Did you create rules on the WAN2 that allow access to the pfSense WAN2 IP?
Yes, I added rules for WAN2 on port 80 to access webGUI and 22 to access SSH.
What exactly do you mean you have TTL issues?
I get this, when I try to ping OPT interface from the Internet:
From xx.xx.xx.xx icmp_seq=1 Time to live exceeded
From xx.xx.xx.xx icmp_seq=2 Time to live exceeded
From xx.xx.xx.xx icmp_seq=3 Time to live exceeded
From xx.xx.xx.xx icmp_seq=4 Time to live exceeded
From xx.xx.xx.xx icmp_seq=5 Time to live exceeded
--- xx.xx.xx.xx ping statistics ---
5 packets transmitted, 0 received, +5 errors, 100% packet loss, time 5000ms