I have an RUTX11 and am trying to replicate the dual WAN setting based on the excellent instructions below.
Unfortunately I am not able to replicate fully. Once created the new interface is not showing up on "failover" tab.
This may be because when I am setting the protocol to DHCP I not getting the option for the "Switch Protocol" As shown in the picture below, I am getting "Hostname to send ..." and it is defaulting to "Teltonika-RUTX.com.
Any assistance you could provide would be welcome.