I've previously had occasional disconnects in the past but after I installed SP2, I get disconnected after about 3 min. of use. By disconnect I mean that my IE will not display a web page - it just attempts to connect for about a minute then displays the "the page cannot be displayed" page. No other errors are given. A re-boot of my system will allow me to once again connect - but only for a few minutes.
After my problem appears, I am still able to ping a Yahoo IP address and also ping the url - click here. So, it seems like my system is still connected but IE is not.
i had trouble with a BT business broadband once sp2 was installed, I had the same problem it kept diconnecting after one web page was opened. After trying a mountain of fixes i uninstalled sp2 and all worked fine