Mac won't mirror AppleTV onto Sony TV

Hi there AlcabeCT,

From the information you entered, it looks like your Mac is running outdated software. If AirPlay isn't working as expected, try the steps below to see if they resolve the issue for you:

After each step, see if you still need help. 

1. Make sure that your AirPlay-compatible devices are turned on and near each other.

2. Check that the devices are updated to the latest software and are on the same Wi-Fi network. 

3. Restart the devices that you want to use with AirPlay or screen mirroring.

You'll find those steps and more guidance here: If screen mirroring or streaming isn't working on your AirPlay-compatible device - Apple Support

For more help with updating your Mac, have a look at this support article: Update macOS on Mac - Apple Support

Take care.

Hi AlcabeCT,

Thanks for following up. Let's get in touch with support next for some additional options. Get Support

Cheers.