If you keep the refclock enabled with the nearby NTP sources, will it
be marked as a falseticker?
PHC (noselect) plus 4 of the Google anycast
chronyc -n sources;chronyc -n sourcestats
MS Name/IP address Stratum Poll Reach LastRx Last sample
===============================================================================
#? PHC0 0 3 377 5 +29ms[ +29ms] +/- 17us
^+ 216.239.35.0 1 6 377 52 -512us[ -512us] +/- 5576us
^* 216.239.35.12 1 6 377 53 -80us[ -75us] +/- 5068us
^- 216.239.35.4 1 6 377 50 +566us[ +566us] +/- 18ms
^- 216.239.35.8 1 6 377 59 +672us[ +677us] +/- 18ms
Name/IP Address NP NR Span Frequency Freq Skew Offset Std Dev
==============================================================================
PHC0 6 3 40 -8.207 10.836 +29ms 39us
216.239.35.0 19 12 1162 -0.074 1.127 -60us 415us
216.239.35.12 64 38 67m +0.000 0.101 -46us 281us
216.239.35.4 64 35 67m +0.020 0.199 +46us 552us
216.239.35.8 64 30 68m +0.053 0.172 -8862ns 510us
Looks like a hypervisor problem.