Unable to authenticate when attempting to log into Overwatch 2

Please try the steps below to fix the Unable to Authenticate error.

1. Check if you're logging in the wrong region through Battle.net, it could be that the region changed after an update.
2. Check if we're having server maintenance.
3. Clear Battle.net cache
4. Verify the correct SMS phone number is setup on the account.

If the issue persists, please post on the Technical Support forums.