I have a XP home SP3 PC that had an LSP infection. Used MBAM to clean it and now networking is messed up. (I'm VERY sure that the PC is clean now, except for this one thing) I'm sure the NIC is good b/c I booted w/ a PE disc and it's fine, also plugged in a trendnet usb nic and got the same symptoms:
-NIC gets a link, but DHCP doesn't work.
-If I statically assign an IP and everything, I can ping out to the internet but can't resolve hostnames.
-netdiag test fails with a "Failed to get UDP packet size information..." etc etc message.
- using the procedure for SP2+ to reset the winsock, it doesn't work. I tried it all manually and with LSPfix program.
-LSPfix mentions lsp.dll in the "REMOVE" column of the program but allowing lspfix to fix it does nothing
- I used msinfo32 per mskb article and it DOES have more than 10 sections listed, meaning there is a third party lsp installed.
-Did everything here: http://support.microsoft.com/?kbid=811259
("How to determine and to recover from Winsock2 corruption in Windows Server 2003, in Windows XP, and in Windows Vista") to no avail.
One WEIRD clue, maybe is that when I list ipconfig /all, it has 2 lines for IP Address. The first is the static IP I assigned and the second one shows up a few lines farther down, before the DNS IPs and it is BLANK. The PC thinks it should have 2 IP addresses for one NIC?
Anything else to try short of nuking the whole damn thing?