Solution to 678 broadband connection error in Win7

Solution to 678 broadband connection error in Win7

Networks have almost become an indispensable part of our lives, and various problems often occur before we connect to the Internet. Recently, some users reported that the broadband connection was not successful. The dialog box indicating that the bandwidth connection error 678 is displayed. The same problem still exists during the redial operation. What's going on? Next we will share with you the Cause Analysis and Solution of 678 broadband connection error in Win7.

　　Error 678 explanation:

The remote computer does not respond, meaning sending data from the computer to the NIC, including telephone line transmission, local terminal (IDC end of the Telecommunications Bureau) when the port of the terminal board is processed to return data to the computer, a message indicating a problem occurs during data transmission.

Cause analysis:

Possible DSLAM device problems, server room User Board problems, trunk cable problems, wiring Cable Problems, user MODEM problems, user network card problems, user computer system problems may cause error 678.
　　
Solution:

1. Check the network connection status and unplug the network cable. Check whether the network cable or telephone line is correct;
2. Try to delete the broadband connection and create a new network connection;
3. Check whether the Modem signal lights are normal and the computer Nic lights are normal. Then, restart the Modem to connect to the computer for 5 minutes;
4. If the power supply of some Modem is insufficient, the error 678 may also occur. Check the Modem power supply;
5. You can try to press the Reset button after the ADSL Modem to restore the default Modem status;
6. Disable the ADSL Modem, enter the network connection on the control panel, right-click the local connection, select disable, restart the computer, enable the local connection (NIC), and try to enable the ADSL Modem dialing;
7. If the NIC lamp is displayed normally, you can uninstall the NIC Driver and reinstall the NIC Driver;
8. The password may have been stolen. You can change the password at the service desk;
9. Contact the network provider in your region, such as China Telecom 10000, China Unicom 10010, and China tietong 10050. Ask them to refresh the port and shut down the service and try again 15 minutes later;
10. If you are an ADSL user, your phone may be in arrears. Please consult the customer service center. Users of China Telecom or China Unicom in some regions can access the Internet when the phone bill is overdue;
11. If the ADSL Modem device is damaged, the error 678 may occur. Although the ADSL Modem works normally on the surface, the connection fails. We recommend that you try another ADSL Modem;
12. If there is a line problem, you can change the network cable and try again. It may also be caused by the aging of the telephone line. If it is useful for telephone separation, you can also check whether there is a problem;
13. system software problems, network software interference, such as firewalls, anti-virus software, and Internet assistants, try to disable them and then dial;
14. If the problem occurs automatically for a period of time and then fails, it may be caused by a problem with your cat or computer.

The Cause Analysis and Solution of Win7 broadband connection error 678 are introduced here. Through the above introduction, you should understand the problems represented by this error code, when this problem occurs, you can solve the problem.