您的朋友想通过AirDrop向您发送一些文件，但您的Mac不会显示在他们的设备上。你做什么工作？首先(First)，确认您的Mac是有问题的设备还是对方的设备。
尝试通过AirDrop将文件从另一台设备传输到您的Mac。如果设备检测到您的Mac，则您朋友的设备就是问题所在。但是，如果您的Mac没有出现在所有Apple设备上，那么您的Mac绝对是罪魁祸首。本教程中的故障排除修复程序应该让您的 Mac 的 AirDrop 再次工作(get your Mac’s AirDrop working again)。
1. 重新启用AirDrop并检查可发现性设置(Check Discoverability Settings)
如果您的Mac未配置为接收AIrDrop请求，它可能无法出现在其他Apple设备上。(Apple)这可能是因为AirDrop已关闭，或者发件人不是可识别的联系人。也就是说，他们的电话号码或 iCloud 电子邮件地址不会保存在“通讯录(Contacts)”应用中。
首先，检查您的Mac上是否启用了AirDrop。打开Mac的控制中心(Control Center)并选择AirDrop将其打开。
(Discoverability)如果文件传输功能出现临时故障，也可能会出现可发现性问题。在这种情况下，请禁用AirDrop并将其重新打开。如果问题仍然存在，请检查您的AirDrop设置并确保所有人都能发现您的Mac，而不仅仅是您的联系人。
打开 Mac 的控制中心(Control Center)，点击AirDrop 旁边的向右箭头图标，然后在可发现性选项中选择(right-facing arrow icon)所有人(Everyone)。
或者，打开一个Finder窗口，在侧边栏上选择AirDrop，点击允许我被(Allow me to be discovered by)下拉选项发现，然后选择所有人(Everyone)。
2.检查蓝牙和Wi-Fi状态
要通过AirDrop(AirDrop)发送和接收数据，发送者和接收者必须打开蓝牙(Bluetooth)和Wi-Fi 。如果您的MacBook没有出现在其他Apple设备的(Apple)AirDrop窗口中，请检查您的 Mac 的蓝牙(Bluetooth)和Wi-Fi是否已打开。
AirDrop不需要互联网连接，因此您不必连接到Wi-Fi网络。只需启用Wi-Fi。
在 Mac 的状态(Status)菜单上选择Wi-Fi 图标(Wi-Fi icon)并确保Wi-Fi已打开。
如果菜单栏上没有Wi-Fi图标，请转到系统偏好设置(System Preferences)>网络(Network)> Wi-Fi > 并选择打开 Wi-Fi(Turn Wi-Fi On)。
对蓝牙(Bluetooth)执行相同操作，并检查是否可以恢复 Mac在其他Apple设备 上的AirDrop可见性。
在状态菜单中选择蓝牙图标(Bluetooth icon)并打开蓝牙(Bluetooth)。
如果您的Mac在菜单栏上没有蓝牙(Bluetooth)图标，请转到系统偏好设置(System Preferences)>蓝牙(Bluetooth)，然后选择打开蓝牙(Turn Bluetooth On)。
3. 将您的设备移近一点
根据 Apple(According to Apple)的说法，AirDrop在发送和接收设备之间的距离在 30 英尺（9 米）以内时效果最佳。将Mac移近设备（反之亦然）并等待几秒钟。
如果您的Mac仍未显示在发件人的设备上，请关闭AirDrop，重新打开并再次检查。确保您仍然保持推荐的接近距离。
4.确认设备兼容性
(AirDrop)如果您的设备不满足该功能的软件和硬件要求，AirDrop将无法正常工作。首先，AirDrop适用于 2012 年或之后发布的Mac机型（2012 Mac Pro除外）。此外，兼容的Mac机型必须运行OS X Yosemite (10.10.5) 或更高版本。
打开Apple 菜单(Apple menu)并选择About This Mac以检查 Mac 的软件和硬件配置。
如果您的Mac在满足这两个要求后仍未显示在AirDrop上，请检查其他设备的兼容性。AirDrop旨在在运行 iOS 7 或更高版本的 iPhone、iPad 和 iPod touch 上发挥最佳功能。
前往“设置”(Settings) > “通用(General)” > “关于(About)”以检查您的 iPhone 或 iPad 的软件版本。
如果您的设备不符合 AirDrop 的要求，请更新您的设备——前往“设置”(Settings) > “通用(General)” > “软件更新”(Software Update)以安装 iOS 更新。
5.禁用请勿打扰
有报道称，启用“请勿打扰(Disturb)”可能会干扰 AirDrop 在 macOS 中的可发现性。关闭勿扰模式(Disturb)并检查您的 Mac 是否显示在其他Apple设备上。
打开控制中心并选择请勿打扰(Do Not Disturb)将其关闭。
