity of the game files on Steam

An error like this usually refers to a poor network, so here are a couple of potential fixes to get the game back online and strengthen your internet connection.

2. Restart Space Marine 2 and the Wi-Fi

Sometimes, the solution is as easy as that! Just terminate the game application altogether and end all the processes related to it running in the background (if any), then relaunch the game. It might sound obvious and insufficient, but it does the job.

If you use Steam, keep the Steam client running in the background after relaunching the game. This trick can fix steam-related connection errors.

While you are at it, try the oldest trick in the book as well and restart your Wi-Fi router.

3. Refresh Internet Connection

This method will actually make you work to solve the connection error using the command prompt. To do so:

1. Go to the Search Box, and type ‘cmd‘ and select Run as Administrator.
2. Upon doing so, enter the following commands one after another:

• ipconfig /flushdns
• ipconfig /registerdns
• ipconfig /release
• ipconfig /renew
• netsh winsock reset

3. Restart your PC when done.

4. Verifying the Integrity of the Game Files on Steam

• Launch Steam. 
• Right-click on the icon of “Warhammer 40K: Space Marine 2” in your Steam library. 
• From the drop-down menu, select “Properties.” 
• Select the Local Files tab, and 
• Click the “Verify integrity of game files” button.

Wait for the process to complete, and then relaunch the game.

After attempting all these fixes, the game should work like normal. Unfortunately, if none of it helps, you should wait for some time for an official fix of the error from the developers.

5. About Warhammer 40,000: Space Marine 2

Warhammer 40,000 Space Marine 2 is a third-person shooter hack and slash developed by Saber Interactive. The gameplay involves fighting Tyranid hordes while interchanging between melee and shooting attacks to defend the Imperium.

Apart from the thrilling single-player campaign, the game also offers a unique cooperative mode named Operations, and three 6v6 competitive multiplayer modes called Annihilation, Seize Ground, and Capture and Control.