It is an Arris router from xfinity.
Argh! Thought it was working, then lost connection again.
About 2 feet away.
Yes. It is hard to understand what is happening, but in looking on line, I have seen a lot of similar problems discussed. My mac is wirelessly connected to the network, and my hp printer is wired to the modem. The mac will be connected to the printer from time to time, but just as often, there is no connection, even though both the mac and the printer are on the network.