如果您最近安装或更新了Windows 10，您可能会遇到一些WiFi问题。我们是来帮忙的！无线(Wireless)网络问题特别烦人，因为有很多事情可以导致它们。也许您缺少驱动程序(missing a driver)或计算机的电源选项设置不正确。你(Did)检查过无线开关（如果你有的话）吗？很多事情都可能出错。
在本文中，我们将通过探索最常见的问题来对Windows 10 WiFi进行故障排除。(WiFi)让我们开始吧。
有限的连接
许多Windows 10用户收到有限的连接消息，很难找出导致它的原因。它可能由过时的驱动程序、有故障的以太网(faulty Ethernet)电缆、您的网络适配器，甚至您使用的防病毒软件触发。您唯一能做的就是一步一步地对WiFi(WiFi one)进行故障排除，并希望获得最好的结果。
我们将尝试最常见的解决方案，但如果这些方法不起作用，请务必尝试本文中提到的其他修复。
运行网络疑难解答
您应该尝试的第一件事是内置的Windows 10网络疑难解答。在很多情况下，WiFi问题可以自动解决。
访问此资源的最简单方法是在搜索框中键入疑难解答并选择(troubleshoot)查找并修复网络问题(Find and fix network problems)选项。
这将打开Internet 连接( Internet Connections)面板。
让Windows诊断网络问题并应用任何建议的修复程序。如果这没有帮助，您还应该对网络适配器进行故障排除。在搜索框中键入故障排除网络适配器(troubleshoot network adapter)，然后按照相同的步骤操作。
重置 TCP
如果故障排除程序发现表明WiFi没有有效 IP 配置的错误，您应该重置TCP/IP。这是此问题的最常见解决方案，尽管过时的驱动程序也可能导致此问题。
要重置 TCP，请在Windows搜索框中键入命令提示符。(command prompt)在启动提示之前，请确保右键单击并选择以管理员身份运行(Run as administrator)选项，否则某些命令可能不起作用。
接下来，通过在每个命令后按Enter键分别键入以下命令：
netsh winsock 重置(netsh winsock reset)
ipconfig /release
ipconfig /renew
netsh int ip 重置(netsh int ip reset)
ipconfig /flushdns
重新启动计算机并检查您的无线连接现在是否正常。如果没有，请继续使用以下提示对 wifi 进行故障排除。
检查您的防病毒软件
拥有防病毒软件(antivirus software)很重要，但它有时会导致冲突，从而导致 Internet 连接消息受限。请注意，Windows 10附带的防病毒软件Windows Defender不会对您的无线连接造成任何问题。
大多数用户报告说第三方防病毒软件可以阻止WiFi。因此，如果您一直在努力解决这个问题，请尝试禁用您的防病毒软件。如果BitDefender、Avast、AVG或类似的杀毒软件确实是罪魁祸首，请将其卸载。
缺少 WiFi 图标
在某些情况下，无线被禁用。您找不到WiFi图标，如果您深入了解网络设置，您将找不到无线部分。
很多用户报告了这个问题，尤其是在干净的Windows 10安装之后。这通常是由于缺少或过时的WiFi驱动程序造成的。如果您购买了WiFi模块，也可能是罪魁祸首，因此请确保它已正确连接。
也就是说，您可以尝试多种解决方案。
检查更新
开始(Start)查看您的驱动程序，尤其是如果您刚刚安装了Windows 10。许多用户安装操作系统时没有将他们的机器连接到Internet。因此，Windows在安装过程中无法自动安装任何驱动程序，因此会丢失一些驱动程序。
1. 导航到设置(Settings)面板并选择更新和安全(Updates & Security)。
2. 接下来，您需要通过单击查看可选更新来检查驱动程序更新(View optional updates)。
3. 单击驱动程序更新(Driver updates)以查看是否有要下载的内容。
在您的情况下，您应该有其他驱动程序而不是此图像中看到的驱动程序。希望(Hopefully)其中之一是WiFi驱动程序。确保您已通过网线或智能手机连接到Internet并下载驱动程序。
重新安装 WiFi 驱动程序
在某些情况下，WiFi驱动程序已损坏，更新它不会有任何作用。您需要做的是重新安装它。为此，您需要先卸载驱动程序，然后使用以前的解决方案检查更新或从制造商的网站下载。
要删除现有驱动程序，请转到设备管理器并在(Device Manager)网络适配器(Network adapters)下查找您的WiFi驱动程序。
选择您的无线驱动程序，双击以启动“属性(Properties)”面板，然后导航到“驱动程序(Driver)” 。在那里你会找到司机详细信息(Driver Details)按钮，它会告诉你你需要知道的关于司机的一切。
如果您想从WiFi卡制造商的网站下载并安装驱动程序，则需要此信息。
现在，回到设备管理器中的驱动程序，右键单击它，然后选择卸载设备(Uninstall device)选项。这将从您的计算机中删除驱动程序，以便您可以正确安装它。
删除驱动程序后，您可以返回我们上面讨论的检查更新面板或制造商的网站。(Check for Updates)无论哪种方式，安装驱动程序并重新启动计算机。
睡眠模式后 WiFi 断开连接
在您的computer enters Sleep/Hibernate模式之前，您的无线连接工作正常吗？您可能正在处理一个烦人的省电选项，该选项使您的计算机在唤醒后无法返回您的WiFi连接。(WiFi)要解决此问题，请在Windows搜索栏中键入Power Plan并选择( Power Plan )Edit Power Plan。这将打开您计算机的当前电源计划设置。然后单击更改高级电源设置(Change advanced power settings )选项。
滚动到无线适配器设置(Wireless Adapter Settings)，展开它，然后将省电模式(Power Saving Mode )更改为最高性能(Maximum Performance)。
其他 WiFi 故障排除提示
如果之前的提示都没有修复您的 WiFi 连接，此时您可以尝试其他一些方法。
配置您的网络适配器
您(Are)确定您的网络适配器配置正确吗？转到网络(Network)和共享中心(Sharing Center)，然后单击更改适配器设置(Change adapter settings)以打开网络连接(Network Connections)页面。右键单击您的WiFi适配器并选择Properties。
