以太网没有有效的 IP 配置错误(Ethernet doesn’t have a valid IP configuration error)是因为DHCP或动态主机配置协议(Dynamic Host Configuration Protocol)无法从您的NIC（网络接口卡(Network Interface Card)）获取有效的IP 地址。(IP Address)网络接口卡(Network Interface Card)通常是一个硬件组件，您的 PC 可以通过它连接到网络。如果没有NIC，您的计算机将无法建立稳定的网络连接，并且通常通过以太网(Ethernet)电缆与您的调制解调器或路由器配对。(Modem)动态IP(Dynamic IP)默认情况下启用配置，因此用户无需手动输入任何设置即可连接到具有DHCP服务器的网络。但是由于您的以太网(Ethernet)没有，您将无法访问互联网，并且您可能会收到诸如Limited connected(Limited connectivity )或No internet access之类的错误。阅读以下内容以了解如何修复Windows PC(Windows PCs)中的以太网没有有效 IP 配置错误(Valid IP Configuration Error)。
如何修复以太网没有有效的 IP 配置错误(How to Fix Ethernet Doesn’t Have a Valid IP Configuration Error)
此错误可能由多种原因引起。他们之中有一些是：
- 网络适配器驱动程序故障
- 网络配置不正确
- 有故障或故障的路由器
在本节中，我们编制了一系列方法，可帮助您修复上述错误。实施它们以获得最佳结果。
方法一：重启路由器(Method 1: Restart Router)
重新启动路由器将重新启动网络连接。请按照以下步骤执行此操作：
1. 找到路由器背面的ON/OFF 按钮。
2. 按一下按钮(button)关闭路由器。
3. 现在，断开电源线(disconnect the power cable )并等待(wait)电容器完全耗尽电力。
4.重新连接(Reconnect)电缆并将其打开。
方法二：重置路由器(Method 2: Reset Router)
重置路由器将使路由器恢复出厂设置。所有设置和设置，如转发端口、黑名单连接、凭据等，都将被删除。
注意：(Note: )在重置路由器之前记下您的ISP凭据。
1. 按住RESET/RST 按钮约 10 秒钟。它通常是默认内置的，以避免意外按下。
注意：(Note: )您必须使用大头针、螺丝刀(pin, screwdriver, )或牙签(toothpick )等定位设备来按下 RESET 按钮。
2. 等待一段时间，直到重新建立网络连接。(network connection)
方法 3：重启你的电脑(Method 3: Restart Your PC)
在尝试其他方法之前，建议您经常重启设备，简单的重启就能解决小故障。
1. 导航到 开始菜单(Start menu)。
2. 现在，单击Power icon > 重新启动(Restart)，如图所示。
另请阅读：(Also Read:) 为什么我的 Windows 10 电脑这么慢？(Why is My Windows 10 Computer So Slow?)
方法 4：运行网络适配器疑难解答(Method 4: Run Network Adapter Troubleshooter)
运行网络适配器疑难解答(Network Adapter Troubleshooter)将解决以太网(Ethernet)连接中的任何故障，并可能修复以太网(Ethernet)没有有效的 IP 配置错误。
1.在Windows 搜索栏中键入(Windows Search Bar)故障排除(troubleshoot)，然后按 Enter(Enter)。
2. 现在，单击附加疑难解答(Additional troubleshooters)，如下图所示。
3. 接下来，选择“查找并修复其他问题(Find and fix other problems)”部分下显示的网络适配器。(Network Adapter )
4. 单击运行疑难解答(Run the troubleshooter)按钮。
5. 现在，网络适配器(Network Adapter)疑难解答将打开。等待(Wait)该过程完成。
6.在选择要诊断的网络适配器(Select the network adapter to diagnose )屏幕上选择以太网(Ethernet )，然后单击下一步(Next)。
7. 如果发现任何问题，请单击应用此修复(Apply this fix )并按照连续提示中给出的说明进行操作。
8. 故障排除完成后，将出现故障排除已完成(Troubleshooting has completed)屏幕。单击关闭(Close)并重新启动 Windows PC。
方法五：关闭快速启动(Method 5: Turn Off Fast Startup)
建议关闭快速启动选项来修复以太网(Ethernet)没有有效IP配置错误，如下：
1.通过Windows 搜索栏搜索并(Windows Search Bar)打开(Open) 控制面板(Control Panel)，如下图所示。
2. 设置View by > Large icons，然后单击电源选项。(Power Options.)
