Hog4PC ArtNet to Capture Argo on a Mac

My Touch PC has a network adaptor and a Wifi network device.
I am trying to get the Hog4PC to output ArtNet to a mac running Capture Argo. I should point out that I have succesfully connected many flavours of Hog4 to the mac over the last 2 years. No problems there.
When I configure the network adaptor to HogNet or ArtNet both HogNet and FixtureNet display the same IP's. etc in the Hog Control Panel. Can this be correct?

Is there a step by step guide to setting up either ArtNet, HogNet or better yet, both on an out of the box PC? It's been a while as I have been on mac for many years.
I would also be very grateful for any help in setting up the PC to run efficiently as a standalone Hog4PC. It's currently running Windows 7.
Should I stick with 7 or upgrade to 8 or 10?

Any help appreciated.
D