I've changed ports and have power cycled the switch while troubleshooting, but I suppose it could be the switch. My setup is as follows. My modem is connected to eth0 with the IP of NS being reserved my MAC and placed in the DMZ to NS is facing the internet. NS is my firewall, dhcp server, DC, etc.. with eth1 then feeding an Asus switch/access point that feeds everything else. When I reinstall tonight I'll remove the Asus from the equation and see. Honestly though I'm not sure that it is the Asus AP/switch because as soon as I remove the bridge from eth1 then connectivity resumes. I encountered the same problem in NS 6.8 when creating a bridge to run virtual machines in the Virtual machine manager. The easy solution was to create a vlan for all virtual machines, bridge the vlan, allow the routing from the vlan to LAN and it worked and was solid.