Black Hole
May contain traces of nut
Good point. The "master" HomePlug (they are all the same, but whichever one you designate...) is connected to an Ethernet port on the router, and any other HomePlugs on your mains circuit then communicate with the router through the master HomePlug. The router acts as the intermediary for all communications on your home network, any other arrangement is asking for trouble.What's the other end connected to? Your PC or your router? It should be the latter.
Yes, do that - and copy/paste the whole output into a forum post.Running "ipconfig /all" would be even better.