Lockdown mode should be disabled first. To disable follow the bello steps.
Any one of the option is enough.
To configure Lockdown mode:
Log directly into the ESXi host.
Open the DCUI on the host.
Press F2 for Initial Setup.
Toggle the Configure Lockdown Mode setting.
Enabling or disabling the Lockdown mode using ESXi Shell
You can run these commands from the vSphere CLI to verify the status of the Lockdown mode and to enable/disable it.
ESXi 5.x and 4.1
To check if Lockdown mode is enabled: vim-cmd -U dcui vimsvc/auth/lockdown_is_enabled
To disable Lockdown mode: vim-cmd -U dcui vimsvc/auth/lockdown_mode_exit
To enable Lockdown mode: vim-cmd -U dcui vimsvc/auth/lockdown_mode_enter
Enabling or disabling Lockdown mode using PowerCLI
To enable Lockdown mode using PowerCLI, run this command:
(get-vmhost <hostname> | get-view).EnterLockdownMode() | get-vmhost | select Name,@{N="LockDown";E={$_.Extensiondata.Config.adminDisabled}} | ft -auto Name LockDown
To disable Lockdown mode, run this command:
(get-vmhost <hostname> | get-view).ExitLockdownMode()