NTP time sync issues

Question

Hello All,

we have NTP server which is windows 10 installed and in registry settings we configured NTP server (10.10.10.10) to get time source from external time source.
It is working fine.

In AD, We have written GPO, across the domain all the devices should sync with NTP server.

NTP server :
C:\Windows\system32>w32tm /resync
Sending resync command to local computer
Successfull

ADC server :
C:\Windows\system32>w32tm /resync
Sending resync command to local computer
The computer did not resync because no time data was available.

Unable to find solution. Please help

Answer 1

But i want devices to get the time from NTP server itself.

This isn't a recommended or supported method.

w32tm /unregister
net stop w32time
w32tm /register
net start w32time
w32tm /config /manualpeerlist:<ntp ip address> /syncfromflags:manual /reliable:yes /update
net stop w32time
net start w32time
then check
w32tm /query /source
w32tm /query /configuration

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Answer 2

Ok Thanks.
I will reconfigure and update.

Answer 3

So Which is recommended method ?

Internal NTP server sync with External time servers

AD sync with NTP server

Domain computers sync with AD server ?

Domain computers > AD > NTP server > External time servers

???

Answer 4

I have set my GPO to use NTP server for time synchronization all devices including domain controllers.

If we set "NT5DS" it means it should get the time from DC right ??
But i want devices to get the time from NTP server itself.

Answer 5

Something here may help.
https://learn.microsoft.com/en-us/windows-server/networking/windows-time-service/windows-time-service-tools-and-settings
https://learn.microsoft.com/en-us/windows-server/networking/windows-time-service/how-the-windows-time-service-works

Some general info

• All domain members should use NT5DS domain time.
• Desktops and member servers sync with any domain controller.
• Domain controllers sync with PDC emulator (one per domain)
• PDC emulator in child domain can sync with any domain controller in parent domain.
• PDC emulator in parent domain syncs with either a hardware clock or possibly an external source.
  https://blogs.technet.microsoft.com/nepapfe/2013/03/01/its-simple-time-configuration-in-active-directory/

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