I bet I know what wrong, and from your last line I think you suspect it too Bill.
David,
By all means give Tim Ring a call as suggested by Bill however if your absolutely sure you've allowed the installer access to the internet through the firewall, set NOD32 to allow the installer to do whatever it wanted and were also running the installer as Administrator (Right click, Run as Administrator) then it's highly possible you suffer from the CGNAT problem. We can test for that problem if you want to. Simply download the UDP Test tool here at RPUG (
https://rpug.pdc.ca/index.php/topic,706.0.html) and run the tests. Read the linked posts on the UDP Test tool page on Getting to know the software and Running tests to familiarise yourself with the tool and how it operates.
If you do have the CGNAT problem then not a whole lot can be done about it that isn't a pain in the you know what. You'll basically have two choices; wait for Tim Ring to fix the issue (it's on his end) which he's apparently going to do "sometime" this year, or ask (and probably pay for) a public IP address from your ISP. A workaround was written that tested well but it got shelved due to a combination of lack of interest from users with the problem and the amount of work required to finish it.
- Tim (not from Ring Engineering!)