How To Fix MW2 Error Code 2901 (Lobby Not Found)

Encountering the lobby not found error in MW2? Check out our guide on how to fix the error code 2901 in Modern Warfare 2.

Since the rocky launch of COD Modern Warfare 2, players have dealt with a fair share of errors and technical issues. One of these errors includes the error code 2901 preceding the error cause: 10 and Lobby not found error message. It was confirmed by Infinity Ward that the reason behind this error was the Season 2 Reloaded update. But is there a fix or workaround for this error code? Or has it been resolved? Check out our guide on how to fix the Error code 2901 in MW2 to find out.

How to Fix Error Code 2901 in MW2 (Lobby Not Found)

error code 2901 mw2

Fortunately, the devs at Infinity Ward have resolved the error code 2901 with their recent update in Modern Warfare 2. So, you need to restart the game or device to apply this hotfix.

But there can be other reasons if you are still facing the error cause: 10, error code 2901 in MW2. Since the update is live, you can manually update the game to the latest version. Note that if you are using an outdated game version, the hotfix won’t be applied automatically. So, check for any pending updates and install them to resolve this error. This should fix the error code 2901 in all supported platforms including PC, PS5, PS4, Xbox Series X | S, and Xbox One.

But if that doesn’t work out, here are some workarounds to resolve this error on your PC and consoles:

  • Check your Internet Connection
  • Restart your router or Modem  
  • Check for Server Outages
  • Restart or Power Cycle your Console
  • Reinstall COD Modern Warfare 2 on your console or PC
  • Submit a Ticket to Activision Support

That’s everything covered about the error code 2901 in COD MW2. If you liked this guide, check out more guides on how to fix DirectX Encountered An Unrecoverable Error, failed fetching crossplay friends list, the dev error 1152, and more COD Modern Warfare 2 Guides on our dedicated section right here on Gamer Tweak.