This isn't a big problem with my WRT54G (version 2.0, stock linksys firmware v4.30.5), but its an annoying one. If I assign my (wireless) XBOX 360 a static IP, online games that check the router NAT tell me that the NAT is "moderate", or "strict", when they expect it to be "open". It only happens when I've manually assigned the IP. So when I let the router assign the XBOX its on IP address via DHCP, that resolves the gaming problem, but when I play play music from another PC through my xbox 360, I get a different problem. What happens is that after an hour or 2 of streaming music from a computer on the same network through the xbox 360, everything freezes, and I check the xbox network connections, and I find out that router has assigned it a strange IP number, something unlike 192.168.1.x, very strange. I have to restart the xbox to resolve it. So, what I've done is if I'm going to listen to music for a long time, I'll change the IP to static, and if I'm gaming, I'll leave it to DHCP to assign an IP. ---this is just more info, but probably due to a defective range expander-- My other PC's don't seem to have this problem (wired or wireless), other than the fact that I also have a range expander (linksys, WRE54G), that interferes with a PC on the network, thinking that they both have the same IP, when in fact, they don't. The same error (this machine shares an IP with another machine on the network) appears whether I use DHCP or not. When I disconnect the range expander, the PC operates normally. So, I'm looking at tomato to see if the first problem can be resolved. Thanks for providing any input and providing a forum to discuss these linksys issues. I am using WEP (the range expander doesn't support WAP or WPA, or whatever the name is), and a unique broadcasted SSID on channel 6.