You'll need a phone or tablet to set up Chromecast. To set up your Chromecast, navigate through set up Chromecast. Tell us a little more about where you're having trouble:I can't connect to the Wi-Fi network that I'm selecting.Note: You may need to change your router settings before Chromecast can communicate with your network. Which of the options below best describes your issue?I don't see my Wi-Fi network listed during setup.Wi-Fi not listedI can't find my Chromecast listed in the Google Home appWhat stage of setup are you stuck on?I'm having trouble physically connecting my Chromecast.Tell us more about where you're having trouble.I don't see the Chromecast home screen on my TV.I don't see my home screenI'm seeing a yellow exclamation mark error screen on my Chromecast.Yellow exclamation mark