I am trying the following command:

Add-CMLVolumeAccessPath -SerialNumber 00006718-000000b3   -Server hv-16 -AccessPath  f:

When I run this I get no error or any status. It just returns to the prompt. However it does not add the drive mapping. I am not sure where to turn on this. I have upon rare occasion seen this command work but for the most part it is failing and I am not sure where to look. Any ideas?