Network Connection Error

[wm46990]

Does anyone have any ideas on the following problem? The machine is an IBM T40 on a docking station. Randomly, the network connection fails. When moving the network cable from the docking station to the port on the laptop the problem still remains.

C:\>ipconfig/all

Windows IP Configuration

An internal error occurred: A device attached to the system is not functioning.

Please contact Microsoft Product Support Services for further help.

Additional information: Unknown media status code.

C:\>