If you face the Authentication Failed, Error Code: 0, An error was encountered during authentication on Roblox; this guide is all you need to fix this error. This ...

As to why you’re getting the error for Roblox, the second half of the error offers a hint: “Please check your internet connection.” While this is good advice ...

To fix the Authentication Failed ... Roblox player, and then logging in may resolve this issue. As you do so, the app recreates new cookies, replacing all the corrupted ones. 4] Clear Roblox Cache ...