First I'd like to say that I'm a huge fan of this website. It's helped me so many times that I couldn't count them right now. This is, unfortunately, the first post I've had to make where I couldn't find the solution already discussed.
A little background. I recently did a clean Windows XP Professional install on my family's Dell Dimension 8300 desktop computer. The installation of the operating system went well, however, when completed, the network was acting funny.
We have a Linksys WRT54G Wireless Router that we use in the house to keep our laptops connected, however, we hardwire our desktop (problem computer) to the router since it doesn't have wireless capabilities. Now, since the install, the networking card works flawlessly when plugging the cable from the wall directly into the computer. However, since we require a wireless connection for the rest of the laptops in the house, we need to be able to plug the cable from the wall to the router, then from the router to the computer. Essentially giving wired internet to the desktop and wireless internet to the laptops. However, the desktop reads "Limited to No Connectivity" when going through the router.
I ran diagnostic tools and found that it seems that the computer is unable to communicate with the DHCP server running on the router. No other computers, when connected via wire, has a problem so I've narrowed it down to some type of setting on the desktop that is preventing the computer from receiving an IP from the DHCP server on the router.
I am getting a 169.254.x.x IP address with a subnet mask of 255.255.0.0. I'm running Windows XP Professional SP3. I've already tried resetting the TCP/IP Stack as well as the WINSOCK Catalog; neither worked to fix the problem.
Any help would be greatly appreciated!