您的Windows 11计算机是否无法连接到特定的Wi-Fi网络？还是问题扩展到所有网络？我们将解释为什么会发生这种情况以及您必须做什么才能让Windows 11再次连接到Wi-Fi。

导致Windows 11无法连接到Wi-Fi的原因有很多（琐碎和复杂） 。例如，可能是由于密码不正确、路由器端问题或网络配置损坏。完成本故障排除指南中的解决方案，在Windows 11无法连接到Wi-Fi时对其进行修复。

如果您尚未升级到 Microsoft 的最新操作系统，请查看我们的Windows 10 Wi-Fi 故障排除指南^{(Windows 10 Wi-Fi troubleshooting guide)}。

1. 检查您的 Wi-Fi 密码

如果您是第一次尝试连接到 Wi-Fi 网络，请确保您输入的密码准确无误。输入错误的单个字符或混淆大小写会阻止您的计算机加入网络。

2.手动连接网络

尽管默认情况下Windows 11会自动连接到以前保存的无线网络，但您不能总是指望这种情况发生。如果您的 PC 位于附近，但仍未连接到网络，请尝试手动连接。

1. 打开快速设置^{(Quick Settings)}面板——选择任务栏右下角的 电池^(Battery)、音量或网络图标——然后展开 Wi-Fi 类别。^(Network)
2. 选择要连接 的Wi-Fi网络。^(Wi-Fi)
3. 选择连接^(Connect)。如果自上次加入以来密码已更改，系统将要求您更新密码。

在此期间，如果网络尚未处于活动状态，请选中网络的自动 连接框。^(Connect)

3. 开启/关闭飞行模式

打开和关闭飞行模式^{(Airplane Mode)}会重新启动 PC 的Wi-Fi适配器并解决小故障，从而阻止 Windows 11 连接到网络。

只需再次打开快速设置^{(Quick Settings)}窗格并选择飞行^(Airplane)模式磁贴。然后，最多等待 10 秒，然后再次选择它。

4.靠近路由器

^(Weak)即使您的计算机出现在Windows 11的Wi-Fi网络列表中，较弱的信号强度也会阻止您的计算机加入无线网络。靠近^(Move)路由器或接入点，直到信号指示灯至少充满三分之二，然后再重新连接。

如果问题发生在家庭网络上，请了解如何提高 Wi-Fi 信号强度^{(boost the Wi-Fi signal strength)}以获得更好的连接性。

5.重启你的电脑

重新启动计算机会清除过时临时数据的RAM（随机存取存储器），从而修复Windows 11中随机出现的无线连接问题。保存您的工作，然后打开“开始^(Start)”菜单并选择Power > Restart” 。

6.运行网络疑难解答

Windows 11 带有几个内置的网络疑难解答程序，能够检测和修复持续存在的 Internet 连接问题。要运行它们：

1. 右键单击^{(Right-click)}开始^(Start)按钮并选择设置^(Settings)。

1. ^(Scroll)向下滚动系统^(System)屏幕并选择疑难解答^{(Troubleshoot)}。

1. 选择其他疑难解答。

1. 选择Internet 连接^{(Internet Connections)}和网络适配器^{(Network Adapter)}（在列表下方）疑难解答 旁边的运行。^(Run)

了解如果Internet 连接^{(Connections)}或网络适配器^{(Network Adapter)}疑难解答程序抛出“Wi-Fi 没有有效的 IP 配置”错误^{(“Wi-Fi doesn’t have a valid IP configuration” error)}该怎么办。

7.忘记^(Forget)并重新连接^(Reconnect)到网络

另一种解决特定于网络的 Wi-Fi^(Wi-Fi)连接问题的方法（假设您之前已加入该网络）是忘记并重新连接。要做到这一点：

1. 打开设置^(Settings)并选择网络^(Network)和互联网 > Wi-Fi以访问您计算机的Wi-Fi设置屏幕。

1. 选择管理已知网络。

1. ^{(Select Forget)}选择网络名称旁边的 忘记。

1. 重启你的电脑。
2. 转到Quick Settings > Wi-Fi并重新加入网络连接。

8. 检查 MAC 地址过滤

Wi-Fi 网络可以根据称为MAC（媒体访问控制）地址^{(MAC (media access control) addresses)}的唯一标识符禁止设备加入。如果您有权访问路由器设置^{(permissions to access the router settings)}，请确认您的 PC 未被禁止连接。

1. 打开设置^(Settings)并转到网络^(Network)和互联网 > Wi-Fi > Hardware属性。请注意物理^(Physical)地址 ( MAC )旁边的字母数字代码。

