Log in with Blizzard allows third-party sites and apps to extend the Blizzard experience and leverage Blizzard Services.
The login servers received invalid information
Troubleshooting steps to help you connect to the Blizzard Battle.net desktop app.
Information and troubleshooting on error BLZBNTBNA00000005
Information on retrieving a locked account.
Information on Blizzard Phone Notifications
Troubleshooting errors when trying to sign in to our forums
Use the steps below to troubleshoot installation issues for Blizzard games.
Information on the Blizzard Authenticator
How to change the country / region of residence on a Blizzard account.