Many thanks to Urs and George. > In Debian 12 the default /etc/ntpsec/ntp.conf file contains the lines > > # Comment this out if you have a refclock and want it to be able to > discipline > # the clock by itself (e.g. if the system is not connected to the network). > tos minclock 4 minsane 3 > > which means ntpd needs at least 3 servers to choose from. If you > haven't changed that line and you have only one server configured like > your output shows, you can never get synchronisation.
That is exactly the change I needed. I commented out the whole line and sync now works. Steve