I am trying to set up failover WAN on a SonicWall TZ300. My primary cable connection comes in via static IP (modem is bridged) to interface X1. My cellular backup is also a static IP to interface X2 (modem is not and cannot be bridged).
My firewall's local IP is 192.168.168.168. I set the cellular backup ethernet to 192.168.167.1/24 and set my X2 interface to static of 192.168.167.2 with a default gateway of 192.168.167.1.
My cellular backup has internet connectivity when I connect to it directly, but when my primary cable internet goes out, I lose internet connectivity on my network.
I wanted to make sure my network is set up correctly to determine if it's a firewall configuration issue.