Call of Duty: Modern Warfare 2 Dev Error 11063

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How to Fix Call of Duty: Modern Warfare 2 Dev Error 11063

Abhimannu Das
Updated On: 
Highlights
The Dev Error 11063 in Call of Duty: Modern Warfare 2 occurs when trying to queue up Call of Duty League (CDL) Moshpit games.
Infinity Ward has already fixed the issue but some players are still running into the error code.
Updating the game or restarting your system can get rid of the error if you are still experiencing it.

Many players have started experiencing Dev Error 11063 in the latest version of Call of Duty: Modern Warfare 2 when trying to queue up Call of Duty League (CDL) Moshpit games. Infinity Ward quickly took note of the issue and has resolved it. Players should experience the error sparingly. If you are still facing the issue, it could be related to network connectivity issues, and here are a few solutions that can help.

Modern Warfare 2 Dev Error 11063: How to Fix

If you are still facing the Dev Error 11063 it is because the hotfix has not applied yet which was preventing players from playing CDL Moshpit games.

  1. Exit the game and relaunch the game which should automatically download any pending updates.

  2. If you end up on the Download Failed screen, click on Go Offline.

  3. Wait a few moments and click on Go Online again.

  4. If you still do not get access to the update, close the game and launch Battle.Net/Steam or head to the PlayStation/Xbox store to check for updates

If the above solution does not work it is likely that you are facing issues with your internet service provider. You should try checking for updates using a different internet connection like a mobile hotspot.

If you do not have a different internet connection to test the download on, your temporary network files may be causing issues. On PC, cleaning your files can often fix the 11063 dev error in Modern Warfare 2.

  1. Press the Windows Key

  2. Type “Command Prompt” and hover on the first app result

  3. Click on Run As Administrator

  4. If asked whether to allow Command Prompt to make changes to your computer, select Yes.

  5. You should now get a new window with a black screen.

  6. Type "ipconfig /flushdns" and press Enter.

  7. Type "ipconfig /registerdns" and press Enter.

  8. Type "ipconfig /release" and press Enter.

  9. Type "ipconfig /renew" and press Enter.

  10. Type "netsh winsock reset" and press Enter.

  11. Restart your computer.

If you are a console gamer, restart your console and router and turn them back on after a couple of minutes. If you are still unable to download the updates, reach out to your internet service provider for assistance.


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Abhimannu is a PC esports writer at AFK Gaming. With over seven years of experience in esports journalism, he has worked on a myriad of games and their ecosystems including Valorant, Overwatch and Apex Legends.

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