您需要找到Internet Protocol Version 4 (TCP/IPv4)。选择它并单击“属性(Properties )”按钮。
是否选择了自动获取 IP 地址(Obtain an IP address automatically )和自动获取 DNS 服务器地址(Obtain DNS server address automatically)选项？如果不是，请启用它们。
重置您的路由器
路由器(Router)配置有时会干扰或与您计算机的WiFi设置发生冲突。此问题可能会随着时间的推移或您使用路由器的设置而出现。无论哪种方式，您都应该尝试将其重置为默认设置。
有几种重置路由器的方法。通常，您可以按下微小的隐藏重置按钮，也可以转到路由器的配置页面并从那里进行操作。
有关如何重置路由器的(how to reset a router)更多详细信息，请查看我们的专用文章。
检查 WiFi 开关
一些笔记本电脑仍然带有启用或禁用WiFi的开关。如果您的情况是这样，请确保检查它是否设置为ON。
设备干扰
某些(Certain)设备可能会干扰WiFi信号。检查微波炉、电话、扬声器和其他电子设备的频率规格。如果它们与您的路由器使用的频率相同，您应该尝试关闭它们。
如果您的问题是由家用设备引起的，解决方案是将路由器远离它。
不得已 – 更新或重置 BIOS
如果您尝试了上述每个故障排除 wifi 步骤，您应该尝试此解决方案。
更新BIOS曾经是大多数人不惜一切代价避免的事情，但现在有了现代主板，这很容易做到。只要(Just)确保您阅读主板随附的说明并备份数据即可。
或者，您也可以尝试将 BIOS 重置为其默认设置( resetting BIOS to its default settings)。
正如文章开头所提到的，很多事情都会让你的WiFi失控。希望(Hopefully)我们的解决方案之一对您有用。如果没有，那么您可能有硬件问题，您应该检查无线模块。在评论中让我们知道您是如何修复WiFi的！
Ultimate Windows 10 WiFi Troubleshooting Guide
If уou reсently installed or updated Windоws 10, you might experience some WiFi issues. Wе’re here tо help! Wireless networkіng problems are particularly annoуing because there are so many things that can cause them. Maybe you’re missing a driver or your computer’s power options aren’t properly set. Did you check the wireless switch (if you have one)? So many things can go wrong.
In this article, we’re going to troubleshoot Windows 10 WiFi by exploring the most common issues. Let’s get started.
Limited Connectivity
Many Windows 10 users get a limited connectivity message and it’s challenging to figure out what’s causing it. It can be triggered by outdated drivers, a faulty Ethernet cable, your network adapter, or even the antivirus software you use. The only thing you can do is troubleshoot WiFi one step at a time and hope for the best.
We’re going to try the most common solutions, but make sure to try other fixes mentioned in this article if those don’t work.
Run the Networking Troubleshooter
The first thing you should try is the built-in Windows 10 networking troubleshooter. In a lot of cases, WiFi problems can be solved automatically.
The easiest way to access this resource is to type troubleshoot in the search box and select the Find and fix network problems option.
This opens the Internet Connections panel.
Let Windows diagnose the networking issues and apply any suggested fixes. If this doesn’t help, you should also troubleshoot the network adapter. Type troubleshoot network adapter in the search box and follow the same steps.
Reset TCP
If the troubleshooter found an error that says WiFi doesn’t have a valid IP configuration, you should reset the TCP/IP. This is the most common solution to this problem, although outdated drivers can also cause it.
To reset the TCP, type command prompt in the Windows search box. Before you launch the prompt, make sure to right-click and select the Run as administrator option otherwise some commands might not work.
