NetWorker: Server deployment on a domain controller is not supported

Summary: Installing the NetWorker Server on a domain controller is not supported. This configuration leads to port conflicts that prevent the NetWorker service dispatcher from functioning correctly. ...

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Symptoms

  • NetWorker Server fails to operate when installed on a domain controller.
  • Service dispatcher does not start or function as expected.
  • Backup operations may fail or be unable to initiate.

Cause

The NetWorker service dispatcher uses port 88, which is also reserved for Kerberos authentication — a core component of domain controller operations. This port conflict prevents the NetWorker dispatcher from functioning properly, resulting in service failures. 

Resolution

Do not deploy the NetWorker Server on a domain controller.
Install the NetWorker Server on a dedicated system that is not configured as a domain controller to avoid port conflicts and ensure reliable operation. 

Affected Products

NetWorker
Article Properties
Article Number: 000378292
Article Type: Solution
Last Modified: 21 Oct 2025
Version:  1
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