You may try to use netsh. These links may help,
Vista Troubleshooting ToolsVista Troubleshooting Tools. Many Vista issues can be fixed by using netsh ... You may try to netsh winsock reset command to reset the winsock. ...
Vista: Wireless troubleshooting Tools.How to use netsh command to troubleshoot Vista wireless ... Netsh wlan is also a useful tool for troubleshooting wireless connectivity problems. ...
Bob Lin, MS-MVP, MCSE & CNE
Networking, Internet, Routing, VPN Troubleshooting on http://www.ChicagoTech.net
How to Setup Windows, Network, VPN & Remote Access on http://www.HowToNetworking.com
"Wizard" <Wizard@discussions.microsoft.com> wrote in message news:91165A36-D456-4919-8443-16004FAAFA88@microsoft.com...
The problem is the following. After some time some of the programs lose their
Internet connection. Skype and ICQ are still running and connected while IE
of Firefox cannot display any web page. Vista says that it i connected, my
computer have ip address. I've tried to repair the connection but does not
change anything. After restart everything is fine again for next few hours
and so on.