Listers,
I was using NTPD with the following configuration for the GPS (Garmin
18xLVC):
### /etc/ntp.conf
driftfile /var/lib/ntp/drift
server clock.fmt.he.net noselect
server ntp-1.vt.edu noselect
server clock.nyc.he.net noselect
server time-b.nist.gov noselect
# Garmin GPS 18 LVC
server 1
I've seen the same issue recently with:
chrony-3.1-4.fc26.x86_64
[seitz@storage ~]$ chronyc sources
210 Number of sources = 7
MS Name/IP address Stratum Poll Reach LastRx Last sample
===
^* ntp-gps1.fiber.house