The machine suddenly can t access the Internet, why can t I access the Internet all of a sudden?

After a long time, the computer will have different degrees of minor problems, and the computer should be checked and maintained frequently!

I think it should be a fan problem, heat dissipation is not good, if you haven't disinfected for a long time or cleaned up file garbage, it is recommended that you clean up frequently! Thank you!

The solution to the problem that the computer cannot connect to the Internet.

If your mobile phone cannot access the Internet normally, please check the following conditions:

1.After upgrading to 4G**, if you do not restart your phone, you will not be able to use the Internet function normally;

2.Check whether there is a network, it is recommended that you can use it in a place with a strong signal;

3.Check whether there is still a credit in the account, if the balance is insufficient, you need to recharge before you can use it;

4.Confirm whether the parameters of the mobile phone have been set;

5.Check whether the USIM card is inserted, if it has been inserted but still cannot be used, it is recommended that you go to the business office to check whether the USIM card is faulty, or replace the card for testing;

6.Check if there is any problem with the phone, it is recommended that you change the phone for testing.

If the above situation is not resolved, you can contact your local customer service to deal with it.

The computer suddenly can't access the Internet to try the solution:

1. LAN often happens, it may be that the port is banned, and it can be reopened;

2. Check whether the firewall is blocked, you can check whether your DNS settings are correct;

3. Enter nslookup in the command prompt window and then enter a **, if you can give an IP normally, it means that the domain name resolution is correct, and the system is reinstalled;

4. Open the tool Internet Tools, and then restore all to the default try.

5. If it is not the above fault, then check whether there is a conflict in your IP settings, and then see if there is a problem with the network card. If it doesn't work, find another computer and try to remove its network card.

Deal with it with 360 Guard's disconnected first aid kit. There is a standalone version of the extraction available online.

It doesn't necessarily solve the problem, but it can help you find out where the fault is.

Hello friends:

The computer suddenly can't access the Internet, which is likely to be the phenomenon of router data blockage, the general router has been used for a long time, because there has been no restart for a long time, the network data inside is blocked or not smooth, there will be a phenomenon that the computer suddenly does not go online, generally encountering such a phenomenon, you can turn off the power of the optical modem and the router, after five minutes, plug in the power again, it can generally be solved, because the router is turned off, the data is restored to the state when it was just set, and it will not be blocked, In this way, the IPv4 of the computer will also be normal, and you can also surf the Internet.

Hope it helps you and I wish you happiness

The IP address of the computer is obtained normally, it is recommended to restart the wireless router to try, or the wiring is poor, the router has too many users, and the bandwidth is not large enough.

See if your network cable is loose and plug it back in.

If it's not a problem with the network cable, then it's a problem with the computer, turn on your PC Manager.

Click on the full check-up, which will scan all the problems with your computer, including your network problems.

After scanning, click on one-click repair, and wait for the repair to be completed.

If you really can't solve the problem of not connecting to the Internet, and you need to use a computer, then connect to wifi and click on the computer icon in the lower right corner.

Tap on a wifi to connect.

It's very simple, someone else rubbed the network, people occupied your network source, such as in the next thing, the signal is poor, someone in your family can be on and someone can't get on, the solution, change the wifi password, change the routing password, if you understand, use some housekeeping software on the computer to open the anti-rubbing network setting.

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6. If the network cable is not connected incorrectly.

Plug the ** crystal head plugged in the modem into the ** machine, lift the earpiece, and listen to whether there is a current sound, if there is, it proves that the line is not broken, but the ADSL signal is not normal. Otherwise, the line is interrupted, hurry up and call the operator with your mobile phone, tell them the situation you analyzed, and someone should deal with it soon.

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Now the network is the most stuck, you can get on it later.

The recurring of the network card problem may be caused by the replacement of the network card.

First of all, see whether the network card driver is installed; secondly, some notebooks have to see if the wireless network switch is turned on; Again, disable the local connection before enabling it. See if the problem is solved.

In this case, you can unplug the external network cable from the route, and then plug it into the chassis and dial again, if not, the Unicom server is smashed! Only cups!