Updated: 1 year ago
Article ID: 161074

Common Problems

We couldn't verify the digital signature of your Agent. Follow the steps in this support article to fix this issue.
Error Code: BLZBNTBNA0000000C

This error occurs when the Blizzard desktop application can't recognize its digital certificates. Usually this will happen if the application has become corrupted. To troubleshoot this issue, follow the steps below.

  1. Restart your computer and try again
  2. Uninstalling and reinstalling the App may resolve rare launcher issues.
  3. Configure your security software's exception list to allow Blizzard applications to run.
  4. Update your drivers and operating system to resolve any compatibility issues.
  5. Try creating a new administrator account to resolve permissions issues.
Advanced Troubleshooting
In a small number of cases you may need to manually reinstall your digicert SSL certificates. To do this, follow the steps below.
  1. Go to
  2. Find DigiCert Assured ID Root CA under the Root Certificates section and click Download DER/CRT
  3. Double-click DigiCertAssuredIDRootCA.crt and click Open
  4. Click Install Certificate...
  5. Select Local Machine and click Next
    Note: If a User Account Control dialog box pops up, click Yes
  6. Select Place all certificates in the following store and click Browse
  7. Select Trusted Root Certification Authorities and click OK
  8. Click Next
  9. Click Finish

Tried everything here?

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