Problem with Ghost finding my Dlink DNS Storage connected to a wireless router modem

I have just installed Ghost15 but it could not find my DNS external hard drives enclosure.

I have mapped this enclosure sucessfully.

I could read it on window explorer.

It has been given a drive name z:

The enclosure is connected to a wireless router modem and it is working fine as other computers can access to the enclosure wirelessly.

I have also hardward (plugged a data cable) directly into one of the ports of the wireless router from the computer of which Ghost has been installed.

How do i make Ghost see this DNS enclosure?

Thanks

Michael