Air Display For Mac

Thank you for your reply, but as you can see from my initial post the devices in question meet the requirements, and I have used them successfully before. I can also see the Airplay icon in the menubar. The firewall is currently off.

First, make sure your Mac is connected to the same WiFi network your Apple or smart TV is. Next, find the video you want to display on AirPlay — either on Safari, QuickPlayer, etc. Mirror your desktop using AirPlay Mirroring. Click the AirPlay icon in the menu bar, then choose your Apple TV. When an AirPlay display is active, the icon turns blue. In some cases, you can use an AirPlay display even if your MacBook Air isn’t on the same Wi-Fi network as Apple TV (called peer-to-peer AirPlay).To use peer-to-peer AirPlay, you need an Apple TV (3rd generation rev A, model. Air Display is the easiest way to turn almost any spare screen into an extra display for your computer. Wirelessly connect to an iPad or Android device from your laptop to create the ultimate road-warrior workstation.Or repurpose any nearby Mac or Windows PC to give yourself more screen real estate for your main Mac.


AirMac

The problem is that there is no option to turn Airplay 'On' from within the Display preferences. The only option is 'Off.'

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Air Display For Mac

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I genuinely do appreciate your attempt at assistance, but in looking through the various forums and discussions (there are dozens) with others having this exact same issue, I continue to see the same 2-3 articles linked, none of which actually address the issue. The problem is not the inability to stream or connect, the problem is that there is no option to turn Airplay 'On' on the Mac. That functionality seems to have been disabled upon the upgrade to High Sierra.