Troubleshooting step for connection-related problems on Windows.
Information on linking your Twitch or YouTube account to your Battle.net account.
Instructions on linking your MLG and Blizzard accounts
How to troubleshoot connection issues between Battle.net and Steam
Cannot install or Patch Call of Duty: Black Ops 4
Cannot install or patch Call of Duty: Modern Warfare II
Cannot install or patch Call of Duty: Modern Warfare
Cannot install or patch Call of Duty: Warzone
Troubleshooting game or Battle.net services connection error BLZBNTAGT00000BB8