Thanks, but your last question repeats mine...

I did find my DCs were using THREE different ntp sources.  I have 
corrected that on all but a couple of VM DCs...  (I'll probably correct 
them shortly.)

The two VM DCs had the same time as my "definitive" DC.  However, they had 
"time.microsoft.com" in their registries.

Two VoIP controllers (which both slipped 3 minutes yesterday) also had 
"time.microsoft.com", but again, their time was not the same as the VM DCs 
claiming the same source.
--
RMc

Micheal Espinola Jr <[email protected]> wrote on 09/18/2009 
09:49:57 AM:

> If your servers have slipped that much in 24 hours after a time 
> sync, then you prolly have battery issues.  Does the time sync up 
> after another forced sync?  How is the sync configured for automatic 
use?
> --
> ME2
> 

> On Fri, Sep 18, 2009 at 10:36 AM, <[email protected]> wrote:
> 
> Greetings! 
> 
> I have workstations and servers in my domain whose time is all over the 
place!
> 
> Two servers I manually sync'd with a domain controller less than 24 
> hours ago are now once again 3 minutes behind. 
> 
> Workstations are up to 5 minutes one way or the other. 
> 
> I know this keeps coming up here, but again, please... 
> 
> 1. With multiple domain controllers, does one pick one of them, sync
> to an outside time source, then somehow point the other DCs to this 
> DC?  If so, then one puts in the name of the selected DC in the 
> registry settings for time services?  OR, does one make sure all the
> DCs point to the same external NTP server? 
> 
> 2. Why do servers and workstations drift off, time-wise?  How to stop 
this?
> -- 
> Richard D. McClary 
> Systems Administrator, Information Technology Group 
>   
> ASPCA® 
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