OK, you're using the managed version. That explains it - as in the managed version, most controls are by default disabled (to prevent people from changing settings etc).
So, first, you need to enable the controls. This is done by modifying properties of the Computer Catalog group in which the server resides.
Also, please note that it will take a couple of minutes after you make the config change to propagate the change to the target machine.
Thanks
Vlk