If they're fine, move on to the next step. You can check what's causing your error by following these diagnostic steps: This is a common and uncomplicated error-code, but there are some things we can do to fix it.īegin by identifying which of the three causes above applies to your case, and then follow our advice.
You don't have the latest version of the game installed.The Call of Duty: Modern Warfare 2 servers are down.The error is caused by a failure to verify your account with the Call of Duty servers, and we can usually blame that on one of the following:
