The broadband connection always appears with error code 678

The remote computer is not responding; from the computer issued instructions to the network card to send data, including the transmission of telephone lines to the bureau (Telecommunications room end) terminal plate port of the uplink circuit; the port of the terminal Board of the Bureau End (Telecommunications room end) is processed to the data transfer problem in the downlink circuit of the computer. will prompt for 678 errors. In other words, the Internet is out of communication.

678 "Processing Steps and methods:

1, have you ever moved a cat's connection, line? Then check the "cat" on the lights will flash, if you want to flash, verify the wiring is correct, if the pair or flashing, check the phone line is not a joint, line oxidation contact is not good will cause signal instability

2, to ensure that the cat dial Normal, the network card will automatically obtain the IP did not clear, so when you dial again, the NIC can not get the new IP address will prompt 678; The method is: Close the cat, enter the control panel of the network connection right click the local connection select disable, 5 seconds after the right click on the local connection select Enable, and then turn on the cat dial;

3, if the first step is invalid, turn off the cat, still disable the local connection (network card), restart the computer, and then enable the local connection (network card), and then open the cat can be resolved;

4, the above steps are invalid, check the network card and network cable.

5, the network card lamp is normal, 1, 2 steps invalid, the uninstall network card drive, the reload network card drive.

6, if the above operation is invalid contact the Telecommunications department to confirm the port. To see if the telecommunications agency over there loose the port, resulting in the line is not pass.

7, multiple computers connected to a hub or network switches, routers, etc., when the public equipment access to the port damage, there will be "678 error", the replacement of good port can be.

8, sometimes although the telecommunications detection, the network situation is normal, there will still be a "678" hint, at this time to consider a variety of application software conflicts. such as "Yahoo Small assistant", anti-virus software or firewalls and other anomalies, triggering a "678" hint of the phenomenon. When you find the error "678" prompts, first uninstall the "Yahoo Small helper", quit the antivirus software or temporarily shut down the firewall, reconnect, to see if the problem is resolved.

9, the above method is invalid: Restart the "cat" and the computer, may be effective.