You have attempted to connect to an invalid server. If this problem persists, please contact Customer Support.
What to do if you internet service provider (ISP) is encountering connection issues.
We're having trouble starting the Battle.net desktop app. Please try again. If the problem persists, try restarting your computer.
This error occurs when you have connected to our patch server but you cannot download patch information.
Troubleshooting steps for this StarCraft II error.