Windows XP Home, Celeron 1100, 512MB., 80GB, onboard RTL8139 network card. The system cannot obtain an IP or DNS server address, even though TCP/IP properties are set to do it auto, and DHCP is enabled. I uninstalled the RTL8139 and reinstalled it with no luck. I changed the network cable to a known working cable. I use a Buffalo router and other computers can use the internet. I formatted the hard disk and reinstalled WinXP, but no difference. Any suggestions please?
