I'm running Vista, and perhaps that explains why I don't see the Listening Ports option in the Resource Monitor/Network menu selection. I'm not quite sure where to look for the "Listening Ports".

 

Quote - Run Task Manager.

In the Performance Tab, click the button "Resource Monitor..."

In the Resource Monitor that appears, click the "Network" tab.

Open the section called "Listening Ports".

Click on the "Port" column to sort it.

Scroll down looking for numbers beginning with 11, such as 11530, 11630.

Do you see this or something else?

TCP ports 11530 and 11630 should be open to Poser.exe or PoserPro.exe with Firewall Status = Allowed, not restricted