I'm not an expert in reading those "rv" outputs, but if you are on stratum
16 it means you aren't synchronised. Try the command: ntpq -p deeley.
The "reach" column should show 377 for each server - octal for a bit
field of 8 ones meaning 8 good connections.
My guess is that you may have a TCP/IP problem, like a firewall blocking
access from your NTP client to its servers.
David,
Thanks for the feedback.
First of all, I looked again at your website and I realise that my problem is
probably not the same as yours - you had a deterioration in time-keeping,
whereas my system seems to have given up altogether. Probably my problem belongs
in a separate thread, but I'll keep going here as there is a lot of useful
information on Windows and NTP in this thread.
Mine is not an obvious TCP/IP problem: the client (deeley) and server (barlow)
are both on the LAN, whereas the only firewall - on barlow - is on the interface
to the outside world (and barlow's ntpd synchronizes fine with pool.ntp.org
servers). Also there is no sign of trouble with netstat -s.
When looking at the NTP log on deeley after a period of time I see a pattern: it
records synchronization to barlow, and then 4-10 minutes later it records "no
servers reachable", like this:
10 Dec 13:54:19 NTP[3548]: synchronized to 192.168.0.5, stratum 3
10 Dec 14:00:38 NTP[3548]: no servers reachable
Successive ntpq -p commands show:
C:\NTP>ntpq -p
remote refid st t when poll reach delay offset jitter
==============================================================================
*barlow 213.222.11.219 3 u 37 64 77 0.278 -816.70 861.409
C:\NTP>ntpq -p
remote refid st t when poll reach delay offset jitter
==============================================================================
barlow 213.222.11.219 3 u 37 64 377 0.267 -28115. 1823.41
I'm open to any suggestions for looking at other debugging information.
John
--
John Allen
Bofferdange, Luxembourg
allen{at}vo{dot}lu
http://www.homepages.lu/allen
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