How to check if the time sync is correct

domain-controllertime-synchronizationw32time

I have updated a W2K3 settings according to the steps shown here:

http://support.microsoft.com/kb/816042#LetMeFixItMyselfAlways2

The peers list I use is:

0.asia.pool.ntp.org,0x1 1.asia.pool.ntp.org,0x1 2.asia.pool.ntp.org,0x1 3.asia.pool.ntp.org,0x1

I did a 

net stop w32time && net start w32time

to restart the service.

How do I check the settings?
How do I know it's working?

When I try the following:

w32tm /monitor

The response I get looks like the time sync goes to the local computer (the DC) 

C:\Documents and Settings\Administrator>w32tm /monitor
    OptiDC.opti *** PDC *** [192.168.0.2]:
    ICMP: 0ms delay.
    NTP: +0.0000000s offset from OptiDC.opti
    RefID: 'LOCL' [76.79.67.76]
  • is that what the answer should be?
  • Shouldn't I see something that has one of the NTP servers from the peers list?

Best Answer

You can use w32tm and provide the names of the computers it should contact, something like 

w32tm /monitor /computers:0.asia.pool.ntp.org,1.asia.pool.ntp.org 
Analyzing:delayoffset from local clock
(unknown)Stratum: 2
delayoffset from local clock
Stratum: 2

Warning:
Reverse name resolution is best effort. It may not be
correct since RefID field in time packets differs across 
NTP implementations and may not be using IP addresses.


0.asia.pool.ntp.org[203.158.118.2:123]:
ICMP: 291ms 
NTP: +2.2762642s         RefID:  [0x3C45B9CB]
1.asia.pool.ntp.org[61.110.197.50:123]:
ICMP: 345ms 
NTP: +2.2593270s         RefID: time.nist.gov [192.43.244.18]
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