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Next, ensure that your home Wi-Fi network is active. You will need the network name (SSID) and password to connect your device. It’s recommended to position the Chromecast close to your Wi-Fi router for the best signal quality.
Accessing the Setup Website
Once your Chromecast is connected to your TV, it will display an on-screen prompting you to visit a specific website—commonly chromecast.com/setup. Open this site on your smartphone or computer's browser. This website contains the instructions and tools needed to complete your setup.