Fix Authentication Failed, Error Code: 0, An error was encountered during authentication on Roblox by following the suggestions in this post.

Usually, to update Roblox, you should go to Roblox.com, select the game, and click the Play button to automatically update.

Roblox is one of the few games that anybody, from children to adults, can play at any time. The game is easily accessible online and does not require a paywall to play. That said, it isn't perfect ...