For proper operation of the Industrial Edge Management and Edge Devices, the Industrial Edge Management and Edge Devices must be time synchronized. An NTP server is required to properly synchronize the time on the Industrial Edge Management and Edge Devices.
Either use the default configured Debian NTP servers that are used when you connect the PC running the Industrial Edge Management to the Internet. Or, if you are running the Industrial Edge Management and the Edge Devices in your local network disconnected from the Internet, provide your own NTP server to which the Industrial Edge Management and the Edge Devices must be able to connect.