Many individual users are still using fiber-optic dial-up or ADSL dial-up Internet access, but in the xp system dial-up prompt "678 error" network does not work, Windows Home Xiaobian will introduce you how to troubleshoot and fix 678 errors.
Error 678 Introduction
Error 678, the network is nowhere.
Error 678 occurs
In general, there are many reasons for error 678 error, such as: DSLAM equipment problem, equipment room board problem, handover box, trunk cable problem, user network cable problem, 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. Have you ever moved your computer recently? Especially the ADSL Modem connection, has the line been moved? Please check if the signal on the "cat" is flashing (cat is different, indicator light 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 corresponds to a Line, the connection method is the bus is the incoming line to the line port, the phone 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 try, so that the separator can be eliminated. If the pair is still flashing, check if the telephone line has a connector. If the line is not well contacted, the signal will not be fixed. (The telephone line has a problem with the crystal head or the line of the cat, and the line will not work.)
2. Confirm that the adsl modem dials normally, because the IP address automatically obtained by the NIC is not cleared. Therefore, when the NIC fails to obtain a new IP address, it will prompt 678. The operation method is: close the adsl modem, enter the control panel network connection and right click on the local Select to disable, after 5 seconds, right click on the local connection and select Enable, then open the adsl modem to dial;
3. If the first step is invalid, the local connection (network card) is still disabled when the adsl modem is turned off. , restart the computer, then enable the local connection (network card), then open the adsl modem to solve;
4, if the above steps can not be resolved, check whether the network card light is on, if the network card light is not bright, check the network card and network cable.
5, if the network card light is normal 1, 2 steps can not be solved, then uninstall the network card driver, reinstall the network card driver.
6, if the above operation is invalid, contact the telecommunications department to confirm the port.
7, there is a situation, if you have more than two computers in your home, the HUB port used to connect to the computer is damaged, there will be a "678 error", then you can replace a good port.
8, some after the telecommunications detection of the network is normal, there is also the error "678" prompt, then you should consider the conflicts of various application software in the process of use, it will also cause network failure. 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, when you have to, you can use the method of restarting the "cat" and the computer to solve it, see if it works.
The last method: call to find the operator's phone
Telecom: 10000
Unicom: 10010
Mobile (Tietong): 10086
Since Microsoft has withdrawn all support for Windows XP system, recently About windowsXP system is a sensitive topic, the 678 error in the broadband under WindowsXP system makes the user very nervous, I hope the content described above can help users solve this problem as soon as possible.