However, the Chromecast still requires an internet source through a host (hotspot, router, or ethernet), as shown in the Google image below. Google certainly improved things when they added Guest Mode, which allows Chromecast to connect to any Google casting capable device that doesn’t have Wi-Fi internet. Connecting Devices to Chromecast without Internet However, when internet access is not an option, you can create a WLAN to use later without an internet connection, although that restricts what Chromecast can do. Plenty of sources can provide wireless internet while traveling, including Hotel Wi-Fi, portable hot spots, smartphone hot spots, ethernet connections, and more.

Use Connectify Hotspot on a laptop via an active ethernet connection.

Use an active ethernet port, which requires a special Chromecast power adapter.Use a travel router for WLAN and your device to connect to Chromecast.

Use a mobile hotspot as the router and a second device to connect to Chromecast.

Use WLAN without internet (following pre-setup procedures) for mirroring a device.

You can use Chromecast without a dedicated Wi-Fi source by using one of the following options:

Directv app on chromecast