Windows IP Configuration An internal error occurred:

I hope someone has an easy solution to this problem:

I have a laptop that is not able to connect to the internet.  It was working one night and the next day it couldn't connect.  The network card is working, but I get the following message when doing an ipconfig:

Windows IP configuration An internal error occurred:  The request is not supported.  Please contact Microsoft Product Support Services for further help.  Additional information:  Unable to query host name.

I have searched support on Microsoft's website and now Dell's.  I can't even remember now all that I have done.  I did a repair on WIndows XP, uninstalled/reinstalled the network card.  I even went into the registry to do suggestions.  The computer as far as I can tell is not getting an ip address.   I even tried putting in a static ip address hoping that this would work, but it didn't.

I would appreciate ANY help with this that anyone may offer.  I can't help but think that there is a solution to this problem without completely redoing the computer.

Thanks,

Nancy