| FAQ | If your wired or wireless (yes, wireless) network is not functioning properly, you may see "A Network Cable Is Unplugged" messages appear repeatedly on the Windows desktop. Learn more about this problem and how to stop these annoying messages from occuring.
→ How to Enable or Disable Network Connections in Windows XP
→ How to Enable or Disable Network Connections in Windows XP


The fix found in this site worked perfectly:
http://en.kioskea.net/forum/affich-100254-network-cable-unplugged-but-isn-t
* Media State Disconnected
* Ethernet Cable unplugged
I have had the same problem and spent days scouring Google and trying any suggestion that I could find. Last night I found a post from 2002. It seemed ridiculous but I gave it a shot. PROBLEM SOLVED.
1.) Shut dowm your PC.
2.) Unplug the power cord.
3.) If you have a laptop, remove the battery as well.
4.) Walk away from the problem for at least 30 minutes.
5.) When you return, reconnect battery and power cord.
5.) Start as usual.
6.) If this solves the problem, take 20 minutes and post this to all of those message boards that you didn’t find the solution to.
This fix appears to work for any OS/MOBO/NIC.
What causes it? I don’t know.
Have a great day!
Cant believe this simple solution worked for me too!