To make your Fire TV Stick discoverable by your Mac, you need to install a dedicated receiver that supports Apple’s AirPlay feature on your Fire TV Stick. Streaming from Mac isn’t straightforward even while using a streaming service since it doesn’t support Mac casting right out of the box. Note: Regardless of the device you’re casting from, ensure it’s on the same Wi-Fi network as your Amazon Fire TV Stick before you initiate the screen mirroring process.
