What is the cause of the 678 error dial up connection timeout when connecting to a broadband conne

1. Fault phenomenon: Error 678, the remote computer does not respond, and the connection with the server cannot be established. 678 errors are generally caused by poor line quality, signal interference, and Internet access equipment.

2. Processing process: 1) It is recommended to check whether the modem synchronization light is always on, and the synchronization light is generally labeled as 'dsl', 'adsl', 'status' or 'link' on the modem" (solid light indicates that it has been synchronized); 2) It is recommended to check whether the network cable is connected well and whether the network card status is normal; 3) It is recommended to try to redial and plug in the wiring of the separator; 4) It is recommended not to connect the separator, and connect the bus directly to the modem to test whether it is normal; 5) It is recommended to restart the computer and modem before trying to dial up; 6) If none of the above methods can be solved: (1) Please log in to the online business hall (

If you report a broadband failure, a staff member will contact you to deal with it after it is successfully accepted. Thank you for your interest in telecom products and wish you a happy life. If the above information does not solve your problem, you can also log in to Guangdong Telecom mobile phone**(

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.

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.

The prompt of error 678 is generally that the network is not connected, and the conflict of various application software in the process of use will also cause the network to be unconnected, and the prompt of error 678 appears; The second is the ADSL broadband cat problem, error 678 can occur, and you can try to borrow an ADSL cat conditionally; The third is the network card or network card driver problem, update the network card driver to try; Fourth, the phenomenon of abnormal 678 prompts caused by antivirus software or firewalls. So, if you notice error 678, try to temporarily quit the antivirus software or turn off the firewall temporarily and re-establish a broadband connection to see if that solves the problem. If the problem persists, restart the computer; If the problem persists, reinstall the NIC driver.