I have XP Pro, and yesterday sp2 came up in the updates list, so I promptly installed it. After restart it recognised I have NIS2004 installed, but nagged that I have automatic updates off, but I prefer to update myself.
Anyways, tried to updated today, and as soon as it starts searching for new updates, my LAN icon disconnects and reconnects continually, and the IE cant find url page comes up.
I changed the setting to allow automatic updates, but then it starts continually disconnecting / connecting again.
If I have the network connection details panel open, all the details (IP etc) disappear!
I have D-Link ethernet modem, and EPoX 8RDA+ with onboard LAN!