When chromecast doesn't work?

[Yuvraj]

Hi all, I would like to ask you a problem in relation to my studies, and my future job. when chromecast doesn't work? Please, give me your answer but it is not very urgent.

[Cody]

Initial checklist

First, make sure:

Chromecast is powered on and plugged into a wall outlet.
The  LED light on the side of the Google Home device is white.
You're using the most recent version of the Google Home app from a supported iOS or Android device.
The Chromecast device is within 15 - 20 ft of the mobile device or tablet you're using to set it up.