What should I do if the computer is not connected to the Internet, the computer is not connected to

Just ask someone to take a look.

The solution to the network cable is connected but the computer cannot connect to the network is as follows:

1. It may be a problem with the DNS address, and the machine that can access the Internet may have a DNS address saved and eliminated by itself.

2. Check the router settings, if DHCP and other services are not enabled, the wireless network may not be used normally.

3. Check whether the wireless router filters out the MAC address, and if so, you need to add a new MAC address in the router settings.

A network cable is essential for connecting to a local area network. There are three types of network cables commonly found in LAN: twisted pair, coaxial cable, and optical cable.

A twisted pair is a data transmission line that consists of many pairs of wires. Its hall is characterized by cheapness, so it is widely used, such as our common line.

It is used to connect to the RJ45 head. It is divided into two types: STP and UTP, and we commonly use UTP.

Brief introduction of network cable: A network cable is a connection cable that connects a computer to a computer, and a computer to other network equipment. Commonly used network cables are twisted pairs, thin coaxial cables, and optical fibers.

Using a thin coaxial cable for a network connection is relatively simple, as long as each computer or network device is connected in series, but it is more cumbersome to maintain, and if something goes down, the entire network can be paralyzed.

If you add or remove a computer from the network, you must stop working on the network until the computer is added or removed before you can continue to use it.

At the same time, this approach necessitates a bus-based topology, which is rarely used <> today

1. Unicom's network is indeed not too stable, and it will not be able to go to the network, and the service quality of customer service is not good.

2. It may be a virus in your system, it is recommended that the landlord delete the original broadband connection, and then create a new connection wizard.

3. After clicking the broadband connection icon, try to re-enter the password.

There are several reasons, first you should take a look at the status of the cat (router) and then do the following measures. If it is connected to the ** line (Netcom), then it depends on whether you are connected to the main line, if not, it is directly connected to the main line; There are also online neighbors on the computer, and you can't find the corresponding folder and can't connect to the Internet, so you can create a new network connection....

1.Check whether the second link light of the modem is always on, if the link is always on, you can determine that there is no problem with the line, at this time, check whether there is a problem with the computer network card, such as the network card failure, please replace it directly; In addition, if the modem works for a long time, it will also cause this phenomenon to be caused by the heating of the internal electronic components, and restarting the modem and the computer can usually solve the problem.

2.If the link light is not on, check the indoor wiring. First of all, dial ** to see if it is normal, if it is normal, please check whether the wiring of the separator is correct or whether the wiring is loose, as well as the connecting wires of the modem, computer network cables, etc.; If you can't get through, or you can't solve it yourself, please call your broadband service provider directly and ask for assistance.

If you are using a router, disconnect the router for stand-alone dial-up test first;

If you have a modem device, you need to pay attention to whether the device is overheating, you can turn it off for a few minutes and then restart it.

If the connection drops when running the program alone (compared to if it drops while playing a game), it is recommended to restart the computer to try or reinstall the program;

If the entire network is disconnected, check whether the access cable and the network cable are loose or in poor contact, and try to reseat the line.

Check and filter out the disconnection caused by computer viruses and scan the whole disk.