In this blog will I show how to setup a NTP server and perform NTP synchronizing on remote server.
The server IP is 192.168.1.240 and is located in 192.168.1.0/24 subnet.
Query your NTP server, but NOT set time. If query return higher stratum than 16, just wait a little and then requery.
Client Set NTP Server
And finally you need to restart ntpd service.