Also, It is important that both the devices are on the same Wi-Fi network for it to work. Make sure the screen mirroring is enabled (it usually is enabled by default), you can check by going to Settings > System > Screen Mirroring on your Roku and making sure it is set to Prompt or Always. So, today, I’ll show you how to cast any video on Roku from Windows, Android, and even Mac.
So, if you want to cast videos to Roku from other video channels or even the videos you may have in the local storage you’ll have to use the combination of screen mirroring and third-party apps. Unfortunately, you can’t use the DIAL protocol on anything except YouTube and Netflix.