A user wants to be able to set their own internal NTP server. After setting this into the registry, I call IOCTL_SERVICE_REFRESH to the NTP driver and it correclty updates.
Now, how do I know that they have a valid NTP server input? Is there any way to get the result of the RTCSync event? If they have typed in an invalid NTP server for whatever reason, I would like to know if it failed, so I can fall back and try pool.ntp.org before giving up.
Any advice?