Updated: 3 weeks ago
Article ID: 28100
This error occurs when you have connected to our patch server but you cannot download patch information. Follow the steps below to resolve the issue.
Update your drivers to resolve any compatibility issues.
Try closing background applications to resolve any software conflicts.
Run the Blizzard Battle.net Desktop App in Administrator Mode to address many installation, patching, networking, and start-up errors.
Disable or temporarily uninstall any security programs, which may mistakenly identify the login module as a security threat.
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.
Disable any proxies that may interfere with the login module.
Some networks require 802.1X authentication, which can prevent Blizzard games from connecting. Check for and disconnect 802.1X.
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