Google WIFI setting to the class A 10.0.0.0 Network
Updated: Nov 20, 2018
I saw many reviews on YouTube that this could not be done, but looks like with a recent update, you can set it to any network you want. Go to Settings > Network & General > Advanced Networking > LAN
After you make your changes, hit Save on the top.
here is a screenshot of firmware version I am using.