Ensure that you have specified the correct user ID and password for the operation. Please sign in to the Windows Azure Backup ...

Ensure that you have specified the correct user ID and password for the operation. Please sign in to the Windows Azure Backup portal and verify that your subscription to the Windows Azure Backup is active and that the user ID specified during server registration has been assigned the Global administrator role. Once the service status and user ID role have been confirmed to be correct, try to register the server again. If the issue persists, contact Microsoft Support.