Demotion of domain controller

hola
Trato de despromover un servidor y me sale este error alguien me puede
ayudar
ya que he intentado con el dcpromo/forceremove y no pasa nada.

Saludos
Antonio Borda


07/22 22:26:59 [INFO] Request for demotion of domain controller
07/22 22:26:59 [INFO] DnsDomainName (NULL)
07/22 22:26:59 [INFO] ServerRole 0
07/22 22:26:59 [INFO] Account gruponuevomundo.com.pe\administrator Options
130
07/22 22:26:59 [INFO] LastDcInDomain TRUE
07/22 22:26:59 [INFO] Start the worker task
07/22 22:26:59 [INFO] Request for demotion returning 0
07/22 22:26:59 [INFO] Reading domain policy from the local machine

07/22 22:26:59 [INFO] Domain gruponuevomundo.com.pe is our parent parent
07/22 22:26:59 [INFO] Searching for a domain controller for the domain
gruponuevomundo.com.pe

07/22 22:27:00 [INFO] Support Dc in gruponuevomundo.com.pe is
ptabrena.gruponuevomundo.com.pe
07/22 22:27:00 [INFO] Located domain controller
ptabrena.gruponuevomundo.com.pe for domain gruponuevomundo.com.pe

07/22 22:27:03 [INFO] Preparing the directory service for demotion

07/22 22:27:03 [INFO] Transferring enterprise wide FSMO roles held locally
to other Domain
Controllers in the enterprise.
07/22 22:27:06 [INFO] Searching for server to replicate off changes
07/22 22:27:09 [INFO] Replicating off local changes to server
ptabrena.gruponuevomundo.com.pe.
07/22 22:27:10 [INFO] Error - The Directory Service failed to replicate off
changes made locally. (8419)
07/22 22:27:10 [ERROR] Failed to prepare the Directory Service for
uninstallation (8419)
07/22 22:27:10 [INFO] The attempted domain controller operation has
completed

07/22 22:27:10 [INFO] DsRolepSetOperationDone returned 0