Google Home requires an active internet connection to work. This means you need to connect Google Home to Wi-Fi before you can use it to play music, connect to wireless devices, check calendar events, get directions, make calls, check the weather, and more.
If your Google Home doesn't have a good internet connection or if connected devices aren't responding to your Google Home commands, this could be caused by:
Fortunately, since Google Home is a wireless device, there are a few places where we can find a potential solution to the problem of the device not being able to connect to Wi-Fi. Not only on the device itself, but also on nearby devices that are on the same network.
This should be obvious, but Google Home doesn’t know how to get to the internet until you tell it how to connect to your Wi-Fi. In other words, nothing will work on your Google Home until you set it up with the Google Home app.