<anonymous
I had the same problem; I then removed SP2, did system restore, followed
www.careyholzman.com/netfixes step #1 TOO THE LETTER and something in there
solved my problem. I did not D-load the ME file though, as I'm XP/98
Network.
Prior to those steps I used the following process to get a clean slate
(well, partially clean):
Winipcfg on my other machine (Win98): release all, renew all.
Also, I ran msconfig in XP (Start/Run/type in: msconfig, you probably knew
that, but I don't know what you know, trying to be literal/helpful...),
clicked on 'services' tab and disabled IPv6 internet connection firewall,
seemed to help as well.
My third party firewall doesn't seem to bother my network
connections/communications.
Hope it works for you.
I'm feeling adventurous; I may retry SP2, now that I know what to
change/fix.