Finally got back to this. I have Advanced IP Scanner software on my pc, so typed 1.1.1.1 into the address range to search. Up comes "1dot1dot1dot1.cloudflare-dns.com." I search on this, and see that this is some kind of DNS service -- but I'm signed up for Dlink's DNS service. I DO have Dlinkddns.com's info typed in on the Features > Dynamic DNS page for my DIR-882 -- does that have something to do with this?
If I determine that I want to block this - whatever it is -- how do I do that? When I look at the Clients screen, it shows attached clients, says "You can block a device from accessing your network completely," but I don't know how!
Or , alternately -- should I have my Comcast DNS server IP addressed typed in on the 882's Settings > Internet Settings > Advanced page? Because I DO NOT.
thanks...