Why can t I connect to the Internet all of a sudden? Hurry!!

It may be that the network cable is loose, or dropped, or the network cable in your community has been stolen, or there are any special circumstances, if so, then someone will come to repair, if it is not for these problems, then you will call** to the service staff, he will come to help you, or in ** will tell you, I last time was to hit a **, he told me to wait a while, and then he called someone else**, it seems that he logged in on the Internet and logged in to my family's number, ah or something, and then I can get on o( o haha Wangchun hand hit...

Will it be that the network cable is loose, or you need to dial up to access the Internet, if it is through the router, check whether the network cable is loose.

I guess if your network cable drops, or if you restart the route, there's no misconfiguration of the route.

Check whether there is a problem with the broadband line, then the problem with the network card, and then if there is a problem with the system, reinstall the system and then install the broadband connection.

Restart your router and try it, if it doesn't work, restore the router's factory settings, or if it doesn't work, there is a problem with the operator that provides your network service.

How to restart your router You can refer to the experience.

See how they do it.

Problems with the network card;

Problems with telecommunications or network carriers.

If it is dial-up Internet error **678, it means that there is a problem with the local network card or network cable.

First, test the network, if it's okay, check the route, and then check the computer.

What system, what situation can't be used, the same network, other computers can access the Internet?

Change the router, see if it works, if it doesn't work, then you can re-pull the network cable to see it.

1. Whether the hardware such as network cable and network card is normal;

2. Whether the network is normal;

3. Whether the various settings are normal (such as whether the IP and other settings are correct) 4, the cause of the virus (check and kill the virus, some viruses will also cause the computer to not be able to access the Internet) 5, whether the network speed is selected correctly (whether the value of line speed is selected correctly is also related to whether the user can access the Internet, and the network card of the computer used by some users does not support too high network speed, and the network speed is set high, and the user cannot access the Internet).

6.If it is broadband, it needs a username and password, and if it is fiber, it needs an IP number 7Check to see if it's in arrears. Reasons such as the connection is not available.