3.在这里，单击选择电源按钮的功能(Choose what the power button does )选项，如下所示。
4. 现在，单击定义电源按钮下当前不可用的更改设置，(Change settings that are currently unavailable )并如图所示打开密码保护(Define power buttons and turn on password protection)。
5. 取消选中标记为打开快速启动（推荐）(Turn on fast startup (recommended) )的框，如下所示。
6. 最后，单击保存更改(Save changes )并重新启动您的 PC。
另请阅读：(Also Read:) 为什么我的互联网每隔几分钟就会断开连接？(Why My Internet Keeps Disconnecting Every Few Minutes?)
方法 6：重启 DNS & DHCP 客户端(Method 6: Restart DNS & DHCP Client)
域名服务器(Domain Name Servers)将域名转换为 IP 地址以分配给您的计算机。同样，无错误的 Internet 连接也需要DHCP客户端服务。(DHCP)如果您遇到与网络相关的问题，您可以重新启动DHCP和DNS客户端进行故障排除。这样做的方法如下：
1. 同时按Windows + R键启动运行(Run)对话框。
2.输入services.msc，然后按 Enter(Enter)启动服务(Services)窗口。
3. 右键单击 Network Store Interface Service选项卡并选择Restart，如图所示。
4.在服务(Services)窗口中导航到DNS 客户端。(DNS client)右键单击它，然后选择刷新(Refresh)选项，如下图所示。
5. 对刷新DHCP 客户端(DHCP client)也重复同样的操作。
重新启动过程完成后，检查问题是否已解决。如果没有，请尝试下一个修复。
Method 7: Reset TCP/IP Configuration & Windows Sockets
很少有用户报告说，当您重置 TCP/IP 配置以及Windows网络套接字时，他们可以修复以太网(Ethernet)没有有效的 IP 配置。执行给定的说明以进行尝试：
1.在搜索菜单(Search Menu)中键入命令提示符(Command Prompt)。单击以管理员身份运行(Run as administrator)。
2.一一键入以下命令(commands)，并在每个命令后按 Enter 键。(Enter key)
ipconfig /release
ipconfig /all
ipconfig /flushdns
ipconfig /renew
3. 现在，键入netsh winsock reset并按Enter 键(Enter key)执行。
4、同理，执行netsh int ip reset 命令。
5.重新启动您的 PC(Restart your PC)以应用这些更改。
另请阅读：(Also Read:) 修复计算机不断崩溃的 7 种方法(7 Ways to Fix Computer Keeps Crashing)
方法 8：重新启用网络接口卡(Method 8: Re-Enable Network Interface Card)
您需要禁用然后启用NIC来修复以太网(Ethernet)没有有效的 IP 配置问题。
1. 按 Windows key + R keys 启动运行(Run)对话框。
2. 然后，输入ncpa.cpl并回车。
3. 现在右键单击面临问题的NIC ，然后选择(NIC )禁用(Disable)选项，如图所示。
注意：(Note:)我们在这里以Wi-Fi NIC为例。按照相同的步骤进行以太网(Ethernet)连接。
4. 再次右键单击它并在几分钟后选择启用。(Enable)
5.等待(Wait)它成功接收到IP地址(IP address)。
方法 9：更改网络适配器设置
(Method 9: Change Network Adapter Settings
)
IPv4地址具有较大的数据包，因此当您将其更改为(IPv4)IPv4而不是IPv6时，您的网络连接将会稳定。按照下面提到的步骤来修复以太网(Ethernet)没有有效的 IP 配置错误：
1. 同时按Windows + I keys打开 Windows设置。(Settings.)
