I am using a Bluetooth USB dongle, and it stopped working since I upgraded to MacOS 12.2 Monterey. In my case I found a solution that works: Every-time I boot the system I have type on terminal: sudo pkill bluetoothd type your Mac password Then turn on bluetooth, and it works again.

I am using a Bluetooth USB dongle, and it stopped working since I upgraded to MacOS 12.2 Monterey. In my case I found a solution that works: Every-time I boot the system I have type on terminal: sudo pkill bluetoothd type your Mac password Then turn on bluetooth, and it works again.