How to resolve this problem when downloading an update

Troubleshooting steps for Starcraft: Remastered performance problems

I have more than one Warcraft III: Reign of Chaos key claimed on the same Battle.net account.

Information on what to do if you receive an error message saying you are online with your own key in Diablo II (2000).

Instructions on getting Blizzard games to play on your TV.

Information regarding not receiving the Pharah Carbon Fiber Skin and Gibraltar Jet Souvenir from the Overwatch 2 Xbox promotion.

Troubleshooting network problems in Overwatch.

This error means the Battle.net Agent (the process that installs and patches our games) couldn't stream necessary files.

Troubleshooting steps for Diablo II (2000) error "Your CD Key is currently being used by: Claimed on Battle.net."

Troubleshooting the error message "The code you entered cannot be claimed."