Finally, restart your computer and try to run Roblox again. Fix #5: Run Roblox in Compatibility Mode. If you’re using an older version of Windows, you may be having a compatibility issue with ...

In this Roblox Error Code 529 guide, we'll talk you through what the error means and how you can try and fix it on your end.

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