How to resolve this error in Call of Duty: Modern Warfare
Failed to open a required file. Please check your internet connection and try again.
Follow these steps to troubleshoot problems with your low-speed or wireless internet connection.
How to resolve this error in Call of Duty: Modern Warfare 2 Campaign Remastered
Failed to download data. Please check your network connection.
Troubleshooting steps to help you connect to the Battle.net desktop app.