Did you set your network card to IP specified in ReadMe.txt?

I also found useful to disable other network providers like Firewire and WiFi. I created separate hardware profile on my laptop to use with DIS. I left main network card and VM provider only

After you done that open DIS, go to set connection.

Then connect head to diag port which will power it up. I found that in order to set connection I have to run software first and then power up head and it will detect it. It may take like 30 second for head to appear on list.