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

Roblox error code 277 means that the Roblox client has lost connection to the game server. this problem can happen on all platforms such as Mobile, Windows 10, Xbox and Playstation.

Recently, fans of Roblox have been hit with connectivity issues, with messages of "connection error" plaguing their games. If you're dealing with the same issue, you're not alone.

How to fix Roblox 277 error? Below are the solutions that you can try if you want to fix Roblox error code 277.