Enable inbound and outbound replication: Run ' repadmin /options ServerName -DISABLE_INBOUND_REPL ' on the affected Domain ...

  1. Enable inbound and outbound replication:
    1. Run 'repadmin /options ServerName -DISABLE_INBOUND_REPL' on the affected Domain Controller.
    2. Run 'repadmin /options ServerName -DISABLE_OUTBOUND_REPL' on the affected Domain Controller.
  2. Create a new replication connection to another Domain Controller:
    1. Open Active Directory Sites and Services: Start menu, point to Administrative Tools, then click Active Directory Sites and Services.
    2. In the console tree, expand Sites, and then expand the site which this DC belongs to.
    3. Expand the Servers container to display the list of servers.
    4. Expand the server object for this DC.
    5. Right click on the NTDS Settings object, and click on New Actove Directory Domain Services Connection...
    6. Select a Server from the list, and click Ok.
  3. How to remove orphaned domains from Active Directory.