When the router is turned off and then turned on again but cannot connect to the internet, it may be caused by various reasons. Here are some possible reasons and corresponding solutions: 1. Check the physical connection
1. Power and cables: - Ensure that the router's power cord is properly plugged into a power outlet and is not loose or damaged- Check if all cables connected to the router (such as Ethernet cables, telephone lines, etc.) are securely connected and not loose or detached.
2. Interface and indicator lights: - Observe the indicator lights of the router, which usually indicate power, network connections, etc. If the relevant indicator lights do not light up or flash abnormally, it may be a connection problem or hardware malfunction- For wired connections, check if the Ethernet interface is securely plugged in and if the Ethernet cable is not damaged. 2、 Check network settings
1. Account and password: - If the router needs to enter a broadband account and password to connect to the Internet, ensure that the information is correct. You can check and reset it in the management interface of the router (usually accessed through the IP address of the router through a browser).
2 DNS settings:- DNS (Domain Name System) is a system that converts domain names into IP addresses. If the DNS settings are incorrect, it may result in inability to access the internet. You can check the DNS settings in the router's management interface and try to modify them to public DNS addresses (such as 8, 8, 8, 8 and 8, 8, 4, 4, which are free DNS services provided by Google).
3 IP address conflict: - Ensure that no devices are using the same IP address within the same local area network. You can view the IP address list of connected devices through the router's management interface and make necessary adjustments. 3、 Restart and reset the router
1. Restarting the router: Sometimes a simple restart operation can solve temporary problems. You can try unplugging the power cord of the router, waiting for about 30 seconds before reinserting and turning on the power.
2. Reset router: - If the problem persists after restarting, you can consider resetting the router to factory settings. This is usually done through the Reset button on the back of the router. Use a needle tip or other small object to press and hold the button for about 10 seconds until the LED light flashes. But this operation will clear all custom settings and requires reconfiguration. 4、 Check the router hardware
1. Hardware malfunction: If none of the above methods can solve the problem, it may be due to a hardware malfunction in the router. You can check if the router's network card is damaged and if the CPU temperature is too high. If you suspect a hardware malfunction, it is recommended to contact the router manufacturer or professional technical support personnel for repair or replacement. 5、 Contact the network service provider
-If none of the above steps can solve the problem, it may be a problem with the network service provider. You can contact the customer service department of the internet service provider to report the issue and seek assistance. summary
The problem of not being able to connect to the internet after turning off the router may be caused by various reasons, including physical connection issues, network settings errors, router hardware failures, etc. By investigating these possible causes one by one and taking corresponding solutions, the problem can usually be resolved. If the problem persists, it is recommended to seek professional technical support.