I have prepared our AD with the correct setup switches and all were successful. Now I have tried to install my 1st Exchange 2007 server in our existing Org and it fails with the following error:
Setup encountered a problem while validating the state of Active Directory: Exchange organization-level objects have not been created, and setup cannot create them because the local computer is not in the same domain and site as the schema master. Run setup with the /prepareAD parameter on a computer in the domain ADMSFZN and site ZO, and wait for replication to complete."
My problem is the following, I have already prepared the Forest with this command.