@Kevin_Z sorry, to clarify: The issue is that in Australia, our Nation Broadband Network, which is provided by the various ISPs, doesn't support Google WiFi. Something about VLAN tag requirements. So...

Hello. I'm using an Archer C6 as my primary router, effectively as a modem, with Google Mesh wifi to extend wifi across the house. I get double NAT with the setup. Any fix? Understand the simplest...