WAN out connection Issues

[Tetra]

I've ran into an issue setting up my personal physical network. I currently can't ping my ISP Router from my endpoint but I can ping the Opnsense WAN from the same endpoint. I believe it might be a routing issue between the WAN and ISP but I'm hopping someone could provide more input. The following is my topology for clarity:

Endpoint --> SVI --> Switch Routed interface --> Opnsense LAN --> Opnsense WAN --X--> ISP Router --> Modem

[viragomann]

Is the OPNsense WAN IP private or public?
Is the ISP routers IP private?
Can you ping the ISP router from OPNsense?