Box art - Call of Duty: Modern Warfare

How to fix Call of Duty: Modern Warfare Error Code 4

Players are getting booted out of CoD: Modern Warfare (2019) for seemingly no reason. An error message reads “You have been disconnected from the Call of Duty: Modern Warfare servers.” While it doesn’t provide much to go on, there’s an easy Call of Duty: Modern Warfare Error Code 4 fix outlined in this guide. Stick with us to get back up and running ASAP.

What is the Call of Duty: Modern Warfare Error Code 4 fix?

Modern Warfare Error Code 4 fix

The full Modern Warfare Error Code 4 error message reads as follows:

ERROR

You have been disconnected from the Call of Duty: Modern Warfare servers. Please try again or visit https://support.activision.com/mwstatus for updates.

Error Code: 4

First things first, it’s a good idea to check the CoD: MW Online Services page as advised. If there are no known issues, then you’ll need to proceed with the following fix.

Call of Duty: Modern Warfare Error Code 4 fix

Follow these simple steps in order to address Modern Warfare Error Code 4 on PC:

  1. Close the Call of Duty: Modern Warfare application.
  2. Close the Battle.net Blizzard client.
  3. Open “File Explorer” from your desktop.
  4. Navigate to “Documents” via the sidebar.
  5.  Locate and delete the “Call of Duty Modern Warfare” folder.
  6. Open Battle.net and run Modern Warfare.

The game should now work fine. Deleting the CoD: MW folder didn’t get rid of anything major — you don’t need to re-download files and your progress will remain intact.

If for some reason this Error Code 4 fix didn’t work, we’d recommend contacting Activision Support (@ATVIAssist). Explain the issue and quote Error Code 4 to have somebody from Activision help you out.

For more on Infinity Ward‘s latest CoD game, check out all the details on players getting randomly banned. Some concept art has also revealed that Modern Warfare could’ve had a Zombies mode! Unfortunately, it just wasn’t to be. At least Spec Ops is decent fun.