Mac Sequoia Sonos App Cannot Connect to System

I have no answers but wanted to add that I am also getting the “your computer’s firewall setting has changed” message when trying to access my One SL and Beam using the desktop app. I recently installed OSX 15 (Sequoia) as well. All was working fine for months (years) before the update. My firewall is off and always has been off.

Got mine working again by going to System Settings > Privacy & Security > Local Network and toggled Sonos off and then back on. Restarted the Sonos desktop app and now it connects. Weird.

@Surfdog_2003 - I was just as frustrated and saw your advice on toggling Sonos off and then back on and this solved my problem too.

I had tried all of the other “fixes” to no avail.

thank you.

I’ve got this issue now too.  Toggling Sonos under Local Network did not solve my problem.  Neither did any of the other “fixes.”  My laptop’s firewall is not active now, nor was it before.   I have multiple Sonos installations.  It worked fine at one yesterday.  Today I am in a different location and I get the errors described here.  This all used to work from my laptop just fine <sigh>.  It works fine from my phone, in both locations.

Any chance you have a mesh network? It sounds like a device that your controller is running on is on a different subnet than your speakers, now.

Even if not, have you submitted a system diagnostic within 10 minutes of experiencing this problem, and called Sonos Support to discuss it?

There may be information included in the diagnostic that will help Sonos pinpoint the issue and help you find a solution.

When you speak directly to the Support staff, they have tools at their disposal that will allow them to give you advice specific to your network and Sonos system.

No mesh network here.  In fact many of the speakers are on a wired network.  I guess I’ll give support a try when I have some time. 

I’ve also got the same issue since updating to MacOS 15. I’m moving constantly as a student between my student room and my parents home and each time sonos S1 app is saying there is an error with the firewall. Which wasn’t an issue at all before updating MacOS and isn’t an issue at all on my iPhone.

I already tried the to add the app to the firewall settings (I’m using Little Snitch and allowed all communication), which isn’t even turned on and added SonosS1 Controller to App Management. 

I am running Mac Sequoi 15.1.1 and cant connect to Sonos. It says there is a firewall problem, but I have changed the Firewall to allow Sonos, restarted etc about 10 times, same message comes up, allow Firewall Access. I have also re-installed Sonos to try that, same message. I have no other security on the macs. And the sonos works on my iphone, but not either of my laptops.

I would recommend that you submit a system diagnostic within 10 minutes of experiencing this problem, and call Sonos Support to discuss it.

There may be information included in the diagnostic that will help Sonos pinpoint the issue and help you find a solution.

When you speak directly to the Support staff, they have tools at their disposal that will allow them to give you advice specific to your network and Sonos system.

Yes thanks and I have done all that. First had a chat with a bot that was a timewaster, then did the diagnostic thing and called the help line which had an actual person. But the conversation was really just a sponge, with no actual help. It seems the helpline and support staff is more about appearances.