Configuring Active Sync

If the Search Child Domains resource parameter is NOT selected, the LDAP Hostname must be configured to specify the hostname of a specific Domain Controller, because Active Sync must always connect to the same Domain Controller. If the Search Child Domains option is selected, then the Global Catalog Hostname must be set to a specific Global Catalog server.

See Chapter 53, Active Directory Synchronization Failover for information about limiting the number of repeated events that occur when you switch to a new domain controller.