Anton L.Z. wrote Have you tried change the Channel and Width? Did you try hard reset the modem? Anton, I've done the changes, it is usually within a couple of days that I lose the connection. I will...

Anton,. I return from a vacation this afternoon, I'll try them when I can access the router and report back. Thank you for the suggestions.

Quite easily in fact. Products that only have the 2.4 GHz channel stop working, items with both channels continue working.

It is the 2.4 GHz frequency that constantly stops. The 5 GHz has not had problems. I have them both with the same SSID and password. This has not been a problem with previous routers I have used.

In my instance it is just the 24 GHz frequency. I have the 2.4 and 5 with the same user name and password as I have always had them with previous routers.

In my cases, it is the 2.4 GHz that stops working. I have the 2.4 and 5 with the same user name, which is how I've had a variety of routers since the 5 GHz channel was introduced.