Linux NTP client is not syncing with Windows NTP server

(Doc ID 2338398.1)

Last updated on DECEMBER 12, 2017

Applies to:

Linux OS - Version Oracle Linux 6.3 and later
Information in this document applies to any platform.

Symptoms

 The linux client is not syncing with the windows NTP server, with ntpstat and ntpq showing the following outputs:

[root@client ~]# ntpstat

unsynchronised
time server re-starting
polling server every 64 s

 

[root@client ~]# ntpq -p
remote refid st t when poll reach delay offset jitter
==============================================================================
xxx.mef .LOCL. 1 u 43 64 1 0.812 -62141. 0.000
yyy.mef. .INIT. 16 u - 64 0 0.000 0.000 0.000


[root@client ~]# ntpq
ntpq> as

ind assID status conf reach auth condition last_event cnt
===========================================================
1 44945 9014 yes yes none reject reachable 1
2 44946 8000 yes yes none reject reachable 1

[root@client ~]# ntpq
ntpq> rv 44945
assID=44945 status=9014 reach, conf, 1 event, event_reach,
srcadr=xxx.mef, srcport=123, dstadr=10.149.202.34,
dstport=123, leap=00, stratum=1, precision=-6, rootdelay=0.000,
rootdispersion=10939.377, refid=LOCL, reach=377, unreach=0, hmode=3,
pmode=4, hpoll=6, ppoll=6, flash=400 peer_dist, keyid=0, ttl=0,
offset=20.817, delay=0.989, dispersion=16.511, jitter=1.848,
reftime=ddcfe691.dd3570fb Mon, Dec 4 2017 10:21:53.864,
org=ddd11e56.65250ead Tue, Dec 5 2017 8:32:06.395,
rec=ddd11e56.5ff13046 Tue, Dec 5 2017 8:32:06.374,
xmt=ddd11e56.5fb0656b Tue, Dec 5 2017 8:32:06.373,
filtdelay= 0.99 0.77 0.74 0.87 0.78 0.81 0.79 0.63,
filtoffset= 20.82 21.82 22.65 21.44 25.14 20.27 21.16 20.52,
filtdisp= 15.63 16.62 17.59 18.55 19.53 20.52 21.51 22.48

 

Cause

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