Bluetooth has stopped working on Mac

• Start by double check that your Bluetooth is turned on via the Bluetooth icon on the upper right part of your screen, next to Wi-Fi and Time Machine.
• Shutting down your Mac completely. Visit the Apple Menu and select Shut Down to get started. Disconnect all your accessories that need dongles or cables.

• Now restart your Mac and slowly attach accessories – Bluetooth and otherwise – checking to make sure the connections work each time. If your Bluetooth works as expected for a device, then one of your accessories may be causing problems. Find the problematic device and replace it if possible.

• If this doesn’t work, try alternative Bluetooth devices to see if they function – it could be an issue with older accessories or similar problems.