While Warzone is generally quite a stable game, aside from the occasional strange in-game glitch, sometimes players encounter error codes that keep them from accessing the game at all. If you’re coming across one of the common issues, here’s everything you need to know about how to fix error code 664640 in Warzone.
The error code usually crops up when the game struggles to fetch your online profile, which stops you logging into the servers. While there are potentially ways around it, it’s usually caused by one problem.
How to Fix Error Code 664640 in Warzone
The first thing you’ll want to do is check whether the Warzone and Call of Duty servers are down by going to DownDetector or Activision’s Twitter accounts. If they’re reporting issues with the game’s servers, it’s best to just wait it out and come back to the game when everything is back to normal.
The Error Code 664640 will usually fix itself in Warzone, so waiting for it will always be a good option, since it’s likely a problem on Activision’s end.
If there aren’t any problems on the server side or your own internet isn’t down (make sure that’s the case too), you can try the other option that players have reported as working.
What you can try is changing your DNS settings manually. In the Network Settings area of your system, look for the option to adjust the DNS settings and enter 220.127.116.11 or 18.104.22.168. where relevant. Hopefully that’ll fix the issue, especially if it’s something that you’re encountering regularly, as a lot of PlayStation players do.
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