Published 2023-06-28 by TechNet New England
Bluetooth issues on Mac are commonly fixed by resetting the Bluetooth module or removing and re-pairing the device. ## Fix 1: Toggle Bluetooth Off and On 1. Click the **Bluetooth icon** in the menu bar. 2. Turn Bluetooth off. 3. Wait 10 seconds. 4. Turn it back on. ## Fix 2: Remove and Re-pair 1. Open **System Settings > Bluetooth**. 2. Find the device, click the **info** button (the "i" icon). 3. Click **Forget This Device**. 4. Put the device in pairing mode and pair it again. ## Fix 3: Reset the Bluetooth Module 1. Hold **Shift + Option** and click the **Bluetooth icon** in the menu bar. 2. A debug menu appears. Click **Reset the Bluetooth module**. 3. Restart your Mac. On newer macOS versions, this debug menu may not be available. In that case, use Terminal: ```bash sudo pkill bluetoothd ``` macOS will restart the Bluetooth daemon automatically. ## Fix 4: Delete Bluetooth Preferences 1. Open Finder and press **Command + Shift + G**. 2. Type: `/Library/Preferences` 3. Find and delete: `com.apple.Bluetooth.plist` 4. Restart your Mac. macOS will recreate the file with default settings. ## Fix 5: Check for Interference Bluetooth operates on 2.4 GHz, the same frequency as some Wi-Fi networks, USB 3.0 devices, and microwave ovens. If Bluetooth is unreliable, try: Disconnecting USB 3.0 devices or using a USB extension cable to move them away from the Mac. Moving the Bluetooth device closer to the Mac. Switching Wi-Fi to 5 GHz if possible. ## When to Contact IT If Bluetooth hardware is not detected at all (no Bluetooth icon in menu bar, no Bluetooth section in System Settings), the hardware may have failed. On managed Macs, Bluetooth may be restricted by an MDM profile.