I have an XP SP2 PC that had a bad power supply. When I replaced the power supply, I found I could no longer pull an IP address It would get a private 169 address. I disabled the embeded NIC and tried a add on card. After that didn't work, I tried a usb wireless nic. It found the AP and said it connected, and ask for and accepted my WPA phrase, but I got 0.0.0.0 for an address. To rule out windows I booted from a knoppix disc. I got the same result no connection. Oh, and for the record the router seems fine, I have wired and wireless devices on it with no issues. Any ideas? Thanks.