The Roblox server is being serviced or will be unavailable. You're connected to the internet via a VPN. The Roblox cache folder is corrupted. Your current DNS server is unreliable.

While Roblox is not completely down, it seems to be experiencing server issues hindering a few functions on the platform.

That said, checking the current status of Roblox server is highly recommended before troubleshooting.

Roblox stores cache data to allow faster access and enhance user experience. However, an unexpected system crash or malware attack can corrupt the cache folder.

Here's how to fix Roblox error code 277 (Disconnection Error) and 901 (Authentication Error) on Windows 11/10 PC or Xbox One.