We're having trouble starting the Battle.net desktop app. Please try again. If the problem persists, try restarting your computer.
Performing a scan of your computer's physical memory can help identify possible errors.
This error occurs when you have connected to our patch server but you cannot download patch information.
Troubleshooting steps for disconnection problems with the Battle.net mobile app
This error means the Battle.net Agent (the process that installs and patches our games) couldn't stream necessary files.