When performing the initial backup through the network of an on-premises Windows 2012 R2 Server, I get the message "Job Failed" and "Microsoft Azure Backup encountered an unexpected error. Wait for a few minutes and try the operation again. If the issue persists, contact Microsoft Support. (0x27100)"
I've tried uninstalling / re-installing the Azure Backup agent from the Server along with deleting / re-creating the backup Vault in Azure.
Any ideas?