I would like to know about this as well? I’m testing ZT on several hAP’s with a wired WAN, wireless and als LTE dongle as WAN connections. Although it does looks like it’s working - I’m just guessing here that the default route/distance in the MT are being use by ZT to determine the best available WAN route. Is there anything else you can share with us on how you came to this conclusion? Would be much appreciated!