Prompt 678 after the Internet was suddenly disconnected, how to solve it Which master can explain it

Reboot down. Just wait another 5 minutes at most!

1. Definition of Dialing Error:

Error 678 is one of the faults of broadband. The implication is that the remote computer is unresponsive. To put it simply, the network is not working.

Broadband dial-up Internet access uses PPPOE protocol connection, the meaning of error prompt 678 is, the remote computer is not responding, which means that the computer sends instructions to the network card to send data outward, including the transmission of network cables, and the port of the terminal board of the central office (computer room end) processes the data transmission problems in the process of returning data to the computer.

2. Common reasons:

There are many reasons for error 678, such as: equipment problems in the computer room, backbone cable problems, wiring cable problems, user network cable problems, user computer network card problems, user computer system problems, etc., which may lead to error 678. Another reason is that if you use a router, you usually don't need to use a broadband connection anymore, and if you use it again, you will get a 678 error.

3. Solution:

1. Please confirm whether you are using a router, if you are using a router, the dialing operation is completed by the router, and there is no need to manually dial the number on the computer;

2. Please confirm whether there are any software restrictions such as firewalls or other Internet assistants, and if so, it is recommended that you log out and then try to dial up;

3. Please check whether the network card light is flashing, check whether the crystal head is plugged in, and push the network cable inward for testing;

Note: Try not to replug the Ethernet cable more than once, reinserting the Ethernet cable multiple times may damage the crystal head.

I guess it's a virus. Let's get a firewall with APR next.

Of course, it could also be the network card to the divider (Netcom line. Now it's called Unicom), the quality is not good. Change the wire.

Other than that. I like to use a static IP address. ADSL cats, dispensed with DHCP, can sometimes be messy.

The remote server connection is not normal, it is that you can't connect to the network provider, call ** to repair.

fool us, the consumers.

1. Broadband Internet display "error 678", it is caused by modem damage, poor contact of network cable and network card, ** line obstruction, etc., if there is a router, it is recommended that you can first power off and restart, if it is still not available, it is recommended that you remove the router and check whether the modem signal light is normal:

1. If it is normal, please try to restart the network card, unplug the network cable, and restart the modem;

2. If it is not normal, please try to unplug the ** cable, restart the modem, check whether the separator is connected correctly and unplug the above cable.

2. If it cannot be solved, you can contact the local manual customer service for feedback.

1.or the password is wrong (which generally doesn't).

2.Call ** to Telecom, they will test your modem data (you have to turn on the computer), if it can't be measured, it proves that there is a problem with the line or the modem is broken, you can call the telecom to repair the line or go to the telecom to replace the modem.

3.Create a network connection 2 in the online neighborhood, and try to see if the network connection 3 can be connected.

4.If the network card is damaged, try it with a network card that is sure it is okay.

5.If the port is damaged, call Telecom to replace the port and try.

6.If none of the previous ones are true, then there should be a problem with the computer, and you can borrow a laptop to try. Personally, I think it is possible to reinstall the system or overhaul the motherboard.

There are too many possibilities for being squeezed out of the line or software conflicts and not being able to get on the network telecom 678 error, and my brother has been troubled recently. Four times a month, I played ** to troubleshoot telecommunications. To sum up the virtues are:

Most of them have nothing to do with the computer, and if you have 360, you don't need to diagnose, and it will prompt that the network card is broken. It has nothing to do with the plug. The main reasons:

1 The quality of the cat is not good, and most of them are now telecommetically configured, and this phenomenon appears the most. Restart for 10 seconds before dialing. 2. Network card or software conflict, redial more and dial a few more times, dial the first three and second lights of the cat to flash quickly and then dial again.

3. If the network signal is asymmetrical, turn off the local connection and turn it on again for five seconds, and then dial it again. Dial a few more times. 4. If there is a system error or a conflict in the running program, close all the current tasks.

Restart the cat for more than five seconds and then dial it. 5. Call ** to troubleshoot. Because many times you can't connect to it, your line is shut down when the telecom network is automatically assigned.

This is now the case in many urban villages, especially the subcontracted private ones. They have a similar bus platform, that is, when the network is good, everyone is good, and when the network is bad, people often squeeze out the line. It used to be called network traffic congestion, but now it is called network automatic allocation.

In the same way that routers can set bandwidth, they are automatically allocated. This is also the main reason why the 678 error often occurs.

The network cable is not connected or the password is wrong, it is estimated that the network is broken, big **, ask the person who installed the network cable for you, let him see what is going on.

It's the fault of the outdoor line, and you have to hit ** information!