Need to connect a NT 4.0 server to a 2008 DC

We have a outdated system (windows server NT 4.0) on our network and it has been connecting to a 2003 server DC and it works for logging in. I need to remove the 2003 DC from our network and use the 2008 DC's I have running. When I shut down the 2003 server I can no longer logon to the NT 4.0 server. how can I get the NT 4 server to authenticate to the other domain controllers?
bankadminAsked:
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Miguel Angel Perez MuñozCommented:
Windows 2008 by default requires SMB packet signing. You must to edit your domain controller security policy to disable SMB packet signing and secure channel signing: http://technet.microsoft.com/en-us/library/cc731654(WS.10).aspx
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bankadminAuthor Commented:
I applied the changes listed in the article you posted. I will be in tomorrow to do some testing. Do you know if I have to do anything to the NT 4 server to get it to point to the 2008 DC after I take down the 2003 DC or should it automatically find it and work?
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Miguel Angel Perez MuñozCommented:
NT4 should find 2008DC using DNS server. Ensure your W2003 DC has not any FSMO roles, in case move to W2008DC: http://www.petri.com/determining_fsmo_role_holders.htm
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bankadminAuthor Commented:
The 2003 does not have any FSMO roles anymore. I will test out the connection between the two servers this weekend.
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