ntopng + nProbe and softflowd

Hi!

At the moment I am trying to get the above setup running. softflowd is 
an a PFsense, nProbe on a Raspberry and ntopng on a Debian 9 VM. I do 
not get sufficiant data (only peaks of 20 to 200 Mbit/s and no stream of 
traffic).

A ntopng on the PFsense is not working properly so I would like to try 
this way.

Am I missing some options to calibrate the information? I left pretty 
much all of it alone.

Matthias