All Firewall notifications off, but I still get constant notifications

Hello, I am using NAV 12 for Mac (v 7.2) on two computers, one using Mac OS 10.12.1, the other Mac OS 10.9.5.

I am constantly interrupted by notifications of application blocking and other things related to the Firewall. There are two issues for me here:

1) I have unchecked the notification checkboxes in the Advanced Settings pane, but I still get notifications. Why is this, and how can I stop notifications?

2) I never know what do do when it asks me for an action. I just want NAV to do its job without me having to make decisions about issues I don't understand.

Can someone from Symantec help me with this?

Thanks, Tim