Error Message: 3208 - can't read cifs:localhost;vranger@x.x.x.x/vranger/VM_Directory/Savepoint_na (4047930)

Recieving "Error 3208 - Can't read cifs" while doing restore or backup from NAS device based on samba based O/S:

It is possible to copy files/create directories manually from my VRANGER Server to the NAS. During the VRANGER backup the folders get created on the NAS. During backup while refreshing the screen the file size growing. At the point that the backup should complete the file and directories disappear from the NAS and vRanger starts over. It tries twice automatically but fails with the error Error Message: 3208 - can't read cifs

With restore it fails after creating the vM's on the ESX host.

Devices confirmed:

Synology DiskStation, DS1010, RS408-RP Rack Station, RS810+, N7700PRO