Next, type the following commands separately by pressing the Enter key after each one:
netsh winsock reset
ipconfig /release
ipconfig /renew
netsh int ip reset
ipconfig /flushdns
Restart your computer and check if your wireless connection works now. If it doesn’t, continue to troubleshoot wifi using our tips below.
Check Your Antivirus
Having antivirus software is important, but it can sometimes cause a conflict that leads to a limited internet connection message. Take note that Windows Defender, the antivirus that comes with Windows 10, shouldn’t cause any problems with your wireless connection.
Most users report that third-party antivirus software can block WiFi. So if you’ve been struggling with trying to figure this out, try disabling your antivirus. If BitDefender, Avast, AVG, or a similar antivirus is indeed the culprit, uninstall it.
Missing WiFi Icon
In some cases, wireless is disabled. You can’t find the WiFi icon and if you dig deeper into your network settings you won’t find a wireless section.
A lot of users report this problem, especially after a clean Windows 10 install. This is usually due to missing or outdated WiFi drivers. The WiFi module might also be the culprit if you purchased one so make sure it’s properly connected.
That said, there are several solutions you can try.
Check for Updates
Start looking at your drivers, especially if you just installed Windows 10. A lot of users install the operating system without connecting their machine to the Internet. As a result, Windows can’t install any drivers automatically during the installation process, so some of them will be missing.
1. Navigate to the Settings panel and select Updates & Security.
2. Next, you need to check for driver updates by clicking on View optional updates.
3. Click on Driver updates to see if you have anything to download.
In your case, you should have other drivers than the ones seen in this image. Hopefully, one of them is the WiFi driver. Make sure you’re connected to the Internet through a network cable or your smartphone’s connection and download the drivers.
Reinstall the WiFi Driver
In some cases, the WiFi driver is corrupted, and updating it won’t do anything. What you need to do is reinstall it. To do that, you need first uninstall the driver and then either check for updates using the previous solution or download it from the manufacturer’s website.
To remove the existing driver, head over to the Device Manager and look for your WiFi driver under Network adapters.
Select your wireless driver, double-click to launch the Properties panel, and navigate to Driver. There you’ll find the Driver Details button, which will tell you everything you need to know about the driver.
You need this information if you want to download and install the driver from the WiFi card manufacturer’s website.
Now, go back to the driver inside the device manager, right-click on it, and select the Uninstall device option. This will remove the driver from your computer so that you can properly install it.
Once the driver has been removed, you can either go back to the Check for Updates panel we talked about above or to the manufacturer’s website. Either way, install the driver and restart your computer.
WiFi Disconnected After Sleep Mode
Your wireless connection works just fine until your computer enters Sleep/Hibernate mode? Chances are you’re dealing with an annoying power-saving option that keeps your computer from returning your WiFi connection after it wakes up. To fix this, type Power Plan in the Windows search bar and select Edit Power Plan. This opens your computer’s current power plan settings. Then click on the Change advanced power settings option.
Scroll to Wireless Adapter Settings, expand it, and change the Power Saving Mode to Maximum Performance.
Other WiFi Troubleshooting Tips
There are a few other things you can try at this point if none of the previous tips fixed your WiFi connection.
Configure Your Network Adapter
Are you sure your network adapter is properly configured? Go to Network and Sharing Center and click on Change adapter settings to open the Network Connections page. Right-click on your WiFi adapter and select Properties.
You need to find Internet Protocol Version 4 (TCP/IPv4). Select it and click on the Properties button.
Are the Obtain an IP address automatically and Obtain DNS server address automatically options selected? If they aren’t, enable them.
Reset Your Router
Router configurations can sometimes interfere or conflict with your computer’s WiFi settings. This issue can pop over time or if you played with the router’s settings. Either way, you should try resetting it to its default settings.
There are a few ways of resetting your router. Generally, you can either press the tiny, hidden reset button or go to the router’s configuration page and do it from there.
For more details on how to reset a router, check out our dedicated article.
Check the WiFi Switch
Some laptops still come with a switch that enables or disables WiFi. If that’s the case with yours, make sure to check that it’s set to ON.
Device Interference
Certain devices can interfere with the WiFi signal. Check the frequency specifications of your microwave oven, phone, speakers, and other electronic devices. If they match the same frequency used by your router, you should try turning them off.
If your problem is caused by a household device, the solution is to move the router away from it.
Last Resort – Update or Reset BIOS
If you tried every single troubleshoot wifi step above, you should try this solution.
Updating BIOS used to be something most people avoided at all costs, but nowadays with modern motherboards, it’s quite easy to do. Just make sure you read the instructions that came with your motherboard and backup your data.
Alternatively, you can also try resetting BIOS to its default settings.
As mentioned at the start of the article, a lot of things can make your WiFi go haywire. Hopefully, one of our solutions has worked for you. If not, then you probably have a hardware problem and you should inspect the wireless module. Let us know in the comments how you fixed your WiFi!
