Online games tend to come with a handful of issues, and Call of Duty‘s Modern Warfare 3 frequently has several online errors you can expect to encounter. These could be a range of issues, including Error Code 2901.

You will encounter Error Code 2901 when attempting to log into the Modern Warfare 3 servers. If you want to play online, you need to ensure you have a stable connection, and Error Code 2901 prevents you from getting into the game. Unfortunately for players, like many error codes, there’s only so much you can do, but it’s ultimately up to the development team and those maintaining the servers to handle this issue.