Updated: 10 months ago
Article ID: 22705

Common Problems

Unable to connect. Please try again later. If the problem persists, please contact technical support.
Error Code: BLZ51900002

The computer couldn't connect to the login server because a security program was blocking the connection, or because the connection was unstable.

  1. Close all other applications to resolve software conflicts and free up resources.
  2. Configure your security software's exception list to allow Blizzard applications to run.
  3. Reset your network devices to make sure your router hasn't become flooded with data.
  4. Release and renew your IP and flush your DNS to resolve any network conflicts.
  5. Run a security scan to remove any viruses or malware infections.

Note: A malware program called Scorpion Saver may cause this error. It's difficult to remove and may not be caught by normal antivirus scans. To identify an infection, gather your MSInfo and check Software Environment -> Loaded Modules for "Adpeak." If it appears on the list, contact a certified computer technician in your area for assistance removing the program.

Tried everything here?

If you have tried these steps and still require assistance, please visit our Technical Support Forums or contact us.