I have a 678 error on my computer, what is the reason?

678 meaning is:

The remote computer is not responding; That is: from the computer to send instructions to the network card to send data, including the transmission of the ** line to the upstream circuit of the port of the terminal board of the office (telecommunications bureau computer room end); When the port of the terminal board of the central office (telecommunications office computer room end) processes the data transmission problem during the downstream circuit that returns the data to the computer, it will prompt a 678 error. In other words, the network is not available.

678 "Processing Steps and Methods:

1. Have you ever touched the cat's connection and line recently? Then check whether the light on the "cat" will flash, if you want to flash, check whether the wiring is correct, if the connection is still flashing, check whether the ** line has a connector, and the line oxidation contact is not good will also cause the signal to be unstable.

2. Confirm that the cat dial-up is normal, and the IP that the network card will automatically obtain is not cleared, so when dialing again, the network card cannot obtain a new IP address, and it will prompt 678; The operation method is: turn off the cat, enter the network connection of the control panel, right-click the local connection to select disable, right-click the local connection after 5 seconds to select enable, and then turn on the cat dial-up;

3. If the first step is invalid, turn off the cat, still disable the local connection (network card), restart the computer, then enable the local connection (network card), and then open the cat to solve the problem;

4. When the above steps are invalid, check the network card and network cable.

5. The NIC light is normal, steps 1 and 2 are invalid, uninstall the NIC driver, and reinstall the NIC driver.

6. If the above operation is invalid, contact the telecommunications department to confirm the port. See if the port on the telecommunications bureau is loose, causing the line to be blocked.

7. Multiple computers are connected to a hub or network switch, router, etc., when the access port of the public equipment is damaged, there will also be a "678 error", and the port can be replaced.

8. Sometimes, although the network situation is normal after the telecom test, there will still be a prompt of "678", and the conflict of various application software should be considered at this time. For example, the "Yahoo Assistant", anti-virus software, or firewall has an abnormality, causing a "678" prompt. If you notice the error "678", uninstall Yahoo Assistant, quit the antivirus software, or temporarily turn off the firewall and reconnect to see if the problem is resolved.

9. When the above methods are invalid: restart the "cat" and the computer, which may be effective.

10. If you really can't do it, call 10,000 for repair.

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.

678 should be a network problem, please telecom to solve it.

One could be a network issue, and the other could be a problem with your network card.

Call ** to customer service, Telecom's is 10000, ask him to restart it for you.

678 should be a network problem, and calling 10000 can solve it quickly.

Calling customer service is a problem with the port.

The cat can be turned off and on again, unless the ADSL indicator is still flashing.

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, it may damage the crystal head.

Reason: 1. Error 678 is a fault prompt often encountered by broadband ADSL dial-up Internet users, which simply means that the network is not available.

2. Broadband ADSL dial-up Internet access uses PPPoE protocol connection, transmits data through ** line, uses ADSL special modem to realize data modulation and demodulation, the meaning of error prompt 678 is that the remote computer does not respond, which means that the computer sends instructions to the network card to send data outward, including the transmission of ** line, and the port of the terminal board of the local office (computer room end) processes the data transmission problems in the process of returning data to the computer.

Solution: 1. Open [My Computer] - [Control Panel] - [Network Connection].

2. Check whether the local connection is in the "disabled" state, click the local connection, if so, just double-click the local connection, and see the status change to "enabled".

3. If you don't even have a local connection, it's a network card problem.

4. If there is an error of error 769, most of them are disabled on the network card, so you can enable it!The causes are generally caused by the user's misoperation or some firewall software and computer viruses, which are very common.

If the local connection is not found, the driver of the network card is usually lost or the computer does not detect the network card, you can reinstall it.

5. If the computer is suddenly disconnected, it is recommended that the 360 security guard disconnect the network first aid kit for diagnosis.

6. If you encounter problems such as not being able to open the web page, logging in to the chat software, etc., it is recommended to diagnose the network comprehensively.

Take a look at whether your network cable is plugged in or whether the login account or password is correct If it's okay, it may be that you frequently click to log in, hang yourself from the broadband, turn off the cat, and try it in about 1 hour.

The most common error of 678 is mainly caused by the failure to connect with the network service provider. In general, you can try the solution:

First of all, restart the cat to try, cats often have this kind of problem after long-term use.

If the reboot persists, check whether the account password is correct and whether the line is normal.

If it still doesn't work, it turns out that it's not your problem (unless your cat is broken). You can call the service provider and let them help you solve it.

If such a failure occurs, there are generally the following four possibilities:

1. The network card is faulty;

2. There is a fault in the network cable;

3. There is a fault in the modem;

4. There is a problem with the network quality of the broadband service provider. . .

You can exclude from the top down.

Generally speaking, it is a problem with the port or ** line, and it should be good to contact the operator to replace it.