This error occurs when your connection to our servers is blocked. This may be caused by a third-party program. Follow the steps below to resolve the issue.
Update your drivers and operating system to resolve any compatibility issues.
Close all other applications to resolve software conflicts and free up resources.
Configure your security software's exception list to allow Blizzard applications to run.
Disable any proxies that may interfere with the login module.
If you're using a wireless connection, optimize your internet connection to rule out a connection issue.
Check your network configuration to find any issues with your firewall, router, or port settings.
- Reset your Windows Firewall to its default settings.
Tried everything here?
If the steps above did not resolve your problem, visit our Technical Support forum or contact us.
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