I had a WRT54G V1.1, and was happily forwarding ports to the internet for my web server. Upgraded firmware to 4.20.6, and it no longer allows port forwarding (nor DMZ) out to the internet. Everything looks fine on the local wireless network. Bought a new WRT54G v4 (same firmware, 4.20.6) and it acts the same. Anyone else using port forwarding or DMZ with this firmware? Been around and around with tech support.