New OPNsense setup with Tailscale

[biggreydog]

I am new to OPNsense and am looking to convert from pfSense that I have used for many years.  I use both Tailscale and Wireguard and installed them on a router before I consider going live in my current situation.  Tailscale installed without issue and I can see on the Tailscale webpage that it is connected.  However I cannot access any of the network behind router.  I turned on NAT-PMP that is recommended and not sure where to go from here.