Once connected, they should be able to ‘Cast to Chromecast’ just as you would normally do across a network.įor this pairing to work, the Chromecast device will generate a random four-digit code that’s then emitted as an audio signal to nearby devices, although human ears won’t be able to pick this up. Once an app that’s capable of streaming is opened on the guest’s device, it will search for the beacon in order to create a bridge. This works by utilising a Wi-Fi beacon built into the Chromecast. This allows the device to open up to guest access without that user needing to first establish a connection to your Wi-Fi network. You could very quickly check whether you're able to make this work by accessing 'Guest Mode', which was added several years later following the Chromecast's initial launch. Without updating to the lastest firmware version, it’s impossible to configure the device to work without a Wi-Fi connection. You’ll need to make sure that your Chromecast is running the latest version of its firmware before you start using it. You can still purchase and use a Chromecast if your connection is unreliable, or you need to use it without Wi-Fi for any reason. You can purchase a basic Chromecast device for around £30 if you benefit from an always-on internet connection, but this isn’t always essential. This problem has become even more pronounced during COVID-19, with Uswitch finding that five million Brits sustained outages for three hours or longer during the pandemic, with the average household experiencing a day of downtime throughout this period. Wi-Fi connections, however, have always been temperamental, especially if you’ve suffered from poor connection throughout your entire house. Best mesh Wi-Fi 2021: banish dead spots and boost your broadbandĬhromecast now supports 4K resolution as well as high-speed streaming, and boasts compatibility with a wide range of devices including almost all tablets and laptops.Best Wi-Fi routers and access points 2021: Get the strongest signal and top performance.

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