When Windows displays "No Internet Access", most of them are system or setup issues rather than network failures. 1. First check whether the device is connected correctly, confirm whether other devices can access the Internet, whether the router status is normal, and try restarting the router. 2. Use the Windows-owned network troubleshooting tool to automatically detect and fix common problems. 3. Update or reset the network driver, update or uninstall the network card driver through the Device Manager, or disable it and enable the network card. 4. If it still cannot be resolved, run the command prompt as administrator and execute the netsh winsock reset and netsh int ip reset commands to reset the TCP/IP protocol and Winsock settings. The above steps can basically solve most problems. If they are invalid, they may be a system or hardware problem and need further investigation.

When Windows shows "No Internet access", don't rush to restart your computer or suspect that the network is broken. This situation is often a system or setup problem, rather than a real disconnection of the network. The solution is actually not complicated, and the following common directions can basically help you solve them.

1. Check whether the network connection is normal

First, confirm if it is a problem with your equipment. See if other devices can access the Internet, such as mobile phones, tablets or other computers. If they don't have signals, it might be a problem with the router or broadband.

• If you have a wired connection, check if the network cable is plugged in.
• If it is a wireless connection, make sure that the correct Wi-Fi is connected.
• An abnormal router status light may also cause a network outage. You can try to unplug the power supply and restart the router.

Sometimes it is just a brief network fluctuation, and you can recover by restarting the router.

2. Use the network troubleshooting tool

Windows comes with a network troubleshooting tool that can automatically detect and fix some common problems.

Operation path:

• Click the network icon in the lower right corner of the taskbar
• Find Troubleshooting or Troubleshooting on the Internet
• After running, follow the prompts

This tool will check for common configuration errors, such as IP acquisition failure, default gateway failure and other problems. Most of the time it can be automatically repaired, saving you from checking step by step.

3. Update or reset the network driver

A problem with the driver of the network adapter can also cause "no Internet access". You can try updating or reinstalling the driver:

• Press Win X and select Device Manager
• Expand "Network Adapter" and right-click on your network card (wired or wireless)
• Select Update Driver or Uninstall Device
• After restarting the computer, the system will automatically reinstall the driver

If you are not sure which network card is currently in use, you can also use third-party driver tools to assist in the update.

In addition, you can also try manually disabling and enabling the network card:

• Open Control Panel > Network and Internet > Network and Sharing Center
• Click "Change Adapter Settings" on the left
• Right-click the currently used network connection, first "disable" and then "enable"

4. Reset TCP/IP protocol and Winsock settings

If the above methods do not work, it may be a problem with the system network protocol stack. You can reset it through the command prompt:

Open a command prompt (CMD) as an administrator and run the following commands:

 netsh winsock reset
netsh int ip reset

After running, restart the computer. These two commands reset the network-related core components and are suitable for some deep network connectivity issues.

Basically these commonly used methods. Most of the "no Internet access" problems can be solved through the above steps. If you try all of them, you may still not work. You may need to consider system file corruption or hardware problems. At this time, you can consider system repair or contact professionals to investigate further.

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