Cannot connect to AppleTV after Big Sur update

I just update to Big Sur and Airplay to Apple TV is no longer working. Get message that I cannot connect to AppleTV. I have tried all of the troubleshooting advice including same WiFi network, Firewall settings, rebooting routers, modem, appleTV. Any suggestions.

iMac 21.5″ 4K, macOS 11.0

Posted on Nov 15, 2020 6:24 AM

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Posted on Jan 31, 2021 7:57 AM

Same issue and fixed it. I had same issue. Upgraded to Big Sur and then was suddenly unable to screen mirror to any of the 3 Apple TVs. I would get a message "unable to connect". As someone suggested, I needed to "authorize the computer" by signing into iTunes or Apple TV app. Once I signed in using Apple ID and Password, on the computer, I was now able to screen mirror to all Apple TVs.

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Cannot connect to AppleTV after Big Sur update

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