@Tony Thanks. I can see a TV that has the same first half MAC address as one of the 3 address I have identified as belonging to the router. There is only one item, a TV on the extender. So the other...

I am cleaning up & indentifying all of the devices on my network. My relatively new TP Link RE220 is confusing me. There is a MAC address on the back of the extender, another as identified by my...