I cannot find a way to view this information anymore, my last option was iPad app but it updated automatically so I’ve lost the pre version 8.0 update can we login and check using the speakers IP address, maybe worth a check? 

Sorry tried using speakers IP address to login, via web interface but was not able to 

Thanks for the suggestions! I was able to look at my client list in my router and confirmed the mac address of each of my sonos devices showed up as “wired” connections, rather than wireless. Which I believe means they are working through the sonosnet . 

Yes, I too can see a wired icon next to my Sonos devices set up for TV via Deco app  but would be nice at Sonos level to have this info visible  

Use my iOS app, will show you all of this and more: https://apps.apple.com/us/app/phonos-plus/id1511326524