If you have encountered the Roblox Authentication Error Code 901 on Xbox or Windows 11/10 PC, try the solutions in this post to resolve the issue.

Roblox users are reporting widespread login issues and receiving an "Unknown error occurred" message. The company has not yet issued an official statement.

A third person wrote, “Roblox is completely down, app and website are gone." Another user reported, “It’s still down for me, it won’t let me login. it says ‘system error, try again later ...