* LAN net * WAN2 net * WAN1FailsToWAN2 Make sure wan2 traffic goes to wan2
* LAN net * nnn.nnn.nnn.n33 * WAN2FailsToWAN1 Make sure WAN1 traffic goes to WAN1
I usually do routing like this using static routes, not firewall rules.
As long as the WAN gateway does not show up in the arp tables, you are not getting a physical connection and the WAN will not work. From your description, it looks like a hardware problem - maybe IRQ related. Try turning off anything not needed by pfsense in the bios. this can be audio, floppy ….if that does not help then upgrade bios.