@SR190 You seem to be way more knowledgeable about this stuff than I, so maybe you can help me. I don't have a pfSense. I have Arris surfboard (optimum) -> LB2120 -> Netgear AC series WiFi access point. I have a lot of static IPs and since the LB2120 doesn't support this, I don't want to use the DHCP service on that. Optimum provided IP address is dynamic. My first setup was to have LB2120 in bridge mode with IP as default with 192.168.5.1. My current LAN range (DHCP from Wifi AP) is 192.168.1.x. In bridge mode, I'm fine with the wired connection to optimum and can open the LB's browser at 192.168.5.1. When I disconnect the Optimum connection, it doesn't seem to failover and I can't get to the LB address. I know I'm getting LTE data because FreedomPop shows my data usage ticking up (presumably modem pings). I also tried putting it in router mode and disabling the DHCP service, but no go. I managed to screw it up so badly by enabling VPN that I had to do a factory reset because I couldn't get to the LB. So I'm wondering if changing the LB address to within my LAN range of 192.168.1.x is necessary or if you had any other thoughts. Appreciate any help.