Solved: Is it Vista or Norton that's preventing me from getting to the Internet?

My first warning that something was wrong came two weeks ago. Everything was fine with my Sony Vaio notebook until I got my first Microsoft Vista update, then network connectivity got hosed. I used system restore to put things back and then installed the Vista update with Norton disabled. Life was once again good.

Foolishly, I forgot to change the flag that would prevent any more auto updates to run without notification. The next one came down the pipe, and after the machine rebooted, Internet connectivity (even within my home network) shot craps. This time system restore couldn't fix it. I've tried that and get a message saying that the restore point is damaged.

So the Vaio works fine in every respect except for connecting to the network. I have excellent signal from the router and ethernet wire, but get "page not found" whenever I bring up Explorer. Safari gets the same frustrating result. I've uninstalled Norton, on the assumption that that was hosing things, however it didn't fix things. And Sony's diagnostics (and almost every other diagnostic) needs network connection to do any good. The usual repair connection that Vista offers doesn't help either.

Does anyone have any ideas that I can try?

 

Can you run "ipconfig /all" from the command prompt and let us see how the network is configured?