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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: <a href="http://technet.microsoft.com/en-us/library/cc731654(WS.10).aspx" rel="ugc">http://technet.microsoft.com/en-us/library/cc731654(WS.10).aspx</a>
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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 [http://technet.microsoft.com/en-us/library/cc731654(WS.10).aspx]

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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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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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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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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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We have a outdated system (windows server NT 4.0) on our network and it has been connecting to a 2003 server DC and it works for logging in.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?
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We have a outdated system (windows server NT 4.0) on our network and it has been connecting to a 2003 server DC and it works for logging in.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?

Need to connect a NT 4.0 server to a 2008 DC

The Microsoft Server topic includes all of the legacy versions of the operating system, including the Windows NT 3.1, NT 3.5, NT 4.0 and Windows 2000 and Windows Home Server versions.