I would go into the device manager to see if your network adapters are working. Try restarting them by uninstalling and re-installing the adapters.
I a having problems connecting to windows explorer and my live email. After doing a google search for a particular site, it took me to a local survey. When I used the trouble shooter it tell s that I have a broken connection and I should try to reboot my router. Needless to say that this doesn't work but I have many things connected and all still work. First I tried to do a restore, which not only work. But it did not respond to it. Then I tried to do a wired connection, but that is the same. I thought definitely this would work. I am using a anti virus and firewall which I cannot do a scan or a update with and has not expired. Also using OS Window 7. No recent change made or downloads.
Any help would be greatly appreciated!