This doesn't work. After disabling NAT, I couldn't get a connection to the Internet. Worse, I can't even load the Web-based router configuration utility to re-enable NAT. I had to spend the best part of the day fiddling around, booting, rebooting, googling, ...... until finally I did a factory reset of the router and reconfigured it and the wireless adapter.
I'm on Windows XP too, but my problem is that sometimes no IP address is assigned to my computer (as indicated on the Status tab) and I can't do a DHCP renew either from the same page or from the command prompt.
I do hope someone can genuinely help.