NTP sync fails with “The computer did not resync because no time data was available.”

This shit can cause som heavy headache. When you do a “w32tm /resync” the message “The computer did not resync because no time data was available.” is returned.

This happened on my PDC Emulator and i tried almost everything. Reconfiguring w32 time sources, uninstalled and installed w32tm (w32tm /unregister -> w32tm /register). Cheked the firewall over and over again (UDP123). Cheked the actual time with NTP-server (w32tm /query /status) and everything seemed fine. But no… when syncincing “no data is available”.
The cause of this is probably that a GPO has hitten the PDC/DC in the back and updated the w32tm type. What this does is updating the registry with type “NT5DS” instead of what it should be “NTP”.
So first off, chek if you have any GPO that’s applying on the server with this setting. When you are confident that there is no such thing. Go in to registry and update the Type Parameter.
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\w32time\Parameters
Type = NTP


Start and stop the w32time service and try resyncing again:
net stop w32time
net start w32time


Also chek that the GPO NT5DS-setting hits the client with the PDC Emulator as time source.