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March 18, 2021

Troubleshooting Tip: Unable to delete the FortiGate's central-management section

  • March 18, 2021
  • 0 replies
  • 7119 views

Description


This article describes how to recover the FortiGate from not being able to delete the central-management setting because of a GUI message:
 

'Please unregister device from FortiManager first' (GUI).
'Please unregister-device from FortiManager first. object set operator error, -582 discard the setting Command fail. Return code -582' (CLI).

 

image (4).png

 

Scope

 

FortiGate.

Solution


Investigate this problem. In the meantime, as a workaround:

  • From the GUI, add 0.0.0.0 as the FortiManager IP.
  • It will be logged out of the FortiGate.
  • Log in again.
  • It will be possible to set central management to 'None' without registering.
  • Apply the changes.

 

If that does not work, run the following command on FortiGate CLI:

 

config system central-management
    unset serial-number
end

 

config system central-management
    set type none
end

 

Additional note:
For FortiManager Cloud, doing the change mentioned will still result in an error:
'Please unregister-device from FortiManager first. object set operator error, -582 discard the setting. Command fail. Return code -582'

 

In this case, unset the serial number of the FortiManager from the FortiGate:


config system central-management
    unset serial-number
end