We're having trouble starting the Battle.net desktop app. Please try again. If the problem persists, try restarting your computer.

This error occurs when you have connected to our patch server but you cannot download patch information.

Troubleshooting steps for resolving error BLZBNTBGS000001FF.

What to do when a physical authenticator gets out of sync

More information about authenticator security codes

Information on error BLZBNTAGT0000083F

What to do if you didn't receive Support a Streamer rewards

Information about what to do if you are experiencing reduced performance on the Beta version of the Battle.net Desktop App

Troubleshooting steps for disconnection problems with the Battle.net mobile app

Error emerges when trying to restore the previous auth on a new device