您还可以从 Mac 的通知设置中禁用该功能。转到System Preferences > Notifications & Focus > Focus > Do Not Disturb并关闭Do Not Disturb。
6.检查防火墙设置
如果Mac 的防火墙(Mac’s firewall)阻止所有传入连接，您将不会收到AirDrop请求。检查防火墙配置并调整设置以允许所有传入连接或请求。
- 转到系统偏好设置(System Preferences)>安全和隐私(Security & Privacy)，然后转到防火墙(Firewall)选项卡。点击左下角的锁定图标，然后使用(lock icon)Touch ID或密码解锁“安全(Security)和隐私(Privacy)”偏好设置。
- 选择防火墙选项(Firewall Options)。
- 取消选中阻止所有传入连接(Block all incoming connections)并选择确定(OK)。
关闭 System Preferences窗口，禁用AirDrop，重新打开它，然后检查您的Mac现在是否可以通过AirDrop发现。
7. 重启你的 Mac
如果到目前为止突出显示的所有故障排除步骤都无法解决问题，请关闭Mac并重新打开。请记住(Remember)关闭所有活动的应用程序，以免丢失任何未保存的数据。
在Mac 的菜单栏中(Mac’s menu bar)选择Apple 标志(Apple logo)，然后在 Apple 菜单中选择重新启动(Restart)。
这将刷新 macOS 并可能修复与 OS 相关的故障，这些故障掩盖了Mac的AirDrop可见性。您还应该考虑重新启动不会通过AirDrop发现您的(AirDrop)Mac的其他设备。
8. 更新或降级你的 Mac
macOS 更新附带错误修复、新功能和性能改进。如果AirDrop由于 Mac 操作系统中的错误而出现故障，安装最新的 macOS 更新应该可以解决问题。
打开System Preferences，选择Software Update并安装页面上可用的任何更新。
macOS 升级也因破坏新发布的一些Mac功能而臭名昭著。如果其他设备在安装 macOS 更新后停止通过AirDrop发现您的(AirDrop)Mac，请将问题报告给Apple 支持(Apple Support)。
同时，您可以将您的 Mac 降级到以前的版本，并在(downgrade your Mac to a previous version)Apple发布稳定版本时重新安装升级。
9. 在 Mac 上重置网络设置
Mac 的Wi-Fi设置问题可能会影响AirDrop和其他与网络相关的功能。请按照以下步骤刷新 Mac 的Wi-Fi。
- 进入系统偏好设置(System Preferences)>网络(Network)，在侧边栏选择Wi-Fi，然后选择列表下方的减号图标。(minus icon)
- 选择应用(Apply)以保存更改。
- 点击加号图标可将(plus icon)Wi-Fi重新添加到连接列表中。
- 在“接口”下拉菜单中选择Wi-Fi 。
- 选择创建(Create)。
- 选择应用(Apply)以将Wi-Fi网络模块恢复到您的Mac计算机。
10. 重置 Mac 的蓝牙
蓝牙问题(Bluetooth issues)有时是AirDrop故障的原因。重置 Mac 的蓝牙(Bluetooth)设置可以解决蓝牙(Bluetooth)和AirDrop问题。
- 转到Finder > Applications > Utilities并双击Terminal。
- 在终端控制台中粘贴sudo pkill bluetoothd并按回车(Return)键执行命令。
- 输入 Mac 的密码，然后按Return继续。
这将断开所有蓝牙(Bluetooth)连接和设备，刷新 Mac 的蓝牙(Bluetooth)模块，并有望解决AirDrop问题。
对其他设备进行故障排除
如果在 Mac 到 Mac 的传输中您的Mac仍然没有出现在 AirDrop 上，请在另一台(Mac-to-Mac)Mac上尝试(AirDrop)这些(Mac)故障排除修复程序。对于 iOS 设备，请参阅我们关于修复 iPhone 到 Mac AirDrop 问题(fixing iPhone-to-Mac AirDrop issues)的教程以获取更多解决方案。
MacBook Not Showing up on AirDrop? 10 Ways to Fix
Your friends want to send you some files via AirDrop but your Mac won’t show up on their devices. What do уou do? First, confirm whether your Mac is the problеmatic device or the other party’s.
