一个不完整的WiFi连接会一次又一次地停止服务，这可能会给您带来很大的不便。

罪魁祸首可能是任何事情，从过时的路由器和缓慢的互联网速度^{(slow internet speeds)}到不正确的计算机设置或互联网服务提供商端的巨大中断。

为了帮助您找出WiFi不断断开连接的原因，我们整理了一个解释器，其中列出了原因和解决方案，以帮助您恢复快速 WiFi^{(speedy WiFi)}服务。

为什么我的 WiFi 总是断开连接？^{(Why Does My WiFi Keep Disconnecting?)}

无论您是尝试发送重要电子邮件，还是想在 PC 或移动设备上进行电话会议^{( do a conference call on your PC or mobile device)}，WiFi连接中断都可能成为您生活的障碍。您的WiFi^(WiFi)不断断开连接的一些主要原因包括：

• 处于飞行模式
• 由于信号、 DNS^(DNS)服务器缓慢或数据包丢失而导致速度缓慢
• 过时的 WiFi 驱动程序软件
• 最近的更新产生了破坏WiFi连接的错误
• 电源管理问题
• 配置不当的无线适配器
• 路由器已过期或损坏
• 路由器^(Router)损坏或远离您的设备
• 对网络的干扰
• 大规模服务中断
• 处于互联网连接受限或没有互联网连接的区域
• WiFi驱动程序与您当前的操作系统版本不兼容

当您的 WiFi 不断断开连接时该怎么办^{(What to Do When Your WiFi Keeps Disconnecting)}

虽然您的WiFi^(WiFi)连接不断下降的原因有多种，但您可以自己解决其中的大部分问题。在我们进入更复杂的解决方案之前，请尝试其中一些快速检查，以便立即恢复您的WiFi并再次运行。

快速检查^{(Quick Checks)}

• 检查您的WiFi开关是否设置为On。
• 确保您使用的是正确的WiFi连接。
• 确保^(Make)路由器上的所有东西都按应有的方式插入。
• 检查路由器上的灯，看看是否有任何异常或不是绿色的。您可以使用路由器手册了解每个指示灯的含义以及如何解决任何问题。
• 将您的设备移近路由器，尤其是在有很多干扰的地方。您还可以使用WiFi范围扩展器来增强WiFi信号的强度。
• 将以太网^(Ethernet)电缆插入您的设备并检查连接是否再次牢固。如果有效，则问题出在无线信号上。
• 请与您的ISP核实您所在地区是否存在任何连接问题或服务中断。
• 移除任何可能干扰路由器的物体或电子设备。

• 更改路由器的WiFi通道，尤其是当您的网络倾向于与附近的网络重叠时。
• 重新启动您的计算机、移动设备或路由器以帮助重置网络设置，然后再次尝试连接到WiFi。
• 检查^(Check)您的计算机上是否有任何待处理的更新并安装它们。
• 删除^(Remove)并重新添加无线网络。
• 暂时禁用您的安全软件（防病毒），因为这可能与其他软件冲突，从而导致您的WiFi连接出现问题。
• 更新路由器的固件。如果您不确定如何执行此操作，请咨询您的ISP。
• 运行网络诊断以解决问题。在Windows 10中，右键单击任务栏上的WiFi图标并选择疑难解答^{(Troubleshoot problems)}。在 Mac 上，选择Menu > System Preferences > Assist Me > Diagnostics并使用网络诊断^{(Network Diagnostics)}工具。

更新或重新安装 WiFi 适配器驱动程序^{(Update or Reinstall WiFi Adapter Driver)}

如果您的WiFi适配器驱动程序已过期，您的设备将不断与^(WiFi)WiFi断开连接。您可以更新或重新安装驱动程序来解决问题。

1. 右键单击开始^(Start)>设备管理器^{(Device Manager)}，然后选择网络适配器^{(Network Adapters)}以展开类别。

1. 接下来，右键单击您的WiFi 适配器^{(WiFi adapter)}并选择更新驱动程序^{(Update Driver)}。

要重新安装驱动程序，请右键单击适配器并选择卸载驱动程序^{(Uninstall driver)}。重新启动计算机，Windows将下载并安装最新版本的驱动程序。或者，您可以在线下载最新的驱动程序并将其安装在您的计算机上。

