If the general fixes didn't help, the solution may be specific to your platform of choice.
: On consoles like PS5, the game typically requires you to be signed into a PlayStation Network (PSN) account to access offline modes; it may fail to boot on a strictly local account. cod mw3 offline fix
This usually indicates a server-side outage. Check Downdetector or official Activision Support channels to confirm server status, then simply wait until servers are restored. If the general fixes didn't help, the solution
If device-specific steps fail, the issue likely resides in how your router handles Call of Duty traffic. 1. Enable UPnP Enable UPnP For a visual walkthrough on how
For a visual walkthrough on how to bypass the friends list glitch and join parties when everyone appears offline, check out this guide:
: Completely power off your PS5/Xbox and unplug it for 60 seconds to clear the system cache. Verify Files (Steam/Battle.net) Verify Integrity of Game Files
Close the launcher entirely. Press Windows Key + R , type %programdata% , and delete the Battle.net or Steam folder caches if applicable. Restart your PC. For Consoles (Xbox/PlayStation):