@dcdewick Update I have put my two adapters side-by-side on a double mains outlet. I connect one to my laptop with an ethernet cable and run tpPLC. It sees the adapter it's connected to. I try to add...

I am experiencing problems with two of the adapters in the kit. One has ceased working, and I am now unable to get it to connect from any mains outlet in the house. I have only a single mains...