检查电源管理设置^{(Check Power Management Settings)}

您计算机的电源管理^{(Power Management)}设置可能会禁用您的无线适配器并导致它暂时断开连接。您可以对设置进行小幅调整并解决问题。

1. 右键单击开始^{(Start )}>设备管理器^{(Device Manager)}并展开网络适配器^{(Network Adapters)}部分。
2. 双击^{(Double-click)}您的WiFi适配器的名称，选择电源管理^{(Power Management)}选项卡并取消选中允许计算机关闭此设备以节省电源^{(Allow the computer to turn off this device to save power)}框。重新启动计算机并检查WiFi是否再次工作。

检查 DHCP 设置^{(Check DHCP Settings)}

DHCP（动态主机配置协议^{(Dynamic Host Configuration Protocol)}）自动在网络上分配 IP 地址，以便您的设备可以通过网络连接和通信。如果DHCP出现问题，您的WiFi将无法正常工作。

1. 在 Windows 10 中，选择开始^{(Start )}>设置^{(Settings )}>网络和 Internet^{(Network & Internet)}，然后选择Wifi。

1. 选择您的连接，然后检查IP 设置下的^{(IP Settings)}IP 分配^{(IP assignment)}选项是否显示为Automatic (DHCP)^{(Automatic (DHCP))}。如果是，则启用DHCP，但如果没有，请选择编辑^(Edit)>自动 (DHCP)^{(Automatic (DHCP))}，然后检查您的WiFi是否更好。 
2. 在 Mac 上，选择菜单^(Menu)>系统偏好设置^{(System Preferences)}>网络^(Network)并确保您的网络旁边有一个绿点。

1. 选择Advanced > TCP/IP选项卡并检查Configure IPv4选项是否显示Using DHCP。如果没有，请选择下拉菜单，选择该选项并检查您的WiFi是否再次正常工作。

解决掉线或丢失的 WiFi 连接^{(Resolve Dropped or Lost WiFi Connections)}

如果您的WiFi在尝试本指南中的步骤后仍然断开连接，您可以将计算机^{(factory reset your computer)}或路由器恢复出厂设置，以将它们恢复为开箱即用的出厂设置。在恢复出厂设置期间，您将丢失所有设置和数据，因此请务必备份计算机上的所有数据。

重置路由器^{(reset your router)}后，请给它时间进行自我设置并再次检查您的WiFi连接^(WiFi)。如果一切都失败了，请联系您的ISP以获得更多指导帮助或在没有互联网提供商的情况下获取 WiFi^{(get WiFi without an internet provider)}。

有关WiFi问题的更多提示，请查看10 种增强 WiFi 信号较弱的方法^{(10 ways to boost a weak WiFi signal)}以及在您的互联网已连接但无法正常工作时的故障排除提示^{(troubleshooting tips if your internet is connected but not working)}。

WiFi Keeps Disconnecting All The Time? Here’s How To Fix It

A pаtchy WiFi connection thаt keeps dropping oυt of service over and over again can be a maјor inconνenience.

The culprit could be anything from an out-of-date router and slow internet speeds to an incorrect computer setting or a huge outage on your internet service provider’s end.

To help you figure out why your WiFi keeps disconnecting, we’ve put together an explainer with a list of causes and solutions to help you bring that speedy WiFi service back to life.

Why Does My WiFi Keep Disconnecting?

Whether you’re trying to send an important email or you want to do a conference call on your PC or mobile device, a dropped WiFi connection can be an impediment to your life. Some of the main reasons why your WiFi keeps disconnecting include:

• Being in Airplane mode
• Slow speeds owing to signal, slow DNS server or packet loss
• Outdated WiFi driver software
• A recent update created bugs that disrupt the WiFi connection
• Power management issues
• Poorly configured wireless adapter
• Router is out of date or damaged
• Router is damaged or placed far from your device
• Interference on the network
• Massive service outage
• Being in an area with limited or no internet connection
• WiFi driver isn’t compatible with your the current version of your operating system

What to Do When Your WiFi Keeps Disconnecting

While there are varying reasons why your WiFi connection keeps dropping, you can troubleshoot most of them yourself. Before we go into more complex solutions, try some of these quick checks to get your WiFi back up and running again in no time.

