I've been using Windows 7 on both my Dell and HP laptops for several months now with few problems. This morning while using my Dell laptop there was a 3 or 4 second power outage that took down my router and DSL modem, but not my Dell laptop (it was on batteries). After rebooting my modem and router I was unable to reconnect with my Dell machine but was able to connect with my HP laptop (it was't on during the power outage).
I can ping the router and other computers on the LAN but can't ping outside IP addresses. When looking at the network site map I can see a connection between my computer and the router but there is a red X between the router icon and the internet icon. My HP laptop continues to work fine so I'm certain it is not a problem with the router or DSL modem. I've checked TCP/IP setting between both machines and they are identical. There is a new network connection icon named "Wireless Network Connection 2" that is said to be a "Microsoft Virtual WiFi Miniport Adapter" . I read another posting that said to disable this device but that did no good.
What should I try next?