Hi ​@RobbertM 

Welcome to the Sonos Community!

Sorry to hear of this issue you are having with your macOS device not connecting to your Sonos system after an OS update.

Please try uninstalling the Sonos app from your Mac and reinstalling it - this will ensure that it still has the permissions needed to operate.

If this does not work, I recommend you get in touch with our technical support team who have tools at their disposal that will allow them to give you advice specific to your Sonos system and what it reports.

I hope this helps.

MacOS has a new option that Sonos docs (and support) seem unaware of: “Local network” permission needs to be granted to the app for it to see anything on your local network.

Running into this today for first time trying to connect via my MacBook app with latest upgrade to 15.2.    Was immediately faced with the firewall message and verified the system was in the list.  No luck.   Tried uninstalling and reinstalling macOS app.    Made sure firewall settings included Sonos.   Still cannot find my existing system … I have 8+ Sonos devices all showing active and connected on my eeros mesh network.  Mac is connected to same network.   “Not Connected” is continued outcome.    It was working fine prior to macOS upgrade.   Works fine on iPhone/IOS current version.    Not sure I can address what “controlav” is referring to above.

   HELP SONOS!!!

Hi ​@ctsisson62 

Welcome to the Sonos Community!

Sorry to hear you are having issues too!

If you don’t know how to adjust the permissions for the app, please remove it from your Mac and reinstall it - the system should prompt to to allow the needed permissions.

A quick internet search produced the following, however:

Failing that, I recommend you get in touch with our technical support team who have tools at their disposal that will allow them to give you advice specific to your Sonos system and what it reports.

I hope this helps.

Thank you Corry P at Sonos.     That suggestion fixed the issue.     Working as expected now.   

You are welcome...

Don’t worry ​@controlav, I won’t take the credit! You got Best Answer.

Thanks Corry P and all others for given advice.

I reinstalled and it checked all my settings, but it did’nt work.

Miraculously the following day it did work. Huh?

But today, it does not work anymore: Huh?

And  I check

• File sharing is on
• Sonos has full disk access
• Firewall is on, but Sonos is allowed all incoming connections

I am totally dis-satisfied with Sonos app for MacOs. 

I have the feeling I have to be an ICT-Engineer to get it running, and that should not be so!

Have a nice day.

Hi ​@RobbertM 

That sounds annoying! But, also a bit promising!

Please try restarting the MacBook - it may make a difference. It may also help to reboot your router by switching it off for at least 30 seconds.

Do you have multiple WiFi Access Points? If so, and any of them are WiFi Boosters or WiFi Extenders, you have just found out why they are not supported - please turn them off to see if things improve when they are not involved.

I hope this helps.

You don’t mention the “Local network” permission, which is critical to be enabled.

Dear all, again: thanks,

Well, yeah: local network permissions is also on.

But miraculously: today it is working again.

So in total: 4 places one has to adapt it’s systems settings to accommodate Sonos. I think, this should be done by the app, automatically when installing. And if not: then provide better instructions, it is all very difficult to find.

After the mishap in the app with a local library, this is again not good at all.

Luckily, the hardware is working fine and also the android app.

Have a nice day.

Regarding the “Local network” setting, Apple do not allow apps to set it (for security reasons) nor to read its value (because they enjoy their customers experiencing pain). The theory is that the first time the app tries to access the local network, the OS asks you to give the app this permission. This theory is the same on iOS, but it has the exact same problems: it doesn’t always ask, and in the case of OS or app updates, sometimes the setting is lost and the app quits working, in a very unobvious way. Also if people decline the option then they will never be asked again, and the app will never work.

If Apple allowed apps to at least determine if the setting is on or not, it would really help apps like Sonos, but they refused to when it appeared on iOS and continue to refuse to today on MacOS.

And yes, I am bitter and twisted about this setting, and have been since its introduction.