[ntp:questions] Offsets in NTP vs. SNTP

Brian Garrett mgy1912 at cox.net
Tue Jul 24 21:05:12 UTC 2007

I have never seen this question answered anywhere, so I hope someone here 
can either answer, or point me in the right direction in TFM that I didn't R 

When I use an SNTP client on my Windows XP box, after one or two settings 
the client displays an offset  of a few milliseconds (usually <5).  However, 
if I then immediately check the offset with NTP (using either the NIST app 
available on their website or Meinberg's NTP monitor), I get an offset in 
the 20-30ms range.  Why would the two offsets be different?  The delay 
hasn't changed.  I know the two protocols function differently but they 
should still be reading the same time, no?

Brian Garrett 

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