Thanks for the quick reply. The modem/router is pointed to OpenDNS (if by that you mean that it is pointing to the OpenDNS nameservers). I also changed the DNS settings in the network adapter to the same values, thinking that it might help. The IP address is current - according to the OpenDNS Updater ver 2.2.1 and the dashboard. I DO have a dynamic IP address. And the Netgear was also a modem/router (VVG2000) and the G225 is the only device between the phone line and the network.
I notice, however, that the IP address of the network in the Domains report at the top of the page where it says Domains for [name of network: IP address] is not the one that shows up on the OpenDNS updater and at the top of the dashboard. I just went in and added the current IP address, but shouldn't this update automatically?
I ran the diagnostics and the results are at https://diagnostic.opendns.com/d/5658803896844288
Thanks.
[added a day later]: After updating the IP address, it SEEMS to be working just fine.