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Call Of Duty Modern Warfare 2 Dev Error 6144 Fix

Here are all the ways you can fix the dev error 6144 in CoD MW2.

In Call of Duty Modern Warfare 2, while playing the Multiplayer mode many players are getting the dev error 6144. You get it when your matchmaking fails or if you or some other player in the lobby gets kicked. And it can be annoying as it prevents you from playing the game. So in this guide check out how you can fix Dev Error 6144 in CoD MW2.


How to Fix Dev Error 6144 in CoD MW2

how to fix dev error 6144 in cod mw2

The best way to fix the dev error 6144 for this game is to restart your game. This is not an official fix, but since you get it for the Multiplayer mode of the game these are all the workarounds you can try to resolve it:

  • Restart your game: Starting with the easiest fix that also works the best. When you get this error the game will only give you an Exit button. Click on it. Now when you get back to the main screen, instead of starting another match close the game. Now start it again and then try playing any multiplayer match and you shouldn’t get this error.
  • Play on a Wired connection: If you can play the game with a wired connection then choose that over a wireless connection. A wired connection is more stable and will decrease the chances of you getting this error.
  • Refresh your internet: There is a good chance your internet is working but not giving its best performance. You can fix that by simply refreshing your connection. If you play wirelessly then reboot your router. And for a wired connection plug out the Ethernet cable from your system and wait for around 10 to 30 seconds. Next, plug in the cable again and then try to play the game.

If none of the above fixes work then you should wait for an update of the game. Once the developers fix this issue and release some patch for it, you shouldn’t get this error.


That covers this guide on how to fix Call of Duty Modern Warfare 2 Dev Error 6144. If you are able to play Multiplayer again and need help with loadout, best weapon, and more then check out our Modern Warfare 2 Wiki.