2. 选择网络和 Internet(Network & Internet)设置，如图所示。
3. 然后，单击左侧窗格中的以太网(Ethernet)。
4.向下滚动(Scroll)右侧菜单，然后单击相关设置(Related settings)下的网络和共享中心(Network and Sharing Center)。
5. 在这里，单击您的以太网连接。( Ethernet Connection.)
注意：(Note:) 确保(Make)您已连接到以太网(Ethernet)连接。我们在这里以 Wi-Fi 连接为例。
6. 现在，单击属性(Properties)。
7. 取消选中标有Internet Protocol Version 6(TCP/IPv6)的框。
8. 接下来，选择Internet Protocol Version 4(TCP/IPv4) 并单击属性。(Properties.)
9. 选择标题为使用以下 DNS 服务器地址的图标。(Use the following DNS server addresses. )
10. 然后，在相应字段中输入以下值。
首选 DNS 服务器：8.8.8.8
备用 DNS 服务器：8.8.4.4
11.接下来，选择退出时验证设置，(Validate settings upon exit)然后单击确定(OK)。关闭所有屏幕。
另请阅读：(Also Read:) 修复 HP 笔记本电脑未连接到 Wi-Fi(Fix HP Laptop Not Connecting to Wi-Fi)
方法 10：更新以太网驱动程序(Method 10: Update Ethernet Driver)
将网络驱动程序更新到最新版本对于设备的顺利运行非常重要。
1. 导航到制造商网站(manufacturer website )并下载所需的网络驱动程序，如图所示。
2. 点击开始(Start)并输入设备管理器(device manager)。然后，单击打开(Open)。
3. 双击网络适配器(Network adapters)部分将其展开。
4. 右键单击您的网络驱动程序(network driver)（例如Realtek PCIe FE 系列控制器(Realtek PCIe FE Family Controller)）并选择更新驱动程序(Update driver)，如下图所示。
5. 选择“浏览我的计算机以查找驱动程序软件。(Browse my computer for driver software.)”
6. 现在，单击让我从计算机上的可用驱动程序列表中选择。(Let me pick from a list of available drivers on my computer.)
7. 选择第一步( Step 1)下载的网络驱动(network driver)，点击下一步(Next)。
8. 对所有网络适配器重复相同的操作。
方法 11：重新安装以太网驱动程序(Method 11: Reinstall Ethernet Drivers)
您可以卸载驱动程序并再次安装它们以修复以太网(Ethernet)没有有效的 IP 配置错误。因此，请按照下面提到的步骤来实现相同的：
1. 和之前一样，转到Device Manager > Network adapters。
2. 右键单击您的网络驱动程序(network driver)并选择卸载设备(Uninstall device)，如下图所示。
3. 当要求确认时，选中标记为删除此设备的驱动程序软件(Delete the driver software for this device)的框，然后单击确定。(OK. )重新启动您的电脑。
4A。单击操作(Action)>扫描硬件更改(Scan for hardware changes)，如下图所示。
4B。或者，导航到制造商网站(manufacturer website)（例如英特尔(Intel)）以下载和安装网络驱动程序。
5. 重新启动您的 PC 以保存更改。
受到推崇的：(Recommended:)
我们希望本指南对您有所帮助，您可以修复以太网在您的设备中没有有效的 IP 配置(Ethernet doesn’t have a valid IP configuration)错误。让我们知道哪种方法最适合您。此外，如果您对本文有任何疑问/建议，请随时将它们放在评论部分。
Fix Ethernet Doesn't Have a Valid IP Configuration Error
Ethernet doesn’t have a valid IP configuration error is caused because DHCP or Dynamic Host Configuration Protocol is unable to get a valid IP Address from your NIC (Network Interface Card). The Network Interface Card is typically a hardware component through which your PC can connect to the network. Without NIC, your computer cannot establish a stable network connection and is usually paired with your Modem or router via an Ethernet cable. Dynamic IP configuration is enabled, by default, so that a user does not need to manually enter any settings to connect to a network with a DHCP server. But because your Ethernet doesn’t have one, you won’t be able to access the internet and you might get an error like Limited connectivity or No internet access. Read below to learn how to fix Ethernet Doesn’t Have a Valid IP Configuration Error in Windows PCs.
