I was wondering if anyone had any ideas for this strange problem. a windows xp computer with service pack 2 can ping any web site, browse the LAN and transfer large files just fine. but internet explorer nor firefox can web browse. Also, Antivir, the antivirus program cannot update, and neither can Ad-aware. I've tried so many things I can't even remember all of them. I've tried reseting winsock in netsh, flushing the DNS cache. uninstalling the network adapter and installing it again, different drivers, but still no go. Anyone have any ideas?