I've tried again and this time decided NOT to disable Windows Firewall after the install. Now the network can be seen properly. WTH? Why would more protection (Windows Firewall running as well) cause it to work? I don't get it. I would have thought the smart thing to do would be to disable Windows Firewall with Comodo installed?
I wanted to go with just Windows Firewall, but when you check out those various sites to see how well you are protected, well, it's not great with just Windows Firewall. With Comodo installed, I received "stealth" mode just about every test I tried. Feel much more protected that way.