In order to make settings changes, the server must be offline for at least 5min. Make your change, save then restart.
Unless you are using the WebUI to the server (default settings). Then you would only click save then restart.
I had the cryostasis off ever since I had gotten the server and the setting seems to not change. Admin logging I have done recently and saved restarted and the issue still persists. I have been using the WebUI for the changes.