What is the reason that the broadband connection is not working and the error 678 is displayed? How

Belle! Check if the cat is waiting for one of the lights to be fully lit before it is normal! It's a line fault!

Connection error! Or you swap the connector on the small rectangular tap of the split** and broadband line to it, and dial it in! It's just that the two plugs are tapped, and the one end is not moved.

If it doesn't work, it's a network cable, try a different one!

A general workaround for error "678".

1.Check whether the second link light of the modem is always on, if the link is always on, you can determine that there is no problem with the line, at this time, check whether there is a problem with the computer network card, such as the network card failure, please replace it directly; In addition, if the modem works for a long time, it will also cause this phenomenon to be caused by the heating of the internal electronic components, and restarting the modem and the computer can usually solve the problem.

2.If the link light is not on, check the indoor wiring. First of all, dial ** to see if it is normal, if it is normal, please check whether the wiring of the separator is correct or whether the wiring is loose, as well as the connecting wires of the modem, computer network cables, etc.; If you can't get through, or you can't solve it yourself, please call your broadband service provider directly and ask for assistance.

There are two points, 1: your cat has a problem 2: your line has a problem, the solution to problem 2 is to turn off the cat, wipe off all the connection wires, and then open it, it is generally solved, no can only find your service provider.

Broadband Internet display "error 678", it is due to modem damage, network cable, network card 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 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 splitter is connected correctly and unplug the above cable.

The prompt of the error "678" for Internet users is generally that the network is not available, but some of the network conditions are normal after being detected by telecommunications, and the error "678" prompt also appears, which is annoying.

In fact, the conflict of various application software in the process of use will also cause the network to be unconnected, and the error "678" prompt appears. During routine maintenance, telecom maintenance personnel have found that "3721", anti-virus software, or firewalls have abnormal errors that cause the error "678" prompt. So, if you find the error "678", you can try to temporarily uninstall "3721", quit the antivirus software, or temporarily turn off the firewall and reconnect to see if that solves the problem.

The dial-up connection cannot be reached, and the message "Error 678" is displayed.

This prompt indicates that there is indeed a fault in the network. The possible causes are: interruption of the transmission line provided by the operator, power failure or damage to the equipment on the upper level of the operator, or interference due to poor line quality.

Once this prompt appears, you can first check whether the network cable behind the network card of the machine is connected, whether the network card light is on (bright means that the previous layer of equipment has not stopped spring shielding power), if there is no problem, call the operator's ** request to repair it.

In addition, when this problem occurs, check whether the firewall is installed on the computer, and sometimes this error is prompted when dialing is due to the firewall software prohibiting the network access of the dial-up process. At this time, you turn off the firewall and try again, if you can dial normally when you turn it off, that's right, that's the problem: "Error 678???."

The meaning is: the internal command prompt information of the system, and the error is reported with a specific problem in the event of an error or conflict. Usually the request information from the local computer can be sent to the network, but it does not receive a response from the server on the network.

The solution is: re-establish a dial-up connection; If the problem persists, restart the computer; If it still doesn't work, reinstall the network card.

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 the segment is normal, please try to restart the network card grip, 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 splitter is connected correctly and unplug the above cable.

2. If it cannot be solved, you can contact the local customer service of Wuzi to give feedback on the situation.

If only 1 and 4 are bright, please check the separator you use, whether it is plugged in the opposite direction, the outer line starts with L, ** starts with P, and the cat starts with A or M, if it is connected well, it may be a problem with the outside line, and the possibility of the cat is too small.

Whether your local connection IP is automatic or fixed.

Automatic. Turn off mode.。。 The local connection will reacquire a new IP.

Fixed words. Turn off mode.。。 The local connection will be very fast.

678 Some are local connections before getting the IP. Dials are all 678...