Try transferring files to your Mac from another device via AirDrop. If the device detects your Mac, your friend’s device is the problem. However, if your Mac doesn’t show up on all Apple devices, your Mac is most definitely the culprit. The troubleshooting fixes in this tutorial should get your Mac’s AirDrop working again.
1. Re-Enable AirDrop and Check Discoverability Settings
Your Mac may fail to appear on other Apple devices if it isn’t configured to receive AIrDrop requests. This could be because AirDrop is turned off, or the sender isn’t a recognized contact. That is, their phone number or iCloud email address isn’t saved in the Contacts app.
First, check that AirDrop is enabled on your Mac. Open your Mac’s Control Center and select AirDrop to turn it on.
Discoverability issues may also arise if there’s a temporary glitch with the file transfer functionality. In that case, disable AirDrop and turn it back on. If the problem persists, check your AirDrop settings and ensure your Mac is discoverable by everyone—not just your contacts only.
Open your Mac’s Control Center, tap the right-facing arrow icon next to AirDrop, and select Everyone in the discoverability options.
Alternatively, open a Finder window, select AirDrop on the sidebar, tap the Allow me to be discovered by drop-down option and select Everyone.
2. Check Bluetooth and Wi-Fi Status
To send and receive data via AirDrop, the sender and recipient must have Bluetooth and Wi-Fi turned on. If your MacBook isn’t showing up in the AirDrop window of other Apple devices, check that your Mac’s Bluetooth and Wi-Fi are turned on.
AirDrop doesn’t need internet connectivity, so you don’t have to be connected to a Wi-Fi network. Just have Wi-Fi enabled.
Select the Wi-Fi icon on your Mac’s Status menu and ensure Wi-Fi is toggled on.
If the Wi-Fi icon isn’t on the menu bar, go to System Preferences > Network > Wi-Fi > and select Turn Wi-Fi On.
Do the same for Bluetooth and check if that restores your Mac’s AirDrop visibility on other Apple devices.
Select the Bluetooth icon in the Status menu and toggle on Bluetooth.
If your Mac doesn’t have the Bluetooth icon on the menu bar, go to System Preferences > Bluetooth and select Turn Bluetooth On.
3. Move Your Devices Closer
According to Apple, AirDrop works best when the sending and receiving devices are within 30 feet (9 meters) of each other. Move your Mac closer to the device (or vice versa) and wait for some seconds.
If your Mac still doesn’t show up on the sender’s device, turn off AirDrop, turn it back on and check again. Make sure you still maintain the recommended proximity distance.
4. Confirm Device Compatibility
AirDrop won’t work correctly if your devices don’t meet the feature’s software and hardware requirements. For starters, AirDrop works on Mac models released in 2012 or later (except the 2012 Mac Pro). Additionally, compatible Mac models must be running OS X Yosemite (10.10.5) or later.
