Hello,
I have an issue with time being constantly reset on 2 domain controllers in a multi domain hierarchy. We have one domain with a sub-domain. In the top domain all dc's sync time with the PDC emulator. In the sub domain, win32 time service has configured to sync with the
SiteA = Topleveldomain1, contains 2 DC's, DC1= primary dc and PDC emulator DC2 = DC with infra master role, syncs time with DC1 TIME OK
SiteB= Topleveldomain1, contains 1 DC, Syncs time with DC1 (Hyper-v!) TIME OK
Site1= Subdomain1, contains Primary DC with PDC emulator role, Syncs time with DC2 TIME OK
Site2= Subdomain1, contains DC with infra role, syncs time with DC2 (hyper-v!) TIME RESET EVERY 10 MINUTES
Site3= Subdomain1, contains DC, syncs time with DC2 (Hyper-v!) TIME RESET EVERY 10 MINUTES
I hope I have explained clearly above. the time on the DC's in site 2 and 3 are constanly set back and forth by one minute every 10 seconds. They sync with DC2 and set time correctly, then time is synced again to wrong time by integration services. I have set partially turned off the time sync of the hyper-v host by modifying the registry key to value 0: HKLM\SYSTEM\CurrentControlSet\Services\W32Time\TimeProviders\VMICTimeProvider
So the sync of time itself is ok, but something is causing the hyper-v host to still sync time. I have turned off time sync in the hyper-v guest settings and the time is not wrongly resynced by the hyper-v host anymore. I have off course rebooted the machine already. Secondly, I think it is strange that the time of DCs in the sub domain is synced with the DC2 and not the DC1 as I would expect reading this article. Or am I missing something?
http://blogs.msdn.com/b/virtual_pc_guy/archive/2010/11/19/time-synchronization-in-hyper-v.aspx
Question is, why is the time constantly reset by the hyper-v host, regarding the registry setting being set not to do so?