Cannot see trusted domain in login screen

Hi Experts,

I have a two-way transitive forest trust between two Windows 2003 forests.

My forest has one domain (A), the other has two (B and C).

I can login to domain B from a machine that is a member of domain A, but domain C does not appear in the drop-down list of domains when logging in to windows.

I can connect to both domains B and C in AD Users and Computers and browse the OUs. I can also add users from B and C to ACLs for files and folders in domain A, and add users from B and C in to security groups in domain A.

So it seems the only functionality I'm missing is the ability to login to domain C from a machine in domain A.

Since this is a transitive trust I expect this to work, but what could be the problem and where do I begin troubleshooting.

Who is Participating?
Mike KlineConnect With a Mentor Commented:
What you are seeing is normal behavior.   If you had a direct trust you would see the domain in the drop down.  

You should still be able to use the UPN to login though.


Darius GhassemCommented:
Is there a direct trust setup to Domain A from Domain C?
failedAuthor Commented:
No other trust has been configured other than the transitive forest between A and B.
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Darius GhassemConnect With a Mentor Commented:
Correct that is what I was getting at there is not a direct trust setup between A and C
Mike KlineCommented:
Just searched the activedir archives too.

Good discussion with Tony and Guido (two top guys)


failedAuthor Commented:
Great answers, thanks very much for helping me understand the way this type of trust works.

I don't think I'll actually need users to login to domain C from an A machine, but I was just making sure my trust was working normally. They can use the UPN in the rare cases that its needed...I don't think I'll create another trust.

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