Updated: 11 months ago
Article ID: 10753
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Common Problems

Failed to download files from servers.
Error Code: BLZBNTAGT000008A3

The desktop app is unable to download a file required for installation or patching.

  1. Close the desktop app and wait for Agent.exe to disappear from Task Manager before relaunching the desktop app. If the issue persists, restart your computer and try again.
  2. If you're using a wireless connection, optimize your internet connection to rule out a connection issue.
  3. Run the repair tool to repair any damaged game files.
  4. Update or temporarily uninstall any security programs, which may mistakenly identify the login module as a security threat.
  5. Close all other applications to resolve software conflicts and free up resources.
  6. Run a security scan to remove any viruses or malware infections.
Advanced Troubleshooting
  1. Repair Disk Permissions to resolve any permission conflicts with logon modules.
  2. Delete the Tools folder to automatically rebuild outdated or corrupt files.

Tried everything here?

If you have tried these steps and still require assistance, visit our Technical Support Forums (World of Warcraft) (StarCraft II) (Diablo III) (Hearthstone) (Heroes of the Storm) (Overwatch) or contact us.