@dbmadmin
This might be the issue : "cobine 2 wans".
As I have a pfSense, a (one) WAN, default setup, using DHCP and a LAN, default setup, 192.168.1.1/24 - also all default with default DHCP server setup.
I've also a access point, living on LAN (192.168.1.2/24 - gateway 192.168.1.1) and I have a Phone and Whatssapp.
Nothing else it needed : the Whatssapp app can go 'out' and connect to needed servers.
I have also an upstream ISP router, no setting changes needed.