How to Fix Ethernet Doesn’t Have a Valid IP Configuration Error
This error can be caused by many reasons. Some of them are:
- Faulty Network Adapter Driver
- Incorrect Network Configuration
- Faulty or Malfunctioning Router
In this section, we have compiled a list of methods that will help you fix the said error. Implement them to attain the best results.
Method 1: Restart Router
Restarting the router will re-initiate the network connectivity. Follow the below-mentioned steps to do so:
1. Find the ON/OFF button at the back of your router.
2. Press the button once to turn OFF your router.
3. Now, disconnect the power cable and wait until the power is entirely drained from the capacitors.
4. Reconnect the cable and turn it on.
Method 2: Reset Router
Resetting the router will bring the router to its factory settings. All the settings and setups like forwarded ports, black-listed connections, credentials, etc., will be erased.
Note: Make a note of your ISP credentials before you reset your router.
1. Press and hold the RESET/RST button for about 10 seconds. It is usually built-in by default to avoid an accidental press.
Note: You have to use pointing devices like a pin, screwdriver, or toothpick to press the RESET button.
2. Wait for a while till network connection is re-established.
Method 3: Restart Your PC
Before trying the rest of the methods, you are advised to reboot your device as often, a simple restart is able to solve minor glitches.
1. Navigate to the Start menu.
2. Now, click Power icon > Restart, as shown.
Also Read: Why is My Windows 10 Computer So Slow?
Method 4: Run Network Adapter Troubleshooter
Running the Network Adapter Troubleshooter will resolve any glitches in the Ethernet connection and possibly, fix Ethernet doesn’t have a valid IP configuration error.
1. Type troubleshoot in the Windows Search Bar and hit Enter.
2. Now, click Additional troubleshooters as depicted below.
3. Next, select Network Adapter displayed under Find and fix other problems section.
4. Click on the Run the troubleshooter button.
5. Now, the Network Adapter troubleshooter will open. Wait for the process to be completed.
6. Choose Ethernet on Select the network adapter to diagnose screen and click Next.
7. If any issue is found, click on Apply this fix and follow the instructions given in successive prompts.
8. Once the troubleshooting is completed, Troubleshooting has completed screen will appear. Click on Close & Restart Windows PC.
Method 5: Turn Off Fast Startup
Turning off the fast startup option is recommended to fix Ethernet doesn’t have a valid IP configuration error, as follows:
1. Search and Open Control Panel through Windows Search Bar, as depicted below.
2. Set View by > Large icons and click on Power Options.
3. Here, click the Choose what the power button does option as highlighted below.
4. Now, click on Change settings that are currently unavailable under Define power buttons and turn on password protection as depicted.
5. Uncheck the box marked Turn on fast startup (recommended) as shown below.
6. Finally, click on Save changes and restart your PC.
Also Read: Why My Internet Keeps Disconnecting Every Few Minutes?
Method 6: Restart DNS & DHCP Client
Domain Name Servers convert domain names into IP addresses to be assigned to your computer. Similarly, DHCP client service is required for error-free internet connectivity. If you face network-related issues, you can restart DHCP & DNS client to troubleshoot them. Here’s how to do so:
1. Press Windows + R keys together to launch Run dialog box.
2. Type services.msc, then hit Enter to launch Services window.
3. Right-click on Network Store Interface Service tab and select Restart, as shown.
4. Navigate to DNS client in the Services window. Right-click on it, and select the Refresh option, as illustrated below.
