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Enabling Lockdown mode in vCenter Server fails with the error: General system error occurred: Invalid response (2007633)

Enabling Lockdown mode in vCenter Server via Configuration > Security Profile fails
You see the error:

A general system error occurred: Invalid response
Call "HostSystem.DisableAdmin" for object "<hostname>" on vCenter Server "<vCenter Server name>" failed

This issue occurs if Lockdown mode is enabled via the DCUI on the ESXi console.

To resolve this issue:

Log in to the DCUI on the ESXi console and disable Lockdown mode. For more information, see Enabling or disabling Lockdown mode on an ESXi host (1008077).
Enable Lockdown mode in vCenter Server.
1. Launch the vCenter Server, select the host and navigate to Configuration > Security Profile.
2. Under Lockdown Mode, click Edit and select Enable Lockdown Mode.

To request a new product feature or to provide feedback on a VMware product, please visit the Request a Product Feature page.

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