If you’ve been able to play videos normally in the browser you will definitely find the plugin here. Click the ‘Details’ button at the top right corner and then look for the Adobe plugin. To find out if that is indeed what is preventing audio from being cast to your TV, go to Chrome://plugins. Your problems are caused by Adobe Flash, the most unlikeliest of culprits.
For users who can cast video to their TVs from the Chrome browser but aren’t getting any audio, the problem isn’t with the Chromecast but with the Chrome browser. If however you have trouble casting, the help available from Google isn’t going to help you much since it mostly just assumes you haven’t set the device up properly. You can cast to Chromecast using just your browser and if all goes well you will never experience a single hitch with your device.
The Chromecast is easy to set up and easy to use from practically any device.
