Can't add protocol to workstations

gurnie
gurnie used Ask the Experts™
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Have anyone seen a windows 2000 problem where you can't add the ip protocol?  I have a client who has a series of machines that stop working and after they remove the protocol they can't add it back.  It also is looking at a nt 4.0 server rather than a 2000 to authenicate even though they are on the same subnet.  They also can't do a ipconfig /release /renew, gives a message that permission denied.
 
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Commented:
Log in as admin, uninstall then reinstall.
Commented:
what is the error message when you try to add TCP/IP back?

as for: "It also is looking at a nt 4.0 server rather than a 2000 to authenicate even though they are on the same subnet."

-- this is common.  I'm not sure if it's a bug or by design.  if you have Win2k clients already a member of an NT domain which you then later upgraded the PDC to Win2k AD, the client will continue to authenticate with the NT BDC until the BDC is offline.  If you want your clients to authenticate with the Win2k DC, then temporarily bring the NT 4 DC offline.  After a while (or a reboot of the clients), they will start authenticating with the Win2k DC.

Commented:
additional note:  if you are still in the migration phase and might need to roll back to NT 4 domain, you should leave the clients the way they are (authenticating to NT4 DC).  If you bring down the NT BDC and clients start authenticating with Win2k DC and you need to roll your domain back to NT4, the secure channel on all clients will be broken.  You will then need to reset all of your cleints secure channel.  This becomes a major task if you have a large number of clients.

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Commented:
Matt,
Thanks that is some good information.  
I'll get some more details on the error, this is a little second hand.  I think they have been removing the stack then not able to restore it because of "access denied", then they have to go a subnet running netbeui and login as domain admin.  The local admin account will not allow them to restore the stack.  Also trying to find out why the stack get corrupted in the first place.  Also does does not explain why the ipconfig /release renew does not work.
Thanks

Author

Commented:
Matt,
Thanks that is some good information.  
I'll get some more details on the error, this is a little second hand.  I think they have been removing the stack then not able to restore it because of "access denied", then they have to go a subnet running netbeui and login as domain admin.  The local admin account will not allow them to restore the stack.  Also trying to find out why the stack get corrupted in the first place.  Also does does not explain why the ipconfig /release renew does not work.
Thanks

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