BLZBNTBNA00000A8E

This error is returned by the server and indicates a problem on our end, or that the Battle.net account does not have a BattleTag correctly set.

To resolve this issue:

1. Ensure your Battle.net account has a BattleTag set up in account management
2. Uninstalling and reinstalling the Battle.net App may resolve rare launcher issues.
3. Try creating a new administrator account to resolve permissions issues.
4. Test an alternate network connection to rule out problems with your internet provider.

Tried everything here?

If the previous troubleshooting steps didn't resolve the problem, you can ask the Blizzard player community for help on the tech support forums (if available) or other community gaming sites. Local computer or network technicians may also be able to help if you've exhausted all other resources..