What should I do if the broadband DSL interface fails to connect to line if it is connected to line?

If your 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 and 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.

Reinstall the driver, and then make sure that the password entered is correct.

The WAN interface of the router is an RJ45 interface, which is different from the ** line interface of DSL, so it cannot be used directly, and the correct connection method is:

1. The DSL** line is connected to the LINE** line interface of the modem;

2. The modem RJ45 interface can be connected to the WAN of the router through a twisted pair;

3. The host is connected to the router LAN interface;

4. Then the host logs in to the router configuration page to configure the access information.

2650BU is a wireless broadband modem customized by DLINK for telecommunications, this setting is quite different from ordinary router settings, the process is very complicated, it is recommended that the landlord send Q to us remotely.

You are using win7 operating system, 651 appears, there are 3 reasons, 1, the network card driver is damaged, 2, ADSL has a problem, 3, the modem plug is loose or the operator switch is the reason. Your DSL light is flashing, indicating that the modem has not yet established a connection to the central office physical layer. You can unplug the ADSL and plug it back in.

If you can't connect, rebuild your broadband connection. If you can't do it with the above operations, it's because of the switch. Contact your carrier immediately and ask them to take care of it.

Cat or outside line failure. Please report for repair.

One is the line problem.

The second is that the voltage there is unstable.

The third is the problem of network card.

Fourth, you bring a local connection there to see if there is a setting.

If you still don't have it, call the master to change the line and die for you.

Hope it helps.

My broadband is also, I personally think that the line problem of the Netcom company, but I have complained more than 20 times, and now it has been almost 2 months, and no one has given me a complete solution, I am looking for a lawyer to prepare to solve this problem from a legal point of view, if there is really no one to repair or repair it badly, at least I want to let Netcom refund my broadband fee, because I paid the fee for 3 years at a time, and it has only been used for a year,

1.Check and kill the disease and defend the poison (it is also possible to change the battery and hold the brain).

2.Try it directly online without going through the router.

3.Change the cat (to the Unicom Jane**).