Kind of a strange issue, and I'm guessing its mostly a windows issue, but thought someone might have a clue.
I have currently set up Cable modem -> NS 5GT -> Cisco 3548 -> PC's
When I am connected to the Cisco, Windows 7 thinks I am connected to a public network, if I connect directly to trust port on NS 5GT it knows it as a private network. I've tried all the stupid settings I could find in W7 to make it a private network. Any ideas?