PfSense NTP Server and Windows - error occurred while synchronizing

[MrGlasspoole]

Not the main topic but i don't want to open a new thread.

I did build a DCF77 radio receiver for a view bucks with a Arduino.
It is now connected to the motherboards serial port of my Hyper-V 2016 server.

I did install the Meinberg Driver and there NTP package on the Hyper-V 2016 server.
On the other windows PCs I use the NTP package.

I have in pfSense now 10.1.0.2 + Prefer.

Is there something in Services > NTP > ACLs i need to set if i don't want do use pfSense as timeserver?
Does "Service - Disable all except ntpq and ntpdc queries (noserve)" disable the timeserver?

Some images in the attachment if somebody want to see it.