This may have been beaten to death now but if UT is truely in a bridge mode, you shouldn't need an IP address on it except for management. If that is the case, I could change the IP of UT to something in the private range and see if your issues clear up. What is your internet connection. I am going to assume a cable or DSL modem of some sort. What may be happeing is your cable modem sees the IP of your PF box and the MAC of your UT box and somehow not getting the rest of the ARP information.
Curtis LaMasters http://www.curtis-lamasters.com http://www.builtnetworks.com
