Troubleshooting "Unable to Establish Trust" Error in Backup Exec

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Article ID: 100067245

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Updated On:

Description

Error Message

"The login account does not have the appropriate privileges. Assign the Windows user rights 'backup up files and directories and restore files and directories to the specified logon account, or use another logon account.' E0009B51."

 

Cause

This error code indicates that the login account lacks the necessary privileges to perform the desired action.

The root cause of this issue is an outdated agent version on the affected servers. The outdated agent does not have the required permissions to establish trust and perform the necessary tasks. 

 

Resolution

To resolve this issue, follow these steps:

  1. Uninstall the outdated agent:

    • Access the affected server.
    • Go to the Control Panel and open "Programs and Features."
    • Locate the outdated agent in the list of installed programs.
    • Right-click on the agent and select "Uninstall."
    • Follow the prompts to complete the uninstallation process.

  2. Install the latest agent:

    • Download the latest version of the agent from the official Backup Exec website.
    • Run the installer and follow the on-screen instructions to install the agent.
    • Ensure that the installation is successful and there are no errors reported.

  3. Reboot the server:

    • After installing the latest agent, restart the affected server.
    • Allow the server to fully reboot and establish all necessary connections.

  4. Test the connection:

    • Once the server is back online, open Backup Exec.
    • Attempt to establish trust with the desired server.
    • Verify that the "Unable to Establish Trust" error no longer occurs.
    • Ensure that all desired tasks can be performed without any issues.

 

Issue/Introduction

"Unable to Establish Trust" error when trying to establish a connection to a remote server in the Backup Exec Console.
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