**As an Apple Certified Technician with over a decade of experience,** I've encountered and resolved numerous issues related to AirDrop on Mac. Here's a comprehensive analysis of why AirDrop may not be working on your Mac, along with detailed troubleshooting steps:

1. Ensure That AirDrop Is Enabled:

- Verify that AirDrop is turned on. Navigate to the Finder > Go > Airdrop.
- Select "Allow me to be discovered by:" and choose either "Everyone" or "Contacts Only."

2. Check Firewall Settings:

- Open System Preferences > Security & Privacy > Firewall.
- Click the Firewall Options button.
- Ensure that the checkbox for "Block all incoming connections" is unchecked.

**3. Disable Private Relay (If Applicable):**

- Navigate to System Preferences > Apple ID > iCloud.
- Select "Private Relay" and disable it.
- Restart your Mac.

4. Inspect Network Connectivity:

- Confirm that your Mac is connected to a stable Wi-Fi or Bluetooth network.
- Check if other devices on the network can detect your Mac via AirDrop.

5. Reset Wi-Fi and Bluetooth:

- Navigate to System Preferences > Network.
- Click on your Wi-Fi network and select Advanced.
- Choose the "TCP/IP" tab and click the "Renew DHCP Lease" button.
- Repeat this process for all Wi-Fi networks and Bluetooth devices.

6. Reset NVRAM and SMC:

- Shut down your Mac.
- Press and hold the following keys: Option, Command, P, and R.
- Release the keys after about 20 seconds.
- Start up your Mac.

7. Check for Software Updates:

- Navigate to System Preferences > Software Update.
- Install any available updates.

8. Reinstall macOS:

- As a last resort, you may need to reinstall macOS.
- Create a backup of your important files.
- Restart your Mac while holding down the Command + R keys.
- Select "Reinstall macOS" and follow the prompts.

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If the aforementioned troubleshooting tips didn't fix your AirDrop woes, try these: Sign out of iCloud on your devices and then sign back in. Restart your Mac and iOS devices. Force restart an iOS device by holding the Sleep/Wake and Home button.read more >>