Hi galfert,
First off I am not very IT knowledgeable so I will try and answer as best as I can.
Davis had walked me through this utility today and could not find the mac address.
The computer is HP ENvy 360 x 64. Wifi 5G
I have a couple of laptops on the Telstra 5G network which all seam to be working OK we also have other device Foxtel etc working OK.
The router is NBN.
Laptop Port 10.0.0.1
Regards
Stuart