Sonos couldn't complete swap Ace/Arc

This worked thank you!

Select + Add TV audio move to get started. I don't have this option Android . I know what the problem is I didn't have an iphoneI 🤔🤬

I have my Arc set up with 2 Ones and a subs. does anyone if this is an issue?
 

 

I’ve got the solution. I assume you are using the arc with ethernet cable like me and the Wifi is disabled. So you just have to enable the wifi on arc in the Settings in the app, and it will work.

 

This resolved my issue, thanks!

Sadly this solution doesn't fix it for me. I have no idea what to do. My arc is connected via ethernet as is the sub gen 2 and my two rear Sonos One surrounds. I successfully added my TV source but everytime I hit swap same error as others have pointed out. I don't know why that solution would work anyway. 

Edit: oddly turning on enable wifi for my arc fixed it. I don't get why this would be required since it says you can use these without wifi. And oddly there seems to be no issue whether I enable my VPN on my phone or not even in the middle of a stream. 

The Sound Swap between the Arc and Ace headphones uses the 5GHz channel generated by the Arc. Although the Ace headphones do not connect over WiFi as other Sonos products they do communicate with the Arc in that manner. In that manner they behave in a similar fashion with the Arc as do bonded surrounds and/or a sub.

Please don’t over think the process. The Ace headphones will not connect to your WiFi network.

Thanks for the behind the scenes info, helpful to know. Running on a lot of sleep debt so apologies for the convoluted reply. 

Concise and accurate description. Back in the day, you could create a peer-to-peer network between two Windows machines over Wi-Fi. That is analogous to what Arc has always done to communicate with a bonded sub and/or surrounds … and now that mechanism is used for Arc-Ace handoff.

Fixed.

I tried everything in this thread, nothing worked. Removed tv audio swap. Checked for firmware update, there was a new one, it took forever but when it came back restarted app, readded tv swap, boom. Works.

Was it the new firmware or something else? Whatever!

I’d say it was the update to the Ace headphones of which I received two. The App and Firmware versions have been the same during my initial try which I didn’t expect the swap feature to work (which it didn’t). After the 2nd Ace update swap worked with great success!!! All the things you did while doing so never hurts as good trouble shooting but IMO they were coincidental to the swap feature working for you. Here again all said is just my speculation. Enjoy your Sonos Ace headphones 😊!

This worked 100% - great suggestion as I was very frustrated my ACE swap did not work out of the box.