This has me stumped: An XP Home Dell on a LAN suddenly does not get network settings from DHCP. The NIC gets an automatic private address from XP. It had been working fine for months prior to this.
The machine was moved to another LAN with a known working connection to a router providing DHCP.
I replaced the NIC twice, with 2 different brands right out of the box. With the first replacement, the new NIC did the same thing. When the second new NIC went in, it will not install properly (it's a D-Link, and XP reports only that"There was an error installing the new hardware - The specified file could not be found").
I checked for spyware using Ad-Aware and Spybot. I re-installed NAV (due to a seperate problem), updated and scanned for viruses (none found).
I reset TCP/IP using netsh.
I performed a Repair install of XP as a last ditch effort, and to my surprise it did not help the problem.
I need advice on possible causes and solutions. Formatting and re-installing? Please NOOOOO!