Are these time server settings ok on my existing Hyper-V virtualized domain controller?Time synchronization is unchecked for the domain controller in Hyper-V manager Integration services (see attachment)
PS C:\Windows\system32> w32tm /query /source 1.us.pool.ntp.org,0x1 PS C:\Windows\system32> w32tm /query /source 1.us.pool.ntp.org,0x1 PS C:\Windows\system32> ping 1.us.pool.ntp.org
Pinging 1.us.pool.ntp.org [74.6.168.72] with 32 bytes of data: Reply from 74.6.168.72: bytes=32 time=110ms TTL=43 Reply from 74.6.168.72: bytes=32 time=110ms TTL=43 Reply from 74.6.168.72: bytes=32 time=113ms TTL=43 Reply from 74.6.168.72: bytes=32 time=108ms TTL=43
Ping statistics for 74.6.168.72: Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 108ms, Maximum = 113ms, Average = 110ms
Hello Sam,
This may help also Recommendation to Configure the Root PDC with an Authoritative Time Source and Avoid Widespread Time Skew. The Group Policy in that article makes sure that any PDC (so also if you migrate) get the correct time settings. This is a 'set and forget' solution I always implement.
If you launch a browser and go to https://time.is you can see if time settings are correct.
Mariette,
I configured the GPO and it appears to be working correctly:
PS C:\Windows\system32> gpupdate
Updating policy...
Computer Policy update has completed successfully.
User Policy update has completed successfully.
PS C:\Windows\system32> w32tm /query /source
1.us.pool.ntp.org,0x1
PS C:\Windows\system32> gpresult /r
Microsoft (R) Windows (R) Operating System Group Policy Result tool v2.0
© 2016 Microsoft Corporation. All rights reserved.
Created on 10/2/2024 at 6:59:31 PM
RSOP data for CCCI\ on CCCISERVER : Logging Mode
--------------------------------------------------------
OS Configuration: Primary Domain Controller
OS Version: 10.0.14393
Site Name: Default-First-Site-Name
Roaming Profile: N/A
Local Profile: C:\Users\
Connected over a slow link?: No
COMPUTER SETTINGS
------------------
CN=CCCISERVER,OU=Domain Controllers,DC=ccci,DC=local
Last time Group Policy was applied: 10/2/2024 at 6:57:45 PM
Group Policy was applied from: CCCIserver.ccci.local
Group Policy slow link threshold: 500 kbps
Domain Name: CCCI
Domain Type: Windows 2008 or later
Applied Group Policy Objects
-----------------------------
Default Domain Controllers Policy
Force time synchronization from external time servers
Default Domain Policy
Force time synchronization from external time servers GPO is working but I notice that if I restart the Windows Time Service settings revert to Local CMOS Clock until I do another gpupdate/force. Is this ok and normal? See below:
C:\Windows\system32>w32tm /query /source 2.us.pool.ntp.org,0x1
RESTARTED WIndows TIME Service
C:\Windows\system32>w32tm /query /source Local CMOS Clock
C:\Windows\system32>gpupdate/force Updating policy...
Computer Policy update has completed successfully. User Policy update has completed successfully.
C:\Windows\system32>w32tm /query /source 3.us.pool.ntp.org,0x1
The Windows Time Service does not need to be restarted. The GPO is applied every 15 minutes.