Win7 and XP are not connected to broadband error codes 651 and 678, the cat is good, maybe the compu

The "Error 651" displayed on broadband Internet access is mainly caused by the failure to connect the user's terminal computer with the Netcom central office equipment, which is generally divided into five situations: "network cable failure", "modem failure", "network card failure", "modem itself setting", and "network operator problem". Here's how to deal with such cases:

1. Please replug the network cable and ** cable and restart the modem test;

2. Please disable the local connection first, and then enable the local connection;

3. Please reinstall the NIC driver;

4. If you use a router, please remove it, and dial test it on a single computer.

Broadband Internet display "error 678", it is due to modem damage, network card, network cable poor contact, ** line obstruction and other reasons, 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, 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.

If you have not solved the problem after excluding the above situations, you can log in to the online business hall of China Unicom, click "Broadband", "Broadband> "Broadband Service> "Broadband Fault Report" > "** Fault Report" on the home page to report the fault. The above path is subject to the actual information displayed on the query page.

Broadband error 678, it has nothing to do with yourself, you remember that as long as the broadband error 678, you will find your network provider (Telecom, Unicom), the error dialog box is very clear, it is the remote computer does not respond, that is to say, your computer can not connect to the telecommunications (or Unicom) computer room, call customer service**, let them solve it quickly. Generally, the customer service will restart it for you in the background.

It's not 651 every time, is it 691 or 718 sometimes? It's probably the password problem, and if you change the password, it's possible that someone else has stolen it

Are you dialing 2 computers together? . . It is possible that you may not be able to dial at the same time...

If the system is fine, connect a few more times and restart.

I came across it yesterday, didn't pay much attention to it, and was fine with myself.

Fix the network protocol.

If there is no problem with the network cable in the house, see if the cable from your cat to the computer is open, whether the crystal head is broken, and then see if your network card is disabled If you have changed the network card, it is most likely a problem with the network card, and there may be a problem with your IP processing You can't access the server.

The "Error 651" displayed on broadband Internet access is mainly caused by the failure to connect the user's terminal computer with the Netcom central office equipment, which is generally divided into five situations: "network cable failure", "modem failure", "network card failure", "modem itself setting", and "network operator problem". Here's how to deal with such cases:

1. Please replug the network cable and ** cable and restart the modem test;

2. Please disable the local connection first, and then enable the local connection;

3. Please reinstall the NIC driver;

4. If you use a router, please remove it, and dial test it on a single computer.