Troubleshooting steps for disconnection problems with the Blizzard mobile app
Troubleshooting steps for performance-related problems.
Troubleshooting step for connection-related problems on Windows.
Troubleshooting the BLZBNTBGS80000011 error.
How to remove your Blizzard Authenticator
Information about troubleshooting problems with the Blizzard Battle.net friends list
Information on error BLZBNTBNA00000A8D.
Information on error BLZBNTAGT00000BB8
Information on error BLZBNTBTS0000005D
How to receive technical support for problems connecting to Black Ops 4