I have a forest trust setup between a 2K8 domain and a 2K3 domain. The trust is working fine and users in domain A are able to access resources in Domain B and vice versa.
However, some of the users are running 2K8 Server R1 as their OS. (There is a plan in place to fix this but not for another month) The users that are on 2K8 R1 and located in Domain B, cannot access a file share in Domain A. All users running XP or Win7, can access the share without issue.
Is there someting in 2k8 R1 that would prevent that? When they try to access the share that gets mapped via a login script, they get access denied. But if they try to access the share via UNC, they can access it without issue.
Also, I have a domain local group in Domain A, and a Global Group in Domain B. The 2K8 users are a part of the global group. Like I said above, the XP users have no issues. The file share that is not accessible is in the 2K3 domain.