I have Windows 7 pro. For some unknown reason, I cannot browse my network. It just started one day. Nothing was done to the pc, no new device or software. When I open Network, I see my pc listed, but there is a message at the top of the windows stating "This computer is not connected to a network. Click to connect". I can get to the internet fine. I can navigate to other pcs in my Workgroup via UNC. Other pcs on my workgroup can see this pc fine. If I click on the message and select "Connect to a network", it opens a small window that says "Not connected. No connections are available." Two options: Troubleshoot or open Network and Sharing center. (see attached jpg for screenshot). I've tried removing and reinstalling the NIC with updated drivers. Any ideas?