Let your NIC take a "bridged" network connection ( Connected directly to the physical network), and be sure that it is with the same subnetwork that you already have.
The VM NIC is connected to the virtual network switch created in hyper-v. How can I connect the NIC directly to the physical network?

Also be sure that there is no conflict IP (doublicated IPs).
There's no IP conflict...

And when you are tryingto browse the DSS, are you trying that from an O.S. that also created virtually or by the O.S. on your machine that host the Virtual machines?
I'm trying to browse the DSS from my own PC, that he can access to the VM.

Thank you very much!

Vito