Narrowband 678, how to solve 15

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.

Is the CD or DSL light on this cat always on or not?

If it doesn't light up, call it directly to the network business, and you can also call them if it lights up

Error 678, we received such a **, first call the user to start again, if not, go directly to the door to deal with it, replace the cat, check the line, we do it

Broadband error 678 is a common fault message encountered by PPPOE dial-up Internet users. To put it simply, the network is not working. The common cause of this problem is that the communication between the user modem and the ISP service provider is blocked.

1. Check whether the modem signal light is normal and whether the computer network card light is normal, and try to restart the modem and connect with the computer after 5 minutes. 2. Check the connection status of the network cable and unplug the network cable, and consider whether it is the reason for the network cable or ** line. 3. Consider the conflict of various software that should be sold in the process of use, which will also cause network failure.

Recall what software you installed and what settings you changed before 678 appeared. For example, the "Internet Assistant", anti-virus software, or firewall has an abnormal error "678" prompt. Therefore, when you find the error "678", you can first try to temporarily uninstall the "Internet Assistant", exit the antivirus software, or temporarily turn off the firewall and reconnect to see if it can solve the problem.

4. Try to delete the broadband connection and create a new one. 5. Turn off adslmodem, enter the network connection of the control panel, right-click the local connection and select disable, restart the computer, then enable the local connection (network card), and try to turn on the adslmodem dial-up; 6. If the NIC light is normal, you can try to uninstall the NIC driver and reinstall the NIC driver. 7. If multiple computers use routers to access the Internet, you can try to connect to InternT directly with modem.

If you can access the Internet, it means that the router is faulty, and you should set up the router correctly or replace it with a new one. 8. Insufficient power supply of some modem is also easy to cause error 678, try to check the modem power supply. 9. You can try to press the reset button after adslmodem to restore the default state of modem.

10. ADSLMODEM equipment damage will also cause error 678, although on the surface it seems that the search stool to adslmodem is running normally, but the connection fails, try to change a network provider in the contact area, China Telecom 10000, Unicom 10010, Tietong 10050, please help them refresh the port, restart and wait for 15 minutes before the leakage brigade goes online. 12. If you are an ADSL user, if this situation occurs during use, it may be **arrears, please consult the customer service center. In some areas, China Telecom or China Unicom users, in the case of arrears, can get through, but can not access the Internet, at this time it may also be in arrears, because now the telecommunications departments in some areas are not in arrears, but stop the use of the network.

13. There is also a possibility that the password has been stolen, you can go to the service desk to change the password. Customer service 48 is the answer. On-demand broadband, if you want to be fast, China Telecom Guizhou customer service*** reply to the keyword "on-demand broadband" can be handled directly, convenient and fast.

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 calendar embedded 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;

4. Please deactivate the local connection after deactivation, and then re-connect the broadband connection, the specific method: right-click the desktop network neighbor, select Properties, right-click the local connection in the new pop-up window, select Deactivate, and then right-click the local connection later, select Enable, if the dial is still prompted 678, you can call the customer service to contact the engineer to check;

Pay attention to clever doing: Try not to re-plug the network cable many times, re-plugging the network cable many times may damage the Xiaoheng crystal head.