MacBook not out-putting sound to Bluetooth devices I have a MacBook running macOS Sierra which has been successfully connected to my Logitech Bluetooth audio device.  Recently it stopped working.  Specifically, in sys-prefs/sound it won't select the device.  In other words, the Bluetooth connection is made, but it won't set as a sound device.  I checked this with other Bluetooth sound devices from other manufacturers, so I believe it's a general Bluetooth audio issue.

Does anybody have any insight into this?
Your question doesn't specify what you've tried to resolve this. Have you tried resetting things (or unpairing) and pairing again?


On the MacBook go to System Preferences > Bluetooth and right-click on the Logitech device and select Remove
On the Logitech device, follow the instructions on how to reset it
Now go through the process of pairing them again