Open the Apple menu and select About This Mac to check your Mac’s software and hardware configurations.
If your Mac doesn’t show up on AirDrop despite fulfilling both requirements, check the compatibility of the other device(s). AirDrop is designed to function optimally on iPhones, iPads, and iPod touch running iOS 7 or later.
Go to Settings > General > About to check your iPhone or iPad’s software version.
Update your device if it doesn’t meet AirDrop’s requirement—go to Settings > General > Software Update to install iOS update.
5. Disable Do Not Disturb
There are reports that enabling Do Not Disturb could mess with AirDrop’s discoverability in macOS. Turn off Do Not Disturb and check if your Mac shows up on other Apple devices.
Open the Control Center and select Do Not Disturb to turn it off.
You could also disable the feature from your Mac’s notifications settings. Go to System Preferences > Notifications & Focus > Focus > Do Not Disturb and toggle off Do Not Disturb.
6. Check Firewall Settings
You won’t receive AirDrop requests if your Mac’s firewall is blocking all incoming connections. Check the firewall configuration and adjust the settings to allow all incoming connections or requests.
- Go to System Preferences > Security & Privacy and head to the Firewall tab. Tap the lock icon in the bottom-left corner and unlock the Security & Privacy preferences using Touch ID or password.
- Select Firewall Options.
- Uncheck Block all incoming connections and select OK.
Close the System Preferences window, disable AirDrop, turn it back on, and check if your Mac is now discoverable via AirDrop.
7. Reboot Your Mac
If all troubleshooting steps highlighted so far fail to fix the problem, shut down your Mac and turn it back on. Remember to close all active applications so you don’t lose any unsaved data.
Select the Apple logo in your Mac’s menu bar and select Restart in the Apple menu.
That’ll refresh macOS and possibly fix OS-related hitches masking your Mac’s AirDrop visibility. You should also consider restarting the other device(s) that won’t discover your Mac via AirDrop.
8. Update or Downgrade Your Mac
macOS updates ship with bug fixes, new features, and performance improvements. If AirDrop is malfunctioning due to a bug in your Mac’s operating system, installing the latest macOS update should resolve the issue.
Open System Preferences, select Software Update and install any update available on the page.
macOS upgrades are also infamous for breaking some Mac features when they’re newly released. If other devices stop discovering your Mac on AirDrop after installing a macOS update, report the problem to Apple Support.
In the meantime, you can downgrade your Mac to a previous version and reinstall the upgrade when Apple releases a stable version.
9. Reset Network Settings on Mac
Problems with your Mac’s Wi-Fi settings could affect AirDrop and other network-dependent features. Follow the steps below to refresh your Mac’s Wi-Fi.
- Go to System Preferences > Network, select Wi-Fi on the sidebar, and select the minus icon below the list.
- Select Apply to save the changes.
- Tap the plus icon to re-add Wi-Fi to the list of connections.
- Select Wi-Fi in the “Interface” drop-down menu.
- Select Create.
- Select Apply to restore the Wi-Fi network module to your Mac computer.
10. Reset Your Mac’s Bluetooth
Bluetooth issues are sometimes the cause of AirDrop malfunctions. Resetting your Mac’s Bluetooth settings could fix Bluetooth and AirDrop problems.
- Go to Finder > Applications > Utilities and double-click Terminal.
- Paster sudo pkill bluetoothd in the Terminal console and press Return to execute the command.
- Enter your Mac’s password and press Return to proceed.
That’ll disconnect all Bluetooth connections and devices, refresh your Mac’s Bluetooth module, and hopefully fix the AirDrop problem.
Troubleshoot the Other Device
If your Mac still won’t show up on AirDrop in a Mac-to-Mac transfer, try these troubleshooting fixes on the other Mac. For iOS devices, refer to our tutorial on fixing iPhone-to-Mac AirDrop issues for more solutions.
