What about a broadband connection 678? Broadband connection is not available

678 is off the network, I often encounter this problem, there is a very simple solution is to cut off the power restart If you still can't find a service repairman to check the line.

Delete the broadband connection, create a new one, and you're good to go.

If I'm not mistaken, 678 is a line problem, a problem from the service provider, call the service provider ** to ask.

1. The error **678 displayed when logging in is usually caused by a line problem, and you can try to recover it as follows:

2. Restart the modem and plug the optical fiber connector back in before surfing the Internet macro seepage file test;

3. Judge the status of the optical modem, such as whether the WAN indicator is solid or flashing when the port is connected to the modem normally;

4. Remove the router caller, create a broadband connection, and reconfigure the router;

5. If the above methods still cannot solve the problem, you can call the local 10086 to report the broadband fault.

You first restart in Clear Junk Files to try.

Look at the back of the head, the network card display light is not on. I have a problem +++ me.

The display of light drops and two bright lights indicate that it is not the telecommunications bureau that your computer is compressed. Can't tell+++ me.

Turn off the cat and the computer together, restart it after 5 minutes, if it doesn't work, try a different network cable.

That doesn't necessarily depend on what it is prompting! If it prompts automatic offline and a few blind touches, it may be poisoned!

Prompt: Brush to talk about the new no IP or no signal or something, that's Netcom! There is also the option of connecting with a lenient loan.

But the omen will be disconnected in a few minutes, then you should restore the system first, don't kill it, then it's useless at that time! I'm looking for Netcom.

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 separator 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.

1. Definition of Dialing Error:

Error 678 is one of the faults of broadband. The implication is that the remote computer is unresponsive. To put it simply, it is a network impassable macro.

Broadband dial-up Internet access uses PPPOE protocol connection, the meaning of error prompt 678 is, the remote computer is not responding, which means that the computer sends instructions to the network card to send data outward, including the transmission of network cables, and the port of the terminal board of the central office (computer room end) processes the data transmission problems in the process of returning data to the computer.

2. Common reasons:

There are many reasons for error 678, such as: equipment problems in the computer room, backbone cable problems, wiring cable problems, user network cable problems, user computer network card problems, user computer system problems, etc., which may lead to error 678. Another reason is that if you use a router, you usually don't need to use a broadband connection anymore, and if you use it again, you will get a 678 error.

3. Solution:

1. Please confirm whether you are using a router, if you are using a router, the dialing operation is completed by the router, and there is no need to manually dial the number on the computer;

2. Please confirm whether there are any software restrictions such as firewalls or other Internet assistants, and if so, it is recommended that you log out and then try to dial up;

3. Please check whether the network card light is flashing, check whether the crystal head is plugged in, and push the network cable inward for testing;

4. Please deactivate the local connection after deactivation, and then re-connect the broadband connection, the specific method: right-click the desktop network neighbor, select Properties, right-click the local connection in the new pop-up window, select Deactivate, and then right-click the local connection later, select Enable, if the dial is still prompted 678, you can call the customer service to contact the engineer to check;

Note: Try not to re-plug the Ethernet cable more than once, as re-inserting the Ethernet cable multiple times may damage the crystal head.

If you use China Unicom Broadband error message 678, it means that you cannot connect to the remote computer. It is recommended to check whether the network connection in the room is normal and whether the network card light is on. If the fault is still not restored, you can report the fault according to the following prompts:

1. Has your computer been touched recently? In particular, have the ADSL modem wiring and lines been moved? Please check whether the signal light on the "cat" will flash (the cat is different, the indicator light is also different, mainly dsl, adsl, line, link, @等都是宽带信号指示灯), if you want to flash, check whether the line is connected to the pair (mainly on the separator, there are three ports, each port corresponds to a line, the connection method is the bus is the incoming line port, ** machine connected to the phone port, in addition to modem or adsl connected to the broadband cat, you can also directly connect the ** incoming line on the cat to try, This can rule out the bad separator), if the connection is still flashing, check whether the line has a joint, and the signal will not be stable if the line oxidation contact is not good (the crystal head or line of the line into the cat has a problem, which will also cause the line to be blocked.

2. Confirm that ADSL modem dialing is normal, because the IP automatically obtained by the network card is not cleared, so when dialing again, the network card can not get a new IP address will prompt 678, the operation method is: turn off ADSL modem, enter the network connection of the control panel, right-click the local connection and select disable, after 5 seconds, right-click the local connection to select enable, and then turn on the adsl modem dial-up;

3. If the first step is invalid, then in the case of turning off ADSL MODEM, still disable the local connection (network imitation lifting card), restart the computer, then enable the local connection (network card), and then turn on ADSL MODEM to solve the problem;

4. If the above steps cannot be solved, check whether the NIC light is on, if the NIC light is not on, check the NIC and network cable.

5. If the NIC light is normal, step 1 and 2 cannot be solved, uninstall the NIC driver and reinstall the NIC driver.

6. If the above operation is invalid, contact the telecommunications department to confirm the port. The author also