Q: MAC and Apple TV/Airplay

Hello, Allan.  

Thank you for visiting Apple Support Communities.  

I understand that you are unable to AirPlay mirror from your Mac to your Apple TV.  I would need a little more information on what year model and type of Mac you are using to provide a better answer.  However, I would make sure that your Mac meets the system requirements for using AirPlay.  If it does, take a look at the section labeled Get Help in the article below.  

Requirements for using an AirPlay display

Minimum requirements if your Mac and Apple TV are on the same network:

 

• Apple TV (2nd generation or later) with the latest Apple TV software
• Any of these Mac computers with OS X Mountain Lion v10.8 or later:
  • iMac (Mid 2011 or later)
  • Mac mini (Mid 2011 or later)
  • MacBook Air (Mid 2011 or later)
  • MacBook Pro (Early 2011 or later)
  • Mac Pro (Late 2013 or later)

Use AirPlay to see your Mac screen on an HDTV

-Jason H.