My ISP requires using their residential gateway (rg - modem/router combo) which does not allow you to change the DNS settings. I have a Netgear R8000 X6 Nighthawk running DD-WRT cascaded from the RG. Can I run AirVPN in this configuration without issue? If I change the DNS on the X6 to AirVPN DNS settings will I lose internet connectivity as this router gets internet through the rg? If this works, will I leak DNS? Thanks in advance.