I have a strange problem with network connection. There are seven computers connected in small network over router. Six are working fine but on one computer I have continuous network cable unplugged error message. I tried few things to configure but I was not successful. It would be nice if you have some ideas about this issue.
You can try several things. Check if network cable is firmly attached on both sides. Check your network adapter and see if it is working properly. If necessary, put another network card that you know it is working in troublesome computer. Change the link speed in device manager from Auto detect to 100MB Full Duplex. This would be all possible steps to find malfunction.