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Windows 2008 R2 Hyper-V Server uses "Local CMOS Clock" instead of domain time - no local Site-DC available!

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We have a few Sites but on the very small Sites we dont have an own DC.

On the most other sites, we have a DC and the Hyper-V Server is syncing it's Clock with the virtual DC running on itself (VMICTime disabled) and the DC correctly syncs its time with the PDC running on the Main-Site.

There are however 3 smaller Sites where we havnt seen an urge to install an local Site-DC. So these Hyper-V Servers only contain Standard-Domain-Member Servers.

THe Hyper-V itself also is an Domain-Member.

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Problem: 

The Hyper-V Server only uses (visible with   w32tm /query /status)  the "Local CMOS Clock" or "Free-running System Clock"

There is only ONE WAY to get him sync with the DC  which is in a different subnet and that is with  

#  net stop w32time

#  net time \\servername /set /y

#  net start w32time

With that the Clock is  "in Sync" with the PDC, but    "w32tm /query /status"  still gives "Local CMOS Clock"

Of Course, after a few minutes, the Clock is out of sync again because it does'nt keep synching

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i Tried:

Enter Registry Keys:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\W32Time\Parameters

-> NTPServer (pdc.domain.local)

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\W32Time\TimeProviders\VMICTimeProvider

-> Enable (0)

w32tm /config /computer:pdc.domain.local  /syncfromflags:DOMHIER

w32tm /resync 

Gives Error: "No timedata available"  which is understandable because "w32tm /query /status"  shows it's still using the Local CMOS Clock/Free-running System Clock.

w32tm /stripchart /computer:zwiendc /samples:1000 /dataonly

Shows me the correct, actual difference between the HyperV and the PDC (so the NTP  connection IS working, nothing blocked by any Firewall)

iam a little out of Ideas here.




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