error 678 introduction
Error 678, is a fault message that broadband adsl dial-up users often encounter, simply said the network is nowhere. Broadband adsl dial-up connection using pppoe protocol, data transmission through the telephone line, using adsl dedicated modem to achieve data modulation and demodulation, the error prompt 678 means that the remote computer is not responding, meaning to send instructions from the computer to the network card to send data Including the transmission of the telephone line, the port processing of the terminal board of the central office (the terminal of the telecommunications office) to the data transmission in the process of returning data to the computer will prompt.
678 error occurs because
Overall, there are many mistakes led to 678 reasons being given, as long as a link error, may arise from the DSLAM or less (including DSLAM) 678 error, such as: DSLAM Equipment Problems, machine room user board problems, transfer box below, trunk cable problems, wiring cable problems, user line problems, user terminal MODEM problems, user computer network card problems, user computer system problems, etc., may lead to error 678. The specific reasons for this kind of failure are not well judged, but after analysis, most of the cases can still be solved smoothly.
solution
1, your computer has recently moved in? Especially ADSL Modem connection, the line has moved in? Please check the "cat" is not on the lights will flash (different cat The indicators are also different, mainly dsl, adsl, line, link, @, etc. are broadband signal indicators), if you want to flash, check the line is not connected (mainly on the separator, there are three ports, each port Corresponding to one line, the connection method is that the bus is the incoming line and the line port, the telephone is connected to the phone port, and the modem or adsl is connected to the broadband cat. You can also directly connect the phone to the cat to test, so that the separator can be excluded. ), if the pair is still flashing, check if there is a connector on the telephone line, and the signal will not be ok if the line is not oxidized. (The telephone line has a problem with the crystal head or the line of the cat, and the line will be blocked.)
2. Confirm that the adsl modem dials normally, because the IP address automatically obtained by the network card is not cleared, so the network card cannot obtain a new IP address when prompted again. The operation method is: close the adsl modem and enter the network of the control panel. Connect right click local connection select disable, 5 After the bell right-click Local Area Connection Select Enable, and then open the adsl modem to dial;
3, if the first step is invalid, in the case closed adsl modem still disable the local connection (LAN), restart your computer , then enable local connection (NIC), and then open the adsl modem can be solved;
4, if the above steps do not solve the NIC to see whether the light is on, if the card does not light, check card and cable.
5, steps 1 and 2 if the card can not be solved normal lamp uninstall NIC driver, network card driver reloading.
6, if that does not work contact the telecommunications sector to confirm the port. I have encountered a "678" error when I was at home on the Internet. I couldn't check any problems at first. Later, I found that the port on the other side of the telecommunications bureau was loose, causing the line to be unreachable.
7, there is a situation, I have come across, if there are more than two computers in your home, damage to the computer used to access port HUB's words, "678 error" will occur, which It is ok to replace a good port.
8, after some telecommunications network to detect normal, there have been error message "678", then consider using a variety of software applications during the conflict, the network will also lead to nowhere. Such as "Yahoo small assistant", anti-virus software or firewall, etc., the phenomenon caused by the error "678". So, when you find the error "678", you can try to temporarily uninstall "Yahoo Assistant", quit the anti-virus software or temporarily turn off the firewall, re-connect, and try to solve the problem.
9, as a last resort, you can use restart approach "cat" and the computer to solve, see if you can work. The last method
: Phone call to find
telecommunications operators: 10000
Unicom: 10010
Mobile (CRC): 10086
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