Updated: 3 weeks ago
Article ID: 13875
Relevant Games:

Common Problems

You were unable to log in to Blizzard services. If this problem persists, please contact Customer Support.
Error code: BLZBNTBGS80000011

Typically this error is caused by Blizzard services being in maintenance, however in some cases it can be caused by connection issues.

Before trying any of the following steps check the BlizzardCS Twitter. If you're experiencing connection or login issues with World of Warcraft, check the Realm Status page (EU) / Realm Status page (US). If the service is offline, try again later. If the servers are available, or if your game doesn't have a Service Status page, continue troubleshooting.

If these error codes occur outside of maintenance, follow these troubleshooting steps to resolve the issue.

  1. Reset your network devices to make sure your router hasn't become flooded with data.
  2. If you're using a wireless connection, optimize your internet connection to rule out a connection issue.
  3. Release and renew your IP and flush your DNS to resolve any network conflicts.
  4. Disable or temporarily uninstall any security programs, which may mistakenly identify the login module as a security threat.
  5. Try closing background applications to resolve any software conflicts.
  6. Update your drivers to resolve any compatibility issues.

Tried everything here?

If the steps above did not resolve your problem, visit our Technical Support forum or contact us.