Roblox Error Code 901: How to fix ‘Authentication Error’ message

Some users are encountering the Roblox Error Code 901 notification in-game. The full message reads: “Trouble communicating with Roblox servers. Please try again.” This Authentication Error pop-up commonly appears on Xbox Series X|S and Xbox One. But, is there a quick and easy fix for this connectivity issue? Here’s the need-to-know info on a simple solution to the Roblox Error Code: 901 problem.

Roblox: Xbox Error Code 901 fix (2021)

Here’s how to fix the Roblox Error Code 901 server authentication issue on Xbox Series X|S and Xbox One:

1. Reboot the Roblox application and try again.
2. Check for known server issues via the Roblox Status page.
3. Download and install any available game updates:
   • Got to “My games & apps” from the Xbox home screen.
   • Navigate to the “Manage” tab.
   • Select the “Updates” option.
   • If it appears, choose Roblox.
4. Delete and reinstall Roblox:
   • Highlight the game and press the Menu (start/pause) button.
   • Select “Manage game and add-ons” from the list.
   • Hit “Uninstall all” and then confirm the choice.
   • Go back to the home screen and press the Y button.
   • Enter “Roblox” in the search bar.
   • Select the first result and download the game.
5. Hard reboot the Xbox Series X|S or Xbox One console:
   • Hold the Xbox button.
   • Select the “Restart console” option and confirm.
6. Check the internet connection:
   • Reset the internet router and/or modem.
   • Switch from a Wi-Fi to a wired Ethernet connection.
   • Change the internet network.
   • Swap to a mobile data connection (be mindful of additional charges).

After following all of the above steps, Xbox players should fix the Roblox 901 error message. If not, the problem almost certainly lies with Roblox Corporation and not the user. The best course of action here is simply to wait a while and try again later. Still not working after that? Assuming that the Roblox Status page doesn’t list any problems, consider contacting Roblox Support.

For more on Roblox, find out how to play Squid Game in-game. If Squid Game or Fish Game won’t launch, here’s how to fix the issue.