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.

If you get Disconnected Error Code 272 on Roblox, Lost Connection due to an error, follow the solutions mentioned in this post to resolve the issue.