Norton internet security 2006 will not allow me to surf the internet?

I have a problem. I am working on a clients computer and it is unable to get on the internet. He stated that about a week ago he was able to get on the internet but now he is unable. While running Norton Internet Security 2006 the internet will not work but if i disable the application I am able to do so. I allowed iexplorer.exe full access to the internet through NIS06 but it still will not work. I also completely uninstall the program and reinstalled it and still cannot get it to work. I also did a system restore for a week back and reinstalled NIS06 and I still have the same problem. Do anybody have any ideas on how to resolve this problem thanx.

Norton internet security 2006 will not allow me to surf the internet?agv

In Nortons I.S. there is an option to block all internet traffic

check that out....see if thats your problem.

Norton internet security 2006 will not allow me to surf the internet?antivirus software

turn off the firewall