That message popped up after I installed Avast Internet Security and I was asked to select the appropriate firewall mode for the new network (either home or public). We do have a wireless network of 4 computers (+ phones) with a Belkin dongle(?) somehow providing this facility.
My problem is, how do I respond to this popup?
The difference between home/public are in which Windows/Files would be seen by the others.
Public is saver. Home is for trusted computers.
Thank you for the clarification 
You’re always welcome.