If for some reason you have decided to manually change the C3 Micro-Cloud clock, after booting the device will probably show a message stating that the device is not licensed. This is due to the fact that, a manual clock change, triggers a protection in our licensing mechanism.
This can be usually easily overcome by connecting the device to the internet and rebooting it, so that the license can be reset with the new date/time.
If after reboot the server it still shows up as not licensed, please open a ticket in the support site.