5. Repeat the same for refreshing DHCP client as well.
Once the restart process is completed, check if the issue is resolved or not. If not, try the next fix.
Method 7: Reset TCP/IP Configuration & Windows Sockets
Few users have reported that they could fix Ethernet doesn’t have a valid IP configuration when you reset TCP/IP configuration along with Windows network sockets. Implement the given instructions to try it out:
1. Type Command Prompt in the Search Menu. Click on Run as administrator.
2. Type the following commands one by one and hit Enter key after each command.
ipconfig /release
ipconfig /all
ipconfig /flushdns
ipconfig /renew
3. Now, type netsh winsock reset and press Enter key to execute.
4. Similarly, execute netsh int ip reset command.
5. Restart your PC to apply these changes.
Also Read: 7 Ways to Fix Computer Keeps Crashing
Method 8: Re-Enable Network Interface Card
You would require to disable and then, enable NIC to fix Ethernet doesn’t have a valid IP configuration issue.
1. Press Windows key + R keys to launch Run dialog box.
2. Then, type ncpa.cpl and hit enter.
3. Now right click on the NIC that is facing the issue and select Disable option, as shown.
Note: We have shown Wi-Fi NIC as an example here. Follow the same steps for your Ethernet connection.
4. Again, right-click on it and select Enable after a few minutes.
5. Wait till it successfully receives an IP address.
Method 9: Change Network Adapter Settings
IPv4 address has larger packets, and hence your network connection will be stabilized when you change it to IPv4 instead of IPv6. Follow the below-mentioned steps to do so in order to fix Ethernet doesn’t have a valid IP configuration error:
1. Press Windows + I keys simultaneously to open Windows Settings.
2. Select Network & Internet settings, as shown.
3. Then, click on Ethernet in the left pane.
4. Scroll down the right menu and click on Network and Sharing Center under Related settings.
5. Here, click on your Ethernet Connection.
Note: Make sure you are connected to an Ethernet connection. We have shown Wi-Fi connection as an example here.
6. Now, click on Properties.
7. Uncheck the box marked Internet Protocol Version 6(TCP/IPv6).
8. Next, select Internet Protocol Version 4(TCP/IPv4) and click on Properties.
9. Select the icon titled Use the following DNS server addresses.
10. Then, enter the below-mentioned values in the respective fields.
Preferred DNS server: 8.8.8.8
Alternate DNS server: 8.8.4.4
11. Next, select Validate settings upon exit and click on OK. Close all screens.
Also Read: Fix HP Laptop Not Connecting to Wi-Fi
Method 10: Update Ethernet Driver
Updating network drivers to the latest version is important for smooth functioning of your device.
1. Navigate to manufacturer website and download the desired network drivers, as shown.
2. Click on Start and type device manager. Then, click on Open.
3. Double-click on Network adapters section to expand it.
4. Right-click on your network driver (e.g. Realtek PCIe FE Family Controller) and select Update driver, as depicted below.
5. Select “Browse my computer for driver software.”
6. Now, click on Let me pick from a list of available drivers on my computer.
7. Select the network driver downloaded in Step 1 and click on Next.
8. Repeat the same for all network adapters.
Method 11: Reinstall Ethernet Drivers
You can uninstall the drivers and install them again to fix Ethernet doesn’t have a valid IP configuration error. So, follow the below-mentioned steps to implement the same:
1. Go to Device Manager > Network adapters, as earlier.
2. Right-click on your network driver and select Uninstall device, as depicted below.
3. When asked for confirmation, check the box marked Delete the driver software for this device and click OK. Restart your PC.
4A. Click Action > Scan for hardware changes, as depicted below.
4B. Or, navigate to manufacturer website e.g. Intel to download & install network drivers.
5. Reboot your PC to save changes.
Recommended:
We hope that this guide was helpful and you could fix Ethernet doesn’t have a valid IP configuration error in your device. Let us know which method worked for you the best. Also, if you have any queries/suggestions regarding this article, then feel free to drop them in the comments section.
