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NT4 domain users unable to access resource on Windows 2003 domain

Posted on 2009-07-07
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Last Modified: 2013-12-28
Hi,

We have 2 domains in our organization, one NT4 and one 2003. I created a one way trust relationship, Windows 2003 trust NT4. The trust relationship validation was OK in the AD domains and trust utility. For testing purpose, I assigned read permission for one of the NT4 user account for a folder on one of the file servers in the 2003 domain. Everything seemed to be working OK until this point. When I logon to the NT4 domain with an Windows XP machine and tried mapping a drive with the folder that I granted permission to the NT4 users, it always complained that the mapped network drive could not be created because the following error: An expected error has occurred. I tried logging on to the XP locally, instead of the domain, and mapped the same with the NT4 credential, I would get the same error. However, I mapped successfully if I provide the Windows 2003 credential instead. It looked to me there was some authentication problem between the Windows 2003 DC and the NT4 DC.

Anyone has any idea? Thanks in advance
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Question by:lineonecorp
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Expert Comment

by:jasin00
ID: 24794638
is your AD mixed mode or naitive? NT really? time to upgrade, i would agree your having authentication issues. what level of sp is your NT server on?
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Author Comment

by:lineonecorp
ID: 24795453
We are actually in the migration process. I would like to allow some of the NT users to be able to access the resource on the 2003 domain during the migration, don't want to do the on time switch. NT4 is in SP6a, I believe and AD is on 2003 domain functional level and 2000 forest functional level.
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Accepted Solution

by:
lineonecorp earned 0 total points
ID: 24796143
I figured what the problem is. In order to allow access to the resource on the file server, not only I have to assign NTFS permission for the NT user account, but also gave them allow to authenticate right on the file server. It works after I made that change.
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