synchronize AD with External NTP Server

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byYongKW
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Tutorial on how to synchronize AD with External NTP Server

Configure AD Domain Controller which is running as PDC Emulator Role to point to External NTP Server (time.google.com or time.windows.com)

w32tm /config /manualpeerlist:"time.windows.com,0x8" /syncfromflags:MANUAL /update
  • 0x8 – Force sending client requests to the specified NTP server

Verify AD Domain Controller is pointing to time.windows.com

w32tm /query /source
time.windows.com,0x8

Force Sync with time.windows.com manually

w32tm /resync

Verify there is no error to sync with external NTP Server

C:\Users\Administrator>w32tm /query /status
Leap Indicator: 0(no warning)
Stratum: 4 (secondary reference - syncd by (S)NTP)
Precision: -23 (119.209ns per tick)
Root Delay: 0.0088451s
Root Dispersion: 7.7909026s
ReferenceId: 0x349472BC (source IP:  52.148.114.188)
Last Successful Sync Time: 2/20/2021 10:22:41 PM
Source: time.windows.com,0x8
Poll Interval: 7 (128s)

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