Network Time - Outlier - found 1 peer non suitable

[katamadone [CH]]

I don't found that much about the status Outlier in NTP.
Have that status no since about some weeks periodically. But never seen before.

[katamadone [CH]]

I'm on Business 21.10.3_1

[katamadone [CH]]

If I interpret correctly:
If there are more than three registered servers, the worst nad surplus ones are listed as outliers.

If that's correct, I don't have to search NTP Problems at this region. We had issues on our internal systems behind the opnsense. They couldn't sync with opnsense. After a restart (@ version 21.10.3) all went fine.

[katamadone [CH]]

reftime vs clock.. isn't reftime the time which the server "delivers"??
Because between these two examples are roughly 10 minutes..
Which would confuse me in many ways.

-

Al services looking good but "Found 1 peers, but none is suitable" ntpq -npcrv

Code Select Expand

     remote           refid      st t when poll reach   delay   offset  jitter
==============================================================================
10.x.x.x       195.176.26.206   2 u  945 1024  377    0.242   -0.002   0.147
associd=0 status=0058 leap_none, sync_unspec, 5 events, no_sys_peer,
version="ntpd 4.2.6p5@1.2349-o Tue Jun 23 15:38:18 UTC 2020 (1)",
processor="x86_64", system="Linux/3.10.0-1160.59.1.el7.x86_64", leap=00,
stratum=3, precision=-24, rootdelay=5.810, rootdisp=104.252,
refid=10.x.x.x,
reftime=e614d1c2.d7265bb4  Thu, Apr 28 2022 10:41:38.840,
clock=e614ddc1.df6948cf  Thu, Apr 28 2022 11:32:49.872, peer=0, tc=10,
mintc=3, offset=0.063, frequency=-1.239, sys_jitter=0.000,
clk_jitter=0.131, clk_wander=0.012
Working again - nothing changed  ntpq -npcrv

Code Select Expand

     remote           refid      st t when poll reach   delay   offset  jitter
==============================================================================
*10.x.x.x      195.176.26.206   2 u  335 1024  377    0.322    0.001   0.124
associd=0 status=0658 leap_none, sync_ntp, 5 events, no_sys_peer,
version="ntpd 4.2.6p5@1.2349-o Tue Jun 23 15:38:18 UTC 2020 (1)",
processor="x86_64", system="Linux/3.10.0-1160.59.1.el7.x86_64", leap=00,
stratum=3, precision=-24, rootdelay=5.724, rootdisp=43.500,
refid=10.x.x.x,
reftime=e614de25.c02456fe  Thu, Apr 28 2022 11:34:29.750,
clock=e614df74.9025a12a  Thu, Apr 28 2022 11:40:04.563, peer=13892,
tc=10, mintc=3, offset=0.001, frequency=-1.238, sys_jitter=0.000,
clk_jitter=0.125, clk_wander=0.012

[katamadone [CH]]

further investigating necessary - and for others:

reftime = The local time, in timestamp format, when the local clock was last updated. If the local clock has never been synchronized, the value is zero.

and
https://blog.meinbergglobal.com/2021/02/25/the-root-of-all-timing-understanding-root-delay-and-root-dispersion-in-ntp/