Network and Sharing Center

Here is one to pick everyone's brain. My network icon started displaying a red x about a week ago. now here's the kicker both my Wired and Wireless still work and if I hover the mouse above the icon it tells me I'm conected to my network. Now if I enter the Network and Sharing Center it tells me my access type is internet and my homegroup is Joined and that I have connection to the internet and that I'm connected by Lan but only through the full map does it tell me Lan Connection. Under Connections there is nothing listed. Also under Change Adapter settings the only item that is currently there is my Bluetooth network. Please help more annoying than anything. And yes the internet works I'm on it right now.

Almost the same thing is happening to me, but in my case, there is not even one adapter showing up. Does anyone have any idea on how to solve this?

I finally fixed the problem but maybe just temp. I did a system restore to the date just before I installed the nvidia 15.51 nforce system drivers and it has work ever since. I think this might be a problem with the Nvidia drivers but I'm not 100% sure. I will keep u updated. 3 Days now and still no problems

I have a Dell Precision Workstation 690 that has a built-in NIC:
Broadcom NetXtreme 57xx Gigabit Controller.
All of a sudden, Network and Sharing Center does not recognize this Broadcom NetXtreme 57xx Gigabit Controller.
However I can still access the Internet.
Using retail build of W7 64-Bit.
Solutions?