The computer often can t connect to the Internet, why does the computer always can t connect to the

1.Error 678: The remote computer does not respond, it is generally possible that there is a problem with the computer system, a problem with the broadband modem or a line, which causes the broadband modem to fail to synchronize, or a problem with the equipment in the operator's computer room2

Check whether the status of the broadband cat is normal when the connection is dropped, there is a DSL or whether the link light is always on, the DSL or link light on the broadband cat indicates the communication status between your broadband cat and the operator's equipment room, it should be always on at normal times, if it is not bright or flashing, the biggest possibility is that there is a problem with your **line, directly call the operator's customer service** to report the obstacle and let people check and repair: Telecom 10000 Netcom 10060

Summary. 1.Check the availability of the network or router, usually if the route keeps on, try to force a power outage, and then restart the view after a while. At the same time, we also have to check whether our network fees are in arrears, etc., so as not to make the network unusable.

1.Check the availability of the network or router, usually if the route is always on, try to force a power outage and shut down the family pin, and then restart the review after a while. At the same time, we also have to check whether the Internet fee of our Zhaoqiao Tour is in arrears, so as not to make the network unusable.

2.Check whether the network in the computer is turned off, some laptops check whether the wifi switch is on, etc.

3.For windows just reinstalled can not go to the Internet because the computer does not have a network card driver, which is rotten, and in this case, we can be the first to miss the ** driver elf network card version to install the update driver.

4.If there is still a problem with the above method, it may be caused by the configuration file in the network, and you can try to reset the network by entering the command of Wuchang Yikuxiang. Press win+r to open cmd, enter netshwinsockreset to reset the network, and restart the computer after the reset.

If you are using Unicom Broadband, you may not be able to connect to the Internet, it may be due to the following reasons:

1. If the broadband is in arrears or expires, you need to pay or renew it in time.

2. If the network cable is loose, both ends of the network cable need to be plugged in tightly.

3. If the device is used for a long time, you can turn off the power of the optical modem, router, computer and other Internet access equipment for a few seconds, and then turn on the power supply and restart.

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.

If not, don't be angry! Sit back and have a cup of tea in the hot summer, the temperature is very high, don't you feel hot? You put me here and don't care about us; The temperature of my chip is above 40 degrees, the temperature of the hard disk is higher than 45 degrees, and the temperature of the network card is more than 80 degrees; Can you work in such an environment?

You still have a fan or an air conditioner or something, do you mind my business? The same goes for our devices (devices are: cats, routers, network switches, hubbles, computers, etc.) that feel hot and can't work for you anymore; You can't go to the Internet, you look for masters in the north and south, don't cool me down, you can't find anyone (or replace cats, routers, etc.), because our brothers have the same temper, if you don't cool us down, we will strike!

You may wish to take a look at the following methods, and use measures that you feel are acceptable to reduce the temperature of my (equipment) working environment, I promise: continue to serve your elderly.

A: Users who often surf the Internet for up to half a year should open the shell of the device after the power is off and clean up the dust inside the device. b: Place the equipment in a safe place for people, open the lid of the equipment, use air convection to strengthen contact with the air, and naturally dissipate heat;

c: Install a micro fan to the equipment to increase the convection of air and force heat dissipation;

D: If you are doing IT, I suggest that you install a heat sink on the heating part of the device after disconnecting the power supply.

e: After the equipment is disconnected from the power supply, use a 3mm drill bit to drill many holes up and down the equipment to strengthen the air convection flow and improve the heat dissipation conditions;

f: To ventilate and dry the equipment, it is best to make an insulated heat dissipation bracket (there are also notebooks on the market) to support the equipment for natural heat dissipation;

H: Let the adsl cat sync first: power off the cat and restart it.

i: The software settings are reasonable, so that 3 do not install: do not install informal software, do not install P2P (occupy resources) software, and do not install infrequently used software.

Turn off all unnecessary network connections, such as Thunderbolt BT Donkey, etc.;

j: Optimize the network Personally, it is recommended to use some gadgets such as Super Rabbit, Optimizer or 360, etc.K: The computer should have at least one valid and genuine antivirus software installed l:

NIC problem: The NIC has the appropriate bandwidth and works stably. As long as you take care of our brothers (routers, cats, hubble, network switches and their computers), our brothers promise to really do it:

You respect me, I respect you" for your faithful service. Otherwise, ride a donkey and read the record book--- let's see! Thank you for adopting my answer!