NetWorker: Fails to Create DD Cloud Tier Device on NMC, Error: SSL Peer Certificate Not OK

Summary: Creating a Cloud Tier (CT) device using NetWorker Management Console (NMC) may fail with an SSL or SSH key validation error. This typically occurs when there is a version mismatch between the Data Domain OS (DDOS) and the DD Boost plugin used by NetWorker. ...

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Symptoms

  • Device creation wizard fails in NetWorker NMC.
  • Error message:
Unable to send a request: SSL peer certificate or SSH remote key was not OK
  • NetWorker logs may show:
Unable to perform authentication for host <hostname>, user <sysadmin>, port <3009>: SSL peer certificate or SSH remote key was not OK.

Cause

The issue is a result of incompatibility between the DD Boost plugin version used by NetWorker and the DDOS version running on the Data Domain system. When these components are not aligned, authentication and secure communication may fail during device creation.

Resolution

Ensure that the DD Boost plugin version used by NetWorker is compatible with the DDOS version on the target Data Domain system.

Recommended Actions:

  • Review the Compatibility Matrix for DD Boost and DDOS versions.*
  • Upgrade DDOS or the DD Boost plugin as required to align versions.*
  • After aligning versions, retry Cloud Tier device creation in NetWorker NMC.
*​​​​​​​Customer login may be required to access certain downloaded content.

Affected Products

NetWorker Family, NetWorker
Article Properties
Article Number: 000387707
Article Type: Solution
Last Modified: 21 Nov 2025
Version:  2
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