I have a generation 1 VM running on a windows server 2012 r2 machine which has a local vhd attached. I have another vhd stored on a NAS which i need to add to the VM but when i try to add the new hard drive i get the following error "Error applying hard drive changes, Adding the device 'Microsoft:Hyper-V:Virtual Hard Disk' to 'BTRSRV03' failed."
Both the host server and the NAS are on the domain.The domain admin account i'm using on the host has full access to the shared folder on the NAS were the vhd is stored. Also the local machine account has full access to that shared folder on the NAS and i'm trying to add the vhd via the UNC path not through a mapped drive.
Unfortunately i cannot store the vhd which is on the NAS locally because of its size so i need to get this working with the vhd on the NAS.
Any help would be much appreciated.