Jul 6, 2011
I have AT&T U-Verse with a 2Wire (3801 HGV) router. I've had the service for about a month without any issues. As of now, I am able to connect to the internet using WiFi (via my Wii, iPhone, and Laptop), but when trying to make a WIRED connection (via ethernet cable from the 2wire router directly to the PC), all I get is a yellow icon.
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If I unplug the ethernet cable and plug it back it, the blue circle appears for a while, then back to the yellow error icon. In the Network and Sharing Center, I am showing my PC with a broken connection (yellow triangle) to "Unidentified Network with a broken "red X" connection the Internet. I thought maybe it was the ethernet cable, so I tried a wired connection from the router to my laptop (also running Windows 7) and it works just fine, so I've determined it must have something to do with the PC itself.
I've tried doing a system rollback, resetting the router itself, made sure the network driver on the PC was up to date and ran the test to make sure it's working properly.....all with no luck. I've tried using Windows to diagnose the problem and I get "Problems Found: Local Area Connection doesn't have a valid IP configuration". What baffles me is it was working fine up until a few days ago.