Box art - Call of Duty: Modern Warfare

Call of Duty: Modern Warfare ‘A required network service has failed’ error fix

The Call of Duty: Modern Warfare “A required network service has failed” error has been hitting players hard, preventing them from playing one of the most popular first-person shooters around on PC, PS4, and Xbox One. Instead of jumping into their favorite map to dish out damage with their chosen weapon, players are instead finding themselves matched up against this pesky error message, unable to fight back. Thankfully, we have some Modern Warfare “A required network service has failed” error fixes for you to try. Read on for the full details.

How to fix the Call of Duty: Modern Warfare ‘A required network service has failed’ error

Call of Duty Modern Warfare A required network service has failed

In order to fix the Call of Duty: Modern Warfare “A required network service has failed” error, there are a few things that you can try. Follow the list below to troubleshoot the issue.

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Call of Duty: Modern Warfare Network Service fixes

  • First, ensure that your game is fully updated. Use the “Check for update” function on your system to force any available patches to download and install.
  • With the patches installed, fully close the game and then reboot it.
  • If you still fail to connect, try restarting your system.
  • If the network error still persists, a router restart may help.

That is unfortunately all that you can do on your side to fix this issue. We’d recommend waiting an hour or so and then checking to see if it’s working again.

It’s possible that the issue is just affecting one of either Warzone and Multiplayer, so try playing the other mode while awaiting a fix.

Here’s hoping the developer can get the game working properly again soon. In the meantime, you can monitor the official Activision support page here. This details any maintenance or downtime that could impact gameplay.