I am seeing the same problem. Version is 2.7.0
I have the NTP server Enabled and set to sync every hour. I run my own local NTP server
so I know it is not a connection problem. Upon a ISY device reboot, I see the initial
time sync....
(.130 is the ISY device and .50 is the server running NTP)
9:47:17.89708 172.22.22.130 -> 172.22.22.50 NTP client (Wed Feb 6 22:28:16 2036)
9:47:17.89761 172.22.22.50 -> 172.22.22.130 NTP server (Sun Apr 12 09:47:17 2009)
Then nothing, ever. If I do a manual "Synchronize now", I get another valid time
sync....
16:22:46.36672 172.22.22.130 -> 172.22.22.50 NTP client (Wed Feb 6 22:28:16 2036)
16:22:46.36844 172.22.22.50 -> 172.22.22.130 NTP server (Mon Apr 13 16:22:46 2009)
Also note the initial date/time from the ISY device