Hi All,   Have quite a few locations that have an MX with a VDSL connection as its main internet. Due to it being a VDSL connection we have had to use the providers modem/router to facilitate the connection. Unfortunately the providers modem is not capable of being set into bridge mode (Arg.. 😞 ) So in effect the Meraki is running in double NAT. We also have a 4G backup USB modem plugged into it as fail-over.   The issue we have is that if there is an upstream failure (soft failure) on the primary connection (VDSL) the Meraki does not seem to failover to the Cellular. Reading the documentation on failover it mentions it will only failover if all 3 test fail (internet, DNS, and ARP). But in my case ARP will never fail because the providers router is still on, albeit with no working uplink. https://documentation.meraki.com/MX/Firewall_and_Traffic_Shaping/Connection_Monitoring_for_WAN_Failover#Connectivity_Tests   Apart from trying to obtain VDSL modems that are capable of bridging does anyone else have any experience on what can be done? ... View more