work properly. If this problem occurs, run Office Communications Server 2007 forest preparation again to restore the missing ACLs, and then run forest preparation for Office Communications Server 2007 R2.
To prepare the forest
1.From the Office Communications Server installation folder or CD, run SetupEE.exe (for Enterprise Edition server consolidated configuration) or SetupSE.exe (for Standard Edition server) to start the deployment tool.
2.Click Prepare Environment.
3.Click Prepare Active Directory.
4.At Prep Forest, click Run.
5.On the Welcome to the Forest Preparation Wizard page, click Next.
6.On the Select Location to Store Global Settings page, do one of the following:
To store settings in the configuration partition, click Configuration partition. This is the recommended location.
To store settings in the System container of the root domain, click System container in the root domain. Select this location only if all sites have very good network connectivity to root domain controllers.
7.On the Location of Universal Groups page, under Domain, select the domain where you want to create the groups used by Office Communications Server, and then click Next.
8.On the SIP domain used for default routing page, select the SIP domain that you want to use for default routing.
Keep the suggested default SIP domain, use the list to select another existing domain as the default SIP domain, or type in a new domain FQDN for the default SIP domain.
9.On the Ready to Prepare Forest page, review your current settings before clicking Next.
10.On the Forest Preparation Wizard has Completed page, click View Log.
11.Under the Action column, expand Forest Prep, look for <Success> Execution Result at the end of each task to verify that forest preparation completed successfully, close the log, and then click Finish.
12.Wait for Active Directory replication to complete, or force replication to all domain controllers listed in the Active Directory Sites and Services snap-in for the forest root domain controller, before running domain preparation. Force replication between the domain controllers in all Active Directory sites to cause replication within the sites to occur within minutes.