Reg1145Apr 16, 2014 at 14:38 UTC. If your DC is an authoritative time server, all of your servers, including the Hyper-V hosts and VM's should all use your DC as the authoritative time server to sync their time. As a result, I would disable the "Time Synchronization" feature in the settings of each of your VM's. 1.

Please select, right and copy a registry key from below, then right click on command prompt window, select Paste and press Enter. To Start Hyper-V Time Synchronization Service service:net start vmictimesync. sc start vmictimesync. Note: You can’t start a service if Startup type is on Disabled. To Stop Hyper-V Time Synchronization Service service:net stop vmictimesync hyper-v server time sync source - PDC / external NTP 2020-6-12 · All the Hyper-V servers will sync to PDC because theyr are domain joined, All other guest will sync to Hyper-V time service. Plan 2 (I am thinking about implementing this one because the hypervisor layer will be independent from the guest PDC) force all Hyper-v Hosts to sync time from external NTP. Disable Hyper-V Virtual Machine Time Synchronization

Hyper-V Time Synchronization Service is a Win32 service. In Windows 8 it will not be started until the user starts it. When the Hyper-V Time Synchronization Service is started, it runs as NT AUTHORITY\LocalService in a process of svchost.exe, sharing it with other services.

Feb 22, 2019 · This problem is directly solved for Hyper-V guests via the Hyper-V Time Synchronization Service. Time Synchronization for Virtualized Domain Controllers The PDC emulator, whether virtual or physical, should be synchronizing its time from a known valid external source, such as authoritative Internet-based systems or a dedicated hardware clock. Mar 05, 2015 · When the domain controller holding the PDC Emulator FSMO role is a virtual machine on a Hyper-V host and you have the Hyper-V Time Synchronization Service enabled in the guest OS, the host will sync its time with the domain controller running in the guest OS. This is when time can start to shift. This will cause the virtual DCs to synchronize with the time on the Hyper-V host causing the time to be inaccurate. This will start a knock-on effect resulting in all machines in the domain to have the wrong time. This will then cause issues with Kerberos, logins, some websites and more. How to set up time

REVISE: Time Synchronization in Windows Hyper-V – …

For virtualized domain controllers, especially on Hyper-V Server 2016 and later, you must disable the Time Synchronization service. While you will find references to partially disabling the service, it is no longer effective. Right-click on your newly created GPO and click “Edit”. This will launch a new window with the group policy editor.