im getting errors on all of my NTP clients.
Oct 27 14:44:15 cms2 ntpd[19830]: synchronisation lost
Oct 27 15:08:25 cms2 ntpd[19830]: time reset 0.688591 s
Oct 27 15:08:25 cms2 ntpd[19830]: synchronisation lost
Oct 27 15:28:45 cms2 ntpd[19830]: time reset 0.462257 s

i checked several things:

ntpq> rv
status=0644 leap_none, sync_ntp, 4 events, event_peer/strat_chg,
version="ntpd 4.1.2@1.892 Tue Feb 24 06:32:25 EST 2004 (1)",
processor="i686", system="Linux2.4.21-32.0.1.ELsmp", leap=00, stratum=3,
precision=-17, rootdelay=20.179, rootdispersion=33.180, peer=29037,
refid=ntpServer1,
reftime=ccb03d7c.ac03ff69 Mon, Oct 27 2008 14:15:40.671, poll=6,
clock=ccb03d84.6b1044f1 Mon, Oct 27 2008 14:15:48.418, state=4,
offset=-96.471, frequency=442.496, jitter=98.288, stability=5.497


[root@cms1 root]# tcpdump -n udp port 123
tcpdump: listening on bond0
10:24:46.786062 10.23.1.30.ntp > 10.23.1.4.ntp: v4 client strat 3 poll 6 prec -15 (DF) [tos 0x10]
10:24:46.786975 10.23.1.4.ntp > 10.23.1.30.ntp: v4 server strat 2 poll 6 prec -17 (DF)
10:24:54.786359 10.23.1.30.ntp > 10.23.1.3.ntp: v4 client strat 3 poll 6 prec -15 (DF) [tos 0x10]
10:24:54.786984 10.23.1.3.ntp > 10.23.1.30.ntp: v4 server strat 2 poll 6 prec -17 (DF)



root@cms3 root]# ntpq -p
remote refid st t when poll reach delay offset jitter
==========================================================
LOCAL(0) LOCAL(0) 5 l 42 64 1 0.000 0.000 0.061
+ntpServer1 172.16.21.210 2 u 18 64 1 0.373 -15.214 3.043
*ntpServer2 172.16.21.210 2 u 19 64 1 0.341 -10.955 2.306



any suggestions?
cheers