Time Sync with PDC- Manual works DOMHIER does not

[dabriggs]

I set one of my Domain Controllers to sync time from the PDC using the DOMHIER flag and it fails to sync.

w32tm /config /update /syncfromflagsOMHIER /reliable:yes
net stop w32time
net start w32time

w32tm /resync /rediscover
The computer did not resync because no time data was available.

w32tm /query /source
Local CMOS Clock

However if I set that PDC as a manual sync it works

w32tm /config /syncfromflags:manual /manualpeerlist:"PDC.contoso.com" /reliable:yes
net stop w32time
net start w32time

w32tm /resync /rediscover
The command completed successfully

w32tm /query /source
PDC.contoso.com

I've tried unregistering and re-registering the w32tm service. It did not make a difference.

net stop w32time
W32tm /unregister
W32tm /register
net start w32time


Why would syncing manually to the PDC work but not DOMHIER? I have no other Domain Controllers having this issue.

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