What to do if you internet service provider (ISP) is encountering connection issues.

Blizzard's stance on inappropriate behavior in Blizzard games.

What to do if you receive an error that your code is already claimed in your account.

What to do if the security code sent to your mail or SMS is not allowing you to authenticate your account

What to do if the verification code received via SMS doesn't work

How to report another player

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.

You have been disconnected. (BLZ51901017)

Information on error BLZ51901023