1. 打开网络浏览器并访问路由器的控制面板。

1. 在Security^(Security)下寻找MAC Filter选项。如果过滤^(Filtering)模式设置为允许，请将您的 PC 的MAC地址添加到例外列表中。如果设置为Deny，请从列表中删除MAC地址。

9.重启^(Restart)、更新^(Update)或重置您的路由器

如果问题仍然存在但仅限于特定网络，请尝试重新启动路由器、调制解调器或接入点。如果这没有帮助，请访问路由器设置并安装任何待处理的固件更新。如果没有新的更新，请重置您的无线路由器^{(reset your wireless router)}或联系ISP（互联网服务提供商）。

10. 更新、回滚^{(Roll Back)}或重新安装Wi-Fi 适配器驱动程序^{(Wi-Fi Adapter Drivers)}

如果您的 Windows 11 电脑拒绝连接到多个网络，这可能是因为网络适配器驱动程序过时、错误或损坏。更新^(Update)、回滚或重新安装这些驱动程序。

更新网络适配器驱动程序

较新^(Newer)的网络适配器驱动程序包含解决间歇性 Wi-Fi 连接问题的错误修复。要安装它们：

1. 右键单击^{(Right-click)}开始^(Start)按钮并选择设备管理器^{(Device Manager)}。
2. 展开网络适配器。
3. 请注意网络适配器的名称，例如Intel (R) Wi-Fi 6 AX201 16oMHz。

1. 访问网络适配器的制造商网站（例如Intel ）并下载最新的驱动程序。如果您的计算机无法连接到其他 Wi-Fi 网络或不支持以太网^(Ethernet)，请在另一台 PC 或Mac上下载驱动程序设置并通过USB进行复制。

1. 运行安装文件以更新驱动程序。或者，在设备管理^{(Device Manager)}器中再次右键单击网络适配器，选择更新^(Update)驱动程序> Browse我的计算机以查找驱动程序，然后选择您下载的驱动程序文件。

回滚网络适配器驱动程序

如果在安装较新的网络适配器驱动程序后出现问题，请尝试将该适配器驱动程序回滚到其先前版本。要做到这一点：

1. 右键单击^{(Right-click)}开始^(Start)按钮并选择设备管理器^{(Device Manager)}。
2. 展开网络适配器。
3. 右键单击^{(Right-click)}无线适配器并选择属性。

1. 切换到驱动程序^(Driver)选项卡并选择回滚驱动程序^{(Roll Back Driver)}。

1. 标记^(Mark)以前^(Previous)版本的驱动程序表现更好/看起来更可靠旁边的单选按钮，然后选择是^(Yes)。

1. 重启你的电脑。

重新安装网络适配器驱动程序

重新安装网络适配器驱动程序以排除损坏问题。要做到这一点：

1. 右键单击^{(Right-click)}开始^(Start)按钮并选择设备管理器^{(Device Manager)}。
2. 展开网络适配器。
3. 右键单击^{(Right-click)}网络适配器并选择卸载^(Uninstall)设备。

1. 选中尝试^(Attempt)删除此设备的驱动程序旁边的框，然后再次选择卸载^(Uninstall)。

1. 重新启动计算机，Windows应在启动时自动重新安装网络驱动程序。要确认，请重新访问设备管理器^{(Device Manager)}，右键单击网络^(Network)适配器，然后选择扫描^(Scan)硬件更改。

11.将Windows更新到最新^(Latest)版本

将 Windows 11 更新到其最新版本提供了另一种解决Wi-Fi问题的方法。如果您可以将 PC 连接到不同的Wi-Fi网络或能够使用以太网^(Ethernet)电缆：

1. 打开“设置”^(Settings)应用，然后在边栏上选择“ Windows 更新^{(Windows Update)}”。
2. 选择检查更新。
3. 选择下载并安装。

如果没有，请检查您的 Windows 版本^{(check your Windows version)}并通过另一台 PC 上的Microsoft 更新目录^{(Microsoft Update Catalog)}下载最新更新。然后，通过USB^(USB)复制更新文件并离线执行更新^{(perform the update offline)}。

12. 重置 TCP/IP 堆栈

Windows中损坏的TCP/IP (Transmission Control Protocol/Internet Protocol) stack通常会导致许多连接问题。因此^(Hence)，以下修复涉及将其重置为默认值。

1. 打开开始^(Start)菜单，键入 cmd，然后选择以管理员身份 运行。^(Run)

