[ntp:questions] Standalone PC Clock Sync

Russell, David David.Russell at dowjones.com
Mon Nov 5 01:48:45 UTC 2007

The PC is running XP and the Greyware Domain Time II NTP client.

I'll track down the drift file info.  Do you think that it should be
possible to maintain the clock accuracy while the PC is unable to
receive any NTP packets?


-----Original Message-----
From: Danny Mayer [mailto:mayer at ntp.isc.org] 
Sent: Sunday, November 04, 2007 8:24 PM
To: Russell, David
Cc: questions at lists.ntp.org
Subject: Re: [ntp:questions] Standalone PC Clock Sync

Russell, David wrote:
> I have a PC running Windows that gets disconnected from the network
> up to an hour.  I am using NTP to sync the clock while it is connected
> but when disconnected the clock drifts quite a bit.  Does anyone have
> any suggestions for how I can maintain the timing in this scenario?   
> Also, I have been looking for a PCI card that would give me better
> accuracy than the standard Windows clock.  Sub-millisecond accuracy
> using NTP is the objective.

Let's start with the basics. What version of NTP are you running and
what operating system? What's in the drift file and are there any errors
in the application event log?


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