We have 3 domains in our forest, the majority of users, computers, servers, and applications are installed in one of the child domains. OCS Forest Prep creates all of the RTC* groups in the Root domain. My issue comes when I try to install a Group Chat server in the child domain. At the end of the Server Configuration Wizard, I get an error "Group 'RTCComponentUniversalServices' is not found in Active Directory." I have verified that the group does exist in the root domain. All other parts of OCS 2007 R2 are functioning perfectly.
Plz check the ports between cdc and dc i think the ports are stopping communication between ur cdc to dc. also try to reset the password of the RTCComponenetUniversalServices from the active directory.
OCS2007 R2 Group Chat install issue