1. 键入以下命令并按 Enter：

ipconfig /flushdns

1. 依次执行以下两条命令：

netsh winsock 重置目录

netsh int ip 重置

1. 退出命令提示符。
2. 重启你的电脑。

13. 重置Windows 11 网络^(Network)设置

如果上述修复都没有帮助，那么是时候在 Windows 11 中执行总网络设置重置了^{(total network settings reset in Windows 11)}。在此过程中，您将丢失所有已保存的 Wi-Fi^(Wi-Fi)网络和密码。

1. 打开设置^(Settings)应用程序并选择网络^(Network)和互联网。
2. 选择高级网络设置。

1. 选择网络重置。

1. 选择立即重置。

网络设置重置后，尝试连接到可用的Wi-Fi网络。如果网络配置损坏或冲突是问题的根源，那么您不应再遇到Wi-Fi问题。

连接到Wi-Fi但不是互联网^(Internet)？

连接到 Wi-Fi 网络并不一定意味着您的 Windows 11 电脑可以访问互联网。如果您继续在任务栏的右上角看到地球^(Globe)图标，请了解如何修复连接到 Wi-Fi 但无法连接到互联网^{(connects to Wi-Fi but can’t connect to the internet)}的计算机。

13 Ways to Fix Windows 11 Not Connecting to Wi-Fi

Does your Windоws 11 computer have trouble connecting to a particular Wi-Fi netwоrk? Оr does the problеm extend to all networks? We’ll explain why that happens and what you must do to get Windows 11 сonnecting to Wi-Fi again.

There are many reasons—trivial and complex—that result in Windows 11 not connecting to Wi-Fi. For example, it could be due to an incorrect password, a router-side issue, or a corrupt network configuration. Work through the solutions in this troubleshooting guide to fix Windows 11 when it fails to connect to Wi-Fi.

If you’ve yet to make the upgrade to Microsoft’s latest operating system, check out our Windows 10 Wi-Fi troubleshooting guide instead.

1. Check Your Wi-Fi Password

If you’re attempting to connect to a Wi-Fi network for the first time, make sure that the password you’re typing is accurate. Getting a single character wrong or mixing up upper and lower case will prevent your computer from joining the network.

2. Manually Connect to the Network

Although Windows 11 auto-connects to previously-saved wireless networks by default, you can’t always count on that happening. If your PC isn’t connecting to a network despite being in its vicinity, try connecting manually.

1. Open the Quick Settings pane—select the Battery, Volume, or Network icon on the lower right corner of the taskbar—and expand the Wi-Fi category.
2. Select the Wi-Fi network you want to connect to.
3. Select Connect. You’ll be asked to update the password if it has changed since the last time you joined.

While at it, check the Connect automatically box for the network if it isn’t already active.

3. Toggle Airplane Mode On/Off

Toggling Airplane Mode on and off reboots your PC’s Wi-Fi adapter and resolves minor glitches, preventing Windows 11 from connecting to a network.

Just open the Quick Settings pane again and select the Airplane mode tile. Then, wait up to 10 seconds, and select it again.

4. Move Closer to the Router

Weak signal strength can stop your computer from joining a wireless network even if it appears on Windows 11’s Wi-Fi network list. Move closer to the router or access point until the signal indicator is at least two-thirds full before connecting to it again.

If the problem occurs on a home network, learn how to boost the Wi-Fi signal strength for better connectivity.

5. Restart Your Computer

Restarting your computer clears the RAM (random access memory) of obsolete temporary data and consequently fixes wireless connectivity issues that randomly crop up in Windows 11. Save your work, and then open the Start menu and select Power > Restart.

6. Run the Network Troubleshooter

Windows 11 comes with a couple of built-in network troubleshooters capable of detecting and fixing persistent internet connectivity problems. To run them:

1. Right-click the Start button and select Settings.

1. Scroll down the System screen and select Troubleshoot.

1. Select Other troubleshooters.

1. Select Run next to the Internet Connections and Network Adapter (further down the list) troubleshooters.

Learn what to do if the Internet Connections or the Network Adapter troubleshooter throws a “Wi-Fi doesn’t have a valid IP configuration” error.

7. Forget and Reconnect to the Network

Another way to fix Wi-Fi connectivity issues specific to a network, assuming you’ve previously joined it, is to forget and reconnect. To do that:

1. Open Settings and select Network & internet > Wi-Fi to visit your computer’s Wi-Fi settings screen.

1. Select Manage known networks.

1. Select Forget next to the network name.

1. Restart your computer.
2. Go to Quick Settings > Wi-Fi and rejoin the network connection.

8. Check for MAC Address Filtering

Wi-Fi networks can forbid devices from joining based on unique identifiers called MAC (media access control) addresses. Confirm that your PC is not barred from connecting if you have permissions to access the router settings.

