In this post, we will see one of the most common NTP error message and how to resolve this.
"Lowest Stratum not being used for Current Time Source."
NTP is not using the lowest available stratum for its time source.
Check that the NTP server or peer is operational. Check system logs (/var/log/messages on the client and server) for further information. It usually happens when the last server is not operational and has issues.