Thanks Oat, you're quick - I think you replied in the first minute before I took it down to edit it (I just put it back up again, maybe it stays up while it's being edited, not sure).
So unless I hear differently I'm going to operate on the assumption that that Firewall capture shows my RDC...
Thanks for the reply. Unfortunately, not understanding PC intricacies, I'd like to see for myself RDC is off to the outside world. I understand if I remote connect to a PC over the internet my session can be hijacked and by choosing to not remotely connect I can prevent that. But, people...
I read that Remote Desktop Connection (RDC) has security issues, including concerns about leaving port 3389 open to the world. I didn't want to harden RDC, don't need it, so turned it off first at Settings/System/Remote Desktop. Then I ensured Control Panel/Advanced System Settings/Remote tab...