How should I configure my Google WiFi to work with Sail Internet?

Google WiFi routers (or "main hubs") will connect to the Sail Internet network using their default settings. This article shows how to verify these settings using the Google WiFi app. 

After opening the WiFi app, tap on Settings on the top right. You should see a screen similar to the one below: 

From this screen, tap on Network & General. You should see a screen similar to the one below:  

Next, tap on Advanced networking. You should see a screen similar to the one below:  

When you tap on WAN, you get a screen showing you the WAN (Wide-Area-Network) configuration similar to the one below. The WAN settings should be DHCP. The WAN IP address will differ. 

If instead of tapping on WAN you tap on DNS, you get a screen showing you the DNS (Domain Name System) configuration similar to the one below. This should be set to Automatic. If you understand how DNS works and have a need requiring a different configuration, you can change the setting to ISP's DNS or Custom.