joining a pc to a new domain

Hello, we are moving a client to a completely new domain. The new domain is running on new servers. The domain/active directory is completely empty as well - although we did create new user accounts/mailboxes in the new domain. Today, when I attempted to move one of their PCs to the new domain by changing the domain from the old old domain to the new, it seemed to join the new domain ok but once I reboot and try to login as one of the users on the new domain, i get the following error:

"The trust relationship between the workstation and the primary domain failed.".

What coudl the problem be? I already ran a dcdiag on the domain and it passed everything.

The PC has also already been directed to the new DNS server which is one of the new domain controllers. Please advise. The PC is XP and the DC's are Windows 2003 and 2008.
StarfishTechAsked:
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dattatraykadamConnect With a Mentor Commented:
Logon as an administrator on the local computer, remove the computer from the domain.

Restart and rejoin it to the domain. It should work.
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StarfishTechAuthor Commented:
OK, so just join the PC to a workgroup, reboot and join to the new domain?
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MidnightOneCommented:
Typically, that error between a workstation and the domain means you're in for a bit of work.
On the workstation:
Reset the local admin password so you're cure of what it is
Change the workstation from the domain to a workgroup
Reboot
Log on with the local admin password
Check the DCs to ensure the computer account has been removed; if it hasn't, delete it and wait for replication
Check workstation IP settings to ensure it's pointing to the new domain
Rejoin workstation to domain
Reboot

See if that gets this one through.

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dattatraykadamCommented:
@Starfish Tech: Yes. Thats it.  Just join the PC to a workgroup, reboot and join to the new domain.
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StarfishTechAuthor Commented:
That worked great. I have to do the same thing to a domain controller on the old domain. I want to demote it, and then join it to the new domain but NOT promote it to a dc of the new domain.Does the same principle apply? Do I need to demote the DC, join it to a workgroup and then join it to the new domain?
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dattatraykadamCommented:
If that old DC won't act as a DC in the new domain then you will have to demote the DC, join it to a workgroup and then join it to the new domain.


Regards,
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Dattatray Kadam

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