I have a ForeFront TMG server configured as Hyper-V guest connected to a DMZ VLAN on switch.
The host has 2 nics, one connected to the internal network and another to the external network (DMZ) on the switch. The TMG guest has access to both internal and external nics. The external NIC shows as 'internet access' on the network settings.
I have the firewall NATed correctly, and the ports opened, but when I run a port checker I can't find open port 443 from outside on the IP.
I also cannot load the mobile Lync app and have it connect.
All the certs and DNS settings have been validated by a 3rd party.
Is there something the host computer is doing that may affect this configuration? The host firewalls are off.
TMG server 443 ports listening screen cap (below)