After searching forums and the web for days I still have not found an answer so here by an independent post: My MBP Retina shows no airplay icon and devices not available under Preferences>Display When trying to connect Apple TV to iTunes library, it begin loading and shows the name of my iTunes library but after one minute, error message: ‘Could not connect to iTunes Library’. Find it strange that Apple tv can 'see' the name of my iTunes Library but can’t connect to it. Same goes for iPhone and iPad when trying to connect through Remote App to MBP iTunes. iPhone and iPad connects perfectly to Apple tv with airplay, however they are not able to connect to my MBP Retina and iTunes over wifi. Have…: - 2013 Macbook Pro Retina with ML, latest update - Apple TV3, latest OS - iPhone5, latest iOS - iPad2, latest iOS - Have turned on Home Sharing in iTunes with same ID and all devices connected to same wifi - Have followed Troubleshooting Home Sharing but with no result - Have tried switching off Firewall on MBP but with no result - Have tried connecting Apple tv via cable to router, no result - Have uninstalled antivirus programs but with no result - Have rebooted, MBP, router, apple tv but with no result - Uninstalled Endpoint Security VPN - Tried to Disable IPv6, no luck Anyone up for a challenge? Many thanks!!!