We have two OWA servers runing Exchange 2003 SP2 under W2K3 SP2. As part of the move, we moved one OWA server to a different DMZ. After taht we can access the web interface for logon credential but cannot access the mailbox. After giving the credentials it says "Page cannot be displayed". Turned off user friendly error, it shows "Unspecified error".
The firewall group claims that everything is open between the OWA server DMZ and the Mailbox server subnet. I compared all other configurations with the working one. They are same.
Important: But I tried to see the list of domain controllers under 'Directory Access' tab of the OWA server properties, it shows empty.
Any help is greatly appreciated.