AirPlay Display
Why won't my MacBook Air let me turn on AirPlay Display? Already checked firewall, but it's not the problem.
MacBook Air 13″, macOS 11.2
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Do you have any AirPlay compatible devices nearby connected to the same Wi-Fi Network as your MacBook Air? If YES then when you click on AirPlay Display then you will see those options. If you do not have other AirPlay compatible devices present on the same Wi-Fi Network then you will not see any other option except OFF.
Axel F.