@davcbr Well... I've got the thing going. Some of my difficulty was that this is the first router that I've owned [five previously] that does not list the computers connected by cable like it does...

I have obtained an Archer C3150 router to replace my Assus N900 router which has started to have drop out problems. I plugged my cables in as they were on thye Assus router, and the WiFi works good...