My Book Duo will not back up Server 2016

I had an older my 12 GB book duo Raid 1 backing up my server 2016 running VMWare, Harddrive crashed, so I bought a new 8 GB My Book Duo, latest Model. I can not get Server 2016 Backup to backup to this drive, I have tried Raid 0, Raid 1 and had my IT guy work on it, nothing seems to work. I have read on some other forums that other brand DUO type drives are not compatible with Server 2016. Anybody have any ideas?

My Book Duo is a direct attached storage device and can be used as a plug n play. But if you want to access or store data over the network, I would recommend to use Network Hard drives such as WD My Cloud.