New
#21
Sorry everybody, it's been a hectic few days. Got things working and was very happy to cancel the appointment with RoadRunner & not have to waste a beautiful day waiting for them to appear! Found advice similar to chev65's, completely uninstalled and rebooted the Asus router, shut off the modem a while, re-entered the OpenDNS addresses and everything seems to be working fine now for all 3 laptops. Since I'd had the problem when connected directly to the modem, never thought about the router being part of the problem so I'm still not certain about the origin of the problem.
Was tempted to return to the original DNS settings and keep the appointment with RR just to see what their solution was or if they even would have one, but like I said, the weather here Sunday was perfect, sunny & 80+, and my bike was begging to go out and play.