Authentication unsuccessful: Authentication was unsuccessful due to the following reason:
To register a new device, click 'Register New Device' and log in with your username and password. You must also log in on your existing registered device to complete the authentication.
For security reasons, please confirm your login by entering the 6-digit code from your Authenticator App.
This code refreshes every 30 seconds. If it doesn’t work, wait for the next one and try again.