Troubleshooting game or Battle.net services connection error BLZBNTAGT00000BB8

Troubleshooting steps to help you connect to the Battle.net desktop app.

Information on troubleshooting connection and installation issues using another network.

Information on error BLZBNTBNA00000066

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

How to read and analyze WinMTR data in order to track down a potential connection issue.

How to read and analyze Pingplotter data in order to track down a potential connection issue.

Troubleshooting steps for communication and transmission errors.

How to check the linked status of your Twitch account.

How to see if your Microsoft Account and Battle.net Account have been correctly linked for Game Pass