Most of the time fpolicy does not work at first because of firewall issues.
Either it is a firewall in ONTAP
Or the firewall in the fpolicy server( fpolicy event receiver) which prevents Fpolicy to work properly.
If the firewalls are disabled then it should work fine.
If you can't open the firewall, you need to open a certain range of ports for fpolicy to work.
Regards
Abhi