NetWorker: Disaster Recovery backup produces errors in the same policy with granular Active Directory backup

Summary: NetWorker Disaster Recovery backup produces errors in the same policy with granular Active Directory backup.

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Symptoms

A Microsoft Active Directory host is configured as two separate NetWorker clients:

  • One is configured using standard NetWorker client software and contains DISASTER_RECOVER:\ save set (or save set ALL).
  • One is configured as a NetWorker Module for Microsoft client and performs nsradsave backups of Active Directory.

Both clients set to run in the protection group and are scheduled to backup in the same policy.
The backup of the traditional client reports as successful but the following error is observed in the workflow log:

An invalid dn syntax has been specified. A valid object must be specified. The specified object does not exist: WINDOWS ROLES AND FEATURES:\

No error is observed when the traditional client resource is backed up separately from the NMM AD client,

Cause

This is expected behavior. The NMM AD client backup and the file system backup (includes DISASTER_RECOVERY:\ save set) should not be backed up simultaneously.

Resolution

Configure the client protection (file system backup) and NMM (AD backup) to perform in separate groups, scheduled to run separately from each other.

Affected Products

NetWorker
Article Properties
Article Number: 000194127
Article Type: Solution
Last Modified: 06 Jan 2026
Version:  1
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