The other day I tried to run ipconfig to see what my ip address is, and I got the following error:
C:\Documents and Settings\Administrator>ipconfig

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.
I was surprised because I'm not having any issues with my connectivity, except that I can't network(share drives/folders) with another computer on the network now.

Any ideas as to why this is happening?