IPSec between Fortigate 200E and a remote pfSense Firewall guest on Hyper-V

I have an IPsec tunnel up and seemingly working between a Fortigate 200E and a pfSense vm. The status on the Fortinet shows it's up, the status on the pfSense shows that it's up and working. Shut the IPSec tunnel off, and only if the tunnel is off, and the LAN facing the pfSense as it's default gateway will have access to the internet. The LAN on the Fortinet side cannot see the LAN on the pfSense side and vice versa. 

What more information can I provide to assist others in assisting me?

Thank you!

Corey Piazza