At the moment all servers for Call of Duty Modern Warfare and Warzone are offline – August 18, 2020.
So far there is no official information, only the following message:
We are currently experiencing connectivity issues. This incident is being investigated.
At the moment you will get different error messages! For example, the Modern Warfare Error Code 8192. But rest assured, you haven’t done anything wrong and nothing is broken with you!
We will update this article as soon as there is news!
You can also follow the Modern Warfare server status here: support.activision.com