Windows 7 laptop may have been hit with a virus that caused damage, but cannot figure this out: we have a laptop that can connect to the router & ping public IP addresses, but cannot display anything as far as web pages or ping other network computers by host name. Here's what I tried:
Uninstalling / reinstalling the WiFi drivers
Factory resetting the router
Manually setting the laptops IP settings and DNS settings
Checking the host file
Nothing works. Is there anything else?