After we have looked at this error closely, we’ve come up with a shortlist of possible culprits that might cause this error to appear on your PC: Now that you are aware of all the possible causes that might make this error occur, here’s a list of all the methods that we’ve come up with that could potentially fix your game:

1. Check for an Ongoing Server issue

Before you try any practical method to fix this Halo Infinite issue, you should start by making sure that the servers are fully functional and not interfering with your local installation. This Halo Infinite MP Gives error “-105” might be beyond your control if the servers are down or undergoing maintenance. So, to make sure that this is not the problem, visit the Halo Infinite page on the Down Detector site to see if other affected players have reported any server issues. If you want to search a bit deeper about the error, you can also visit Halo’s Support Twitter account where they post if there are any problems with the server. In case after your investigations there are no problems with the servers, check below the next method.

2. Restart your PC

Other players facing this issue recommend restarting your PC because this problem might be caused by a computer error that affects a dependency used by the game. This method has helped a few affected players to get rid of this issue. A simple PC restart can be performed using the following steps: If the same error still appears, go check the next method below.

3. Perform an Integrity Check on Steam

The Halo Infinite MP error “-105” could be also caused by some type of system file corruption that is affecting the local installation of Halo Infinite. If this issue is occurring when launching the game through Steam, you should be able to fix it by performing an integrity check and repairing your Steam installation of Halo Infinite. This process will check every game file individually and replace any harmed or corrupted files with a healthy equivalent, and in case any files are missing, they will be replaced. Here is the guide you need to follow in case you don’t know how to verify the integrity of Halo Infinite through Steam: If doing an integrity check has not helped you fix your Halo Infinite error, check below the last method.

4. Download the game from the Microsoft Store

If none of the methods before have fixed your Halo Infinite MP Gives error “-105” on Steam, the last thing you can try is to download this game from the Microsoft Store. By doing this, you won’t encounter the error, and the progression should be saved because the game uses your Microsoft Account instead of your Steam account. In case you don’t know how to do this, here’s a guide that will help you do it:

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