I have a WD MyCloud 4TB NAS and funny enough happy with it
However, I also have a WD MyBook 3TB which I can connect with USB3. That seems to work partially. I can read it but I cannot write to it nor I can delete anything from it through the NAS. When I connect the MyBook directly to my PC I can do anything I want.
An automated backup doesnt work either.
What am I doing wrong?