How to solve the problem that the wifi is connected and cannot access the Internet

Wi-Fi is connected but cannot access the Internet is a common network problem, which may be caused by various reasons, including router setting problems, network configuration errors, device failures, etc. When encountering this situation, there are some simple solutions we can take to try to restore the network connection.

First, we need to ensure that the wireless router is working properly. You can check whether the router is powered on and whether the indicator light is on. If you find that the router is faulty, you can try to restart the router or contact the network service provider for help.

After confirming that the router is working properly, we can try the following solutions:

1. Check the network connection: Click the Wi-Fi icon on your computer or mobile phone to view the connected Wi-Fi -Whether there is a "Connected, no Internet access" prompt on the Fi network. If so, it means there is a problem with the network connection. You can try disconnecting and reconnecting to Wi-Fi.

2. Check IP address and DNS settings: Sometimes there may be errors in IP address and DNS settings, resulting in inability to access the Internet. You can try the following operations:

   • For Windows systems, open the "Control Panel", enter "Network and Internet", click "Network and Sharing Center", select the connected Wi-Fi network, and in the pop-up Click "Properties" in the window, select "Internet Protocol Version 4 (TCP/IPv4)" in the "Network" tab and click the "Properties" button, make sure the "Obtain an IP address automatically" and "Obtain a DNS server address automatically" options Selected.
   • For Mac system, click the Apple icon, select "System Preferences", then open "Network", select the connected Wi-Fi network, and select "Use DHCP" in the "TCP/IP" tab , then click the "Advanced" button and delete any existing DNS server addresses in the "DNS" tab.
   • For Android and iOS devices, open the "Settings" app, select "Wi-Fi", long press the connected Wi-Fi network, select "Modify network" or "Advanced settings", then make sure "DHCP ” option is selected.
3. Clear DNS cache: Sometimes DNS cache may cause network problems. You can try clearing the DNS cache and restarting the device. For Windows systems, you can run the following command in the command prompt window: ipconfig /flushdns. For Mac systems, you can run the following command in the terminal: sudo killall -HUP mDNSResponder. For iOS and Android devices, you can try restarting the device to clear the DNS cache.
4. Update driver or firmware: Sometimes the device driver or router firmware may be outdated or incompatible, resulting in inability to access the Internet. You can try updating your Wi-Fi adapter's driver or router's firmware to resolve this issue.
5. Reset network settings: If none of the above methods work, you can try resetting the network settings. For Windows systems, you can find the "Network and Internet" option in the "Control Panel", click "Network and Sharing Center", then click "Change Adapter Settings", right-click the Wi-Fi adapter, select "Properties", click "Reset" Set button. For Mac systems, you can select "System Preferences", then open "Network", click the "Advanced" button, and select the "Restore Default" button in the "TCP/IP" and "DNS" tabs of the "Advanced" window. For iOS and Android devices, you can select the Settings app, then General, Restore or Reset, then Reset Network Settings.

If none of the above methods solve the problem, you may need to further check the device or contact the network service provider for technical support. Overall, Wi-Fi connected but no internet access is a common and frustrating problem, but with a few simple fixes, we can usually resolve the issue and restore network connectivity.

The above is the detailed content of How to solve the problem that the wifi is connected and cannot access the Internet. For more information, please follow other related articles on the PHP Chinese website!