Do you see any error message? Since you can ping and tracert but not
surf, etc. it would appear the problem might be due to a DNS failure of
some sort. What happens if you when the connection has failed you try and
reach Google in Firefox or IE using the address 64.233.167.99 rather than
www.google.com?
--
Mike Maltby



LoneStar wrote:

See below for ref......

Thanks Noel, but I've done as you said befo no help. The problem
is much deeper, since my connectivity only dies "after approximately
15 minutes after bootup" and since the problem is not an Internet
Explorer issue (Windows Media Player will not work after 15 mins, or
Firefox browser, or any other app that uses the Net). But remember,
all is great immediately after bootup or restart!!!! I can go to
many, many sites for about 15 minutes!

I keep thinking TCP/IP configurations, etc, etc, but note that I can
ping and tracert after Internet connectivity is lost. I've looked at
ALL the Microsoft support sites on this, and this particular issue is
not addressed anywhere. Guess it might be time for a reformat and OS
installation!