1. Open Settings and go to Network & internet > Wi-Fi > Hardware properties. Note the alphanumeric code next to Physical address (MAC).

1. Open a web browser and visit your router’s control panel.

1. Look for a MAC Filter option under Security. If Filtering mode is set to Allow, add your PC’s MAC address to the exceptions list. If it’s set to Deny, remove the MAC address from the list.

9. Restart, Update, or Reset Your Router

If the problem persists but with a specific network only, try restarting the router, modem, or access point. If that does not help, visit the router settings and install any pending firmware updates. If there are no new updates, reset your wireless router or contact the ISP (internet service provider).

10. Update, Roll Back, or Reinstall the Wi-Fi Adapter Drivers

If your Windows 11 PC refuses to connect to multiple networks, it could be because of outdated, buggy, or corrupt network adapter drivers. Update, rollback, or reinstall those drivers.

Update Network Adapter Drivers

Newer network adapter drivers contain bug fixes that resolve intermittent Wi-Fi connectivity issues. To install them:

1. Right-click the Start button and select Device Manager.
2. Expand Network adapters.
3. Note the network adapter’s name—e.g., Intel(R) Wi-Fi 6 AX201 16oMHz.

1. Visit the network adapter’s manufacturer website—e.g., Intel—and download the latest drivers. If your computer can’t connect to other Wi-Fi networks or doesn’t support Ethernet, download the driver setup on another PC or Mac and copy it via USB.

1. Run the setup file to update the drivers. Or, right-click the network adapter again in the Device Manager, choose Update driver > Browse my computer for drivers, and select the driver file you downloaded.

Roll Back Network Adapter Drivers

If the problem occurred after installing a newer network adapter driver, try rolling that adapter driver back to its previous version. To do that:

1. Right-click the Start button and select Device Manager.
2. Expand Network adapters.
3. Right-click the wireless adapter and select Properties.

1. Switch to the Driver tab and select Roll Back Driver.

1. Mark the radio button next to Previous version of the driver performed better/seemed more reliable and select Yes.

1. Restart your computer.

Reinstall Network Adapter Drivers

Reinstall your network adapter drivers to rule out corruption issues. To do that:

1. Right-click the Start button and select Device Manager.
2. Expand Network adapters.
3. Right-click the network adapter and select Uninstall device.

1. Check the box next to Attempt to remove the driver for this device and select Uninstall again.

1. Restart your computer, and Windows should automatically reinstall the network drivers at startup. To confirm, revisit the Device Manager, right-click Network adapters, and select Scan for hardware changes.

11. Update Windows to Its Latest Version

Updating Windows 11 to its latest version offers another way to fix Wi-Fi issues. If you can connect your PC to a different Wi-Fi network or is capable of using an Ethernet cable:

1. Open the Settings app and select Windows Update on the sidebar.
2. Select Check for updates.
3. Select Download and Install.

If not, check your Windows version and download the latest update via the Microsoft Update Catalog on another PC. Then, copy the update file via USB and perform the update offline.

12. Reset the TCP/IP Stack

A broken TCP/IP (Transmission Control Protocol/Internet Protocol) stack in Windows often results in numerous connectivity problems. Hence, the following fix involves resetting it to its defaults.

1. Open the Start menu, type cmd, and select Run as administrator.

1. Type the following command and press Enter:

ipconfig /flushdns

1. Execute the two commands below one after the other:

netsh winsock reset catalog

netsh int ip reset

1. Exit the Command Prompt.
2. Restart your computer.

13. Reset the Windows 11 Network Settings

If none of the fixes above help, it’s time to perform a total network settings reset in Windows 11. You’ll lose all saved Wi-Fi networks and passwords during the process.

1. Open the Settings app and select Network and internet.
2. Select Advanced network settings.

1. Select Network reset.

1. Select Reset now.

After the network settings reset, try connecting to an available Wi-Fi network. If a corrupt or conflicting network configuration was the source of the problem, you shouldn’t encounter Wi-Fi problems anymore.

Connecting to Wi-Fi But Not Internet?

Connecting to a Wi-Fi network doesn’t necessarily mean that your Windows 11 PC will have internet access. If you continue to see a Globe icon on the right corner of the taskbar, learn what to do to fix a computer that connects to Wi-Fi but can’t connect to the internet.

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