Screen Mirroring over Airplay no longer working on MacOS 15.2

sid187 wrote:

So it turns out it's because I have a network/content filter called Lulu installed. After I disabled it in network settings, the mirroring started to work again.

Sounds like a Lulu bug to me. Like I said, Lulu may need an update for Sequoia 15.2.

This led me to checking on Trip Mode. It wasn't actively blocking traffic but I went to Advanced Firewall Settings and it was Enabled under Filters & Proxies. I disabled it and Air Play was able to connect to my Apple TV. You might be able to disable Little Snitch in the same place instead of uninstalling it.

I had Cisco AnyConnect Socket Filter. I tried disabling it in System Settings -> Network -> VPN & Filters, but it has re-enabled itself automatically a few seconds later. I also tried clicking on the - button to remove it, but it came back automatically within a few seconds. I ended up using Finder to delete it. Now screen mirroring works fine.

@sid187. Thanks for this Tip, the same thing was happeing to me, Disabling LuLu fix the problem!!

Question: Have you left or installed LuLu for this reason or have you opted for other solution?

Thanks and Happy New year!

I had this same issue. It's been driving me crazy. For me it ended up being Little Snitch. Disabling it lets me use Airplay.

I too didn't notice this as an issue until last night when I was trying to screencast to my Samsung living room tv. Did so much research all over the internet and tried disabling Lulu and Little Snitch apps. Tried restarting both tv and Macbook Pro M3 and still had issues. The devices were communicating but I would only get a black screen on the tv. Tested other devices around the house including phones and tablets. All screen casted with no issues at all. So it is something with the latest update to version 15.2 of OSX. So after trial and error the best solution I found was going into the settings on my laptop and disabling the Apple Firewall. Who would've known right? So I hope Apple investigates this issue and resolves it with it's latest software update. I hope this helps but yes, disable Apple Firewall. I don't recommend it, but for the time being if you are trying to screen cast it is your temporary solution.

I had a similar problem. In my case, I was having trouble using screen mirroring to connect my MacBook Pro (running macOS 15.2) to my MacBook Air. As a temporary workaround, I turned off the firewall on my MacBook Pro while I was starting screen mirroring.

Today, macOS 15.3 was released, so I updated to this version and found that I could now start screen mirroring even with the firewall on!

Same issue after upgrading to 15.2 on my MacBook Pro 13. I was able to get airplay to work after disabling Firewall network settings, airplay to monitor, re-enable firewall.

Thanks, disabling the firewall, connecting to airplay and then re-enabling the firewall worked for me as well. MacOS 15.2 Intel 16" MBP.

Same thing happened to me with my MacBook Air M3 and Hisense Tv.

when I turned apple firewall off then airplay starts working perfectly however with firewall on it cannot work at all

Disabling the Cisco AnyConnect Content Filter in Network settings solved my problem

For me it started working again after uninstalling Little Snitch. Sigh.

This fixed it for me too 👍 (had to google how to turn off the apple firewall, but after I did that, i was able to mirror again)

This now works after 15.3 update