Quick Checks

• Check whether your WiFi switch is set to On.
• Ensure that you’re using the correct WiFi connection.
• Make sure everything on your router is plugged in the way it should be.
• Check the lights on your router to see if any seem unusual or other than green. You can use your router manual to know what each light means and how to resolve any problems.
• Move your device closer to the router especially where there’s lots of interference.  You can also get a WiFi range extender to boost your WiFi signal’s strength.
• Plug an Ethernet cable into your device and check if the connection is strong again. If it works, the issue is with the wireless signal.
• Check with your ISP whether there are any connection issues or service outages in your area.
• Remove any objects or electronics that could be interfering with your router.

• Change your router’s WiFi channel especially if your network tends to overlap with nearby networks.
• Restart your computer, mobile device or router to help reset the network settings and then try connecting to WiFi again.
• Check for any pending updates on your computer and install them.
• Remove and re-add the wireless network.
• Temporarily disable your security software (antivirus) as this could be conflicting with other software causing issues with your WiFi connection.
• Update your router’s firmware. If you’re not sure how to do this, check with your ISP.
• Run a network diagnostic to troubleshoot the problem. In Windows 10, right-click the WiFi icon on the taskbar and select Troubleshoot problems. On Mac, select Menu > System Preferences > Assist Me > Diagnostics and use the Network Diagnostics tool.

Update or Reinstall WiFi Adapter Driver

If your WiFi adapter driver is out of date, your device will keep disconnecting from WiFi. You can update or reinstall the driver to fix the problem.

1. Right-click Start > Device Manager and then select Network Adapters to expand the category.

1. Next, right-click your WiFi adapter and select Update Driver.

To reinstall the driver, right-click the adapter and select Uninstall driver. Restart your computer and Windows will download and install the latest version of the driver. Alternatively, you can download the latest driver online and install it on your computer.

Check Power Management Settings

Your computer’s Power Management settings may disable your wireless adapter and cause it to disconnect temporarily. You can make a small adjustment to your settings and resolve the problem.

1. Right-click Start > Device Manager and expand the Network Adapters section.
2. Double-click your WiFi adapter’s name, select the Power Management tab and uncheck the Allow the computer to turn off this device to save power box. Restart your computer and check if the WiFi works again.

Check DHCP Settings

DHCP (Dynamic Host Configuration Protocol) automatically distributes IP addresses across the network so that your devices can connect and communicate over the web. If there’s a problem with the DHCP, your WiFi won’t work properly.

1. In Windows 10, select Start > Settings > Network & Internet and then select Wifi.

1. Select your connection and then check whether the IP assignment option under IP Settings says Automatic (DHCP). If it does, then DHCP is enabled, but if it doesn’t, select Edit > Automatic (DHCP) and then check if your WiFi is any better. 
2. On a Mac, select Menu > System Preferences > Network and ensure your network has a green dot next to it.

1. Select Advanced > TCP/IP tab and check if the Configure IPv4 option is showing Using DHCP. If not, select the dropdown menu, choose the option and check whether your WiFi works again.

Resolve Dropped or Lost WiFi Connections

If your WiFi is still disconnecting even after trying the steps in this guide, you can factory reset your computer or your router to return them to out-of-the-box factory settings. You’ll lose all your settings and data during a factory reset so make sure you backup any data on your computer.

Once you reset your router, give it time to set itself up and check your WiFi connection again. If all else fails, contact your ISP for more guided assistance or get WiFi without an internet provider.

For more tips on WiFi issues, check out 10 ways to boost a weak WiFi signal and troubleshooting tips if your internet is connected but not working.

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