Check whether the interface between the computer network cable and the router or switch is loose, or try to change the socket to see if it can be connected.

You can observe the router at home or the network cable on the computer case. Generally, flashing indicates that the line is ok. If it doesn't light up or flash slowly, it's a line problem.

It can be solved by replacing the socket or network cable.

Possibility 2: DNS error, you can access QQ but not the webpage.

Sometimes we find that QQ messages are received correctly, but we can't open a search page.

The most common reason for this situation is the DNS server parsing error.

QQ uses the DNS of its own server, so it can surf the Internet.

We need to open the control panel, double-click the network connection, right-click the local connection icon, and select the properties command from the pop-up menu. Under the General tab, double-click Internet Protocol (TCP/IP) in the following list of items for this connection. If you are currently using Auto Obtain IP Address, select Use the following IP address and select Use the following IP address.

If an IP address and DNS server have been assigned, please obtain the correct IP address and DNS server from the local network operator to replace them.

Possibility 3: IP and MAC are bound, and the router cannot connect to the network.

Another common situation is that you can access the internet directly by connecting with a network cable, but it is illegal to connect with a router.

This is most likely due to a router setup problem. In some places where network security is very strict, the management of the network is strict, and terminals distribute Internet information.

The main symptom of this approach is the same network configuration. As long as you change the machine or the network card, you will not be able to surf the Internet normally.

At this time, if we have multiple terminals that want to use the router to access the Internet, it will become particularly troublesome. At this time, you need to use MAC address cloning. You just need to connect the router with a machine that can surf the Internet normally, replace the IP of the WAN port with the IP of the machine that you can surf the Internet normally, and then clone the MAC.

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