Call of Duty Black Ops 6 - How To Fix "‘Our level fastfile is different from the server" Error

With the release of Black Ops 6 now in full swing, countless fans are gearing up to dive back into the Black Ops experience. However, as with any new launch, there are bound to be a few bugs, with the “Our level fastfile is different from the server” error being a frequent issue for many players. Fortunately, we’ve outlined several solutions below to help you quickly resolve this problem and get back into Black Ops 6.

How To Fix "‘Our level fastfile is different from the server" Error In BO6

The error message "Our level fastfile is different from the server" may sound complex and even critical, but it’s fairly simple to resolve. Start by reloading the game, and if the message persists, close the Call of Duty app completely and restart it.

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This error indicates a temporary issue with your connection to the server, which a quick restart should resolve. While it can be an occasional inconvenience, it isn’t game-breaking and, once resolved, shouldn’t reappear frequently. But if it does you can contact Activision support for any irregular issues.

Treyarch is likely aware of this and other early-release bugs and is expected to address them in an upcoming patch, as is standard with new releases. So, if you encounter this error, a quick game restart should suffice, and give it some time for Treyarch to smooth out these initial issues - hopefully for good.