A newly promoted domain controller may fail to advertise after completion of DCpromo

This article describes an issue where a newly promoted domain controller fails to advertise after completion of DCpromo.

Original product version:  Windows Server 2012 R2
Original KB number:  967336

Symptoms

A newly promoted domain controller may fail to advertise after completion of DCpromo and reboot. This issue is specific to domain controllers participating in domains at functional level where Sysvol is replicated by Distributed Files System Replication (DFSR).

Cause

There's a name resolution or network connectivity issue.

Resolution

To resolve this problem, choose one of the following options:

  1. Resolve any possible name resolution or network connectivity issue that would prevent communication with the defined "Parent Computer"

  2. Modify the following registry to point to an available source domain controller:

    HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\DFSR\Parameters\SysVols\Seeding SysVols\contoso.com

    "Parent Computer"="DC1.contoso.com"

More information

DFSR is a Multi master replication engine used to replicate files and folders for Distributed files system (DFS) structures and optionally the Domain System Volume in functional level domains. Domain controllers using DFSR for sysvol will initially synchronize their Sysvol content after the DCpromo wizard has synchronized Active Directory and the computer is rebooted.

A replica domain controller will attempt to source its sysvol content from the same server that it used to source it domain-naming context from during the Active Directory promotion by reading the "Parent Computer" registry key under: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\DFSR\Parameters\SysVols\Seeding SysVols\domain.com

Note

"Parent Computer" may be set automatically or defined by an administrator during DCpromo.

If the Server defined by the "Parent Computer" becomes unavailable after the reboot, initial synchronization of the sysvol content will be delayed until action to correct the server's availability on the network has been restored.

Errors reported in the DFSR event log:

Source: DFSR

Event ID: 1202

Level: Error

Description:

The DFS Replication service failed to contact domain controller to access configuration information. Replication is stopped. The service will try again during the next configuration polling cycle, which will occur in 60 minutes. This event can be caused by TCP/IP connectivity, firewall, Active Directory Domain Services, or DNS issues.

Source: DFSR

Event ID: 4612

Level: Error

Description:

The DFS Replication service initialized SYSVOL at local path C:\Windows\SYSVOL\domain and is waiting to perform initial replication. The replicated folder will remain in the initial synchronization state until it has replicated with its partner WIN-C0T0SC8MCEF.contoso.com. If the server was in the process of being promoted to a domain controller, the domain controller will not advertise and function as a domain controller until this issue is resolved. This can occur if the specified partner is also in the initial synchronization state, or if sharing violations are encountered on this server or the sync partner. If this event occurred during the migration of SYSVOL from File Replication service (FRS) to DFS Replication, changes will not replicate out until this issue is resolved. This can cause the SYSVOL folder on this server to become out of sync with other domain controllers.

Source: DFSR

Event ID: 4612

Level: Error

Description:

The DFS Replication service initialized SYSVOL at local path C:\Windows\SYSVOL\domain and is waiting to perform initial replication. The replicated folder will remain in the initial synchronization state until it has replicated with its partner DC1.contoso.com. If the server was in the process of being promoted to a domain controller, the domain controller will not advertise and function as a domain controller until this issue is resolved. This can occur if the specified partner is also in the initial synchronization state, or if sharing violations are encountered on this server or the sync partner. If this event occurred during the migration of SYSVOL from File Replication service (FRS) to DFS Replication, changes will not replicate out until this issue is resolved. This can cause the SYSVOL folder on this server to become out of sync with other domain controllers.

Source: DFSR

Event ID: 5008

Level: Error

Description:

The DFS Replication service failed to communicate with partner DC1 for replication group Domain System Volume. This error can occur if the host is unreachable, or if the DFS Replication service is not running on the server. The service will retry the connection periodically.

Additional Information:

Error: 1722 (The RPC server is unavailable.)

Source: DFSR

Event ID: 4614

Level: Warning

Description:

The DFS Replication service initialized SYSVOL at local path C:\Windows\SYSVOL\domain and is waiting to perform initial replication. The replicated folder will remain in the initial synchronization state until it has replicated with its partner DC1.contoso.com. If the server was in the process of being promoted to a domain controller, the domain controller will not advertize and function as a domain controller until this issue is resolved. This can occur if the specified partner is also in the initial synchronization state, or if sharing violations are encountered on this server or the synchronization partner. If this event occurred during the migration of SYSVOL from File Replication service (FRS) to DFS Replication, changes will not replicate out until this issue is resolved. This can cause the SYSVOL folder on this server to become out of sync with other domain controllers.

Additional Information:

Replicated Folder Name: SYSVOL Share

Errors reported in the DFSR debug logs:

ERROR: DownstreamTransport: SetupBinding Failed

Error: The RPC server is unavailable.

References:

Distributed File System Replication FAQ

Additional information on DFSR debug Logging

DCpromo

How to back up and restore the registry in Windows

DNS Server Operations Guide

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