NTP sync problem

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Operating Systems Linux Red Hat NTP sync problem
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Old 11-11-2009
NTP sync problem


I have 4 machines and all are NTP configured with same ntp.conf file. But 3 machines are in sync with Time server and 4th machine is not contacting & sync with the NTP server. Please see the below details.

[root@LINUXSER01 ~]# service ntpd stop
Stopping ntpd:                                             [  OK  ]
[root@LINUXSER01 ~]# ntpdate -u NTPSERVER01
11 Nov 15:38:07 ntpdate[3010]: adjust time server 172.25.XX.XX offset -0.030428 sec
[root@LINUXSER01 ~]# service ntpd start
Starting ntpd:                                             [  OK  ]
[root@LINUXSER01 ~]# ntptime
ntp_gettime() returns code 5 (ERROR)
  time cea558ef.cbb0d000  Wed, Nov 11 2009 15:38:23.795, (.795667),
  maximum error 2064 us, estimated error 16 us
ntp_adjtime() returns code 5 (ERROR)
  modes 0x0 (),
  offset 0.000 us, frequency 0.000 ppm, interval 1 s,
  maximum error 2064 us, estimated error 16 us,
  status 0x40 (UNSYNC),
  time constant 0, precision 1.000 us, tolerance 512 ppm,
[root@LINUXSER01 ~]#

Output of ntpq -p command:
[root@LINUXSER01 ~]# ntpq -p
     remote           refid      st t when poll reach   delay   offset  jitter
 NTPSERVER01 192.168.xxx.xxx  3 u   57   64    1    1.155  -151.64   0.002
 NTPSERVER02 192.168.xxx.xxx  3 u   56   64    1    1.245  -151.70   0.002
[root@LINUXSER01 ~]#

/etc/ntp.conf file:
restrict default kod nomodify notrap nopeer noquery
server NTPSERVER01
server NTPSERVER02
fudge stratum 10
driftfile /var/lib/ntp/drift
keys /etc/ntp/keys
#log files
logconfig all
logfile /var/log/ntpd.log

ntpd log messages:

11 Nov 15:38:20 ntpd[3046]: system event 'event_restart' (0x01) status 'sync_alarm, sync_unspec, 1 event, event_unspec' (0xc010)
11 Nov 15:38:20 ntpd[3046]: peer 172.25.xx.xx event 'event_reach' (0x84) status 'unreach, conf, 1 event, event_reach' (0x8014)
11 Nov 15:38:21 ntpd[3046]: peer 192.168.xx.xx event 'event_reach' (0x84) status 'unreach, conf, 1 event, event_reach' (0x8014)

Please let me know if you need any other details to analyse the issue.
Please help me in resolving this issue.
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