I have found a fix for this problem that I havent seen anywhere else on the internet. I hope this works for you.
For me the icon would only show up and work every couple months, and then it would dissapear again. I was trying to connect to my Sonos speakers, which work off of other devices but not itunes... After countless hours I found the issue in my settings.
Settings > Accounts > Family & Other Devices > [Sonos] > Change from standard account to Authorized User
Good luck
For me the icon would only show up and work every couple months, and then it would dissapear again. I was trying to connect to my Sonos speakers, which work off of other devices but not itunes... After countless hours I found the issue in my settings.
Settings > Accounts > Family & Other Devices > [Sonos] > Change from standard account to Authorized User
Good luck