For the most part Roblox works pretty well, but sometimes you get errors like ‘Failed to Download or Apply Critical Settings.’ Figuring out the problem is a bit of a head-scratcher.

Reboot your computer. Run your Roblox game again and check if the Teleport Failed error is still there. Fix #5: Whitelist Roblox in your firewall settings.

If Roblox is not downloading or installing on your Windows 11/10 PC, restart your PC and if that doesn't help, use the fixes discussed here.

If you get the Failed to create directory message with error=3 when starting Roblox on your Windows PC, use these proven fixes.

To fix this you will need to uninstall the game then download an updated version from the Microsoft Store. After performing the steps listed above you will successfully fix the Roblox error code 279.