I am working with a Dell laptop N5030 Win 7, this problem just started recently and is driving me nuts. It will hook up to my WiFi just fine but not the internet. 3 other computers on the same network can access the internet. I did try downloading an updated driver from Dell off another computer via thumb drive with no luck. It worked fine a week before, never any trouble. Did all the normal steps, Clean and Defrag, ran a Virus Scan, tried to restore to an earlier date but would not restore. If I go into Device Manager, it shows Network Connections just fine. Below that is Other Devices with Ethernet Controller under that with a yellow eclamation point. If I click on it, it says device is not installed. I tried doing a ping test in command prompt, no luck, tried resetting the TCP/IP but tells me I need to switch to administrator, there is only one user. I went into Internet Options and it is set for Broadband connections but will not allow me to make any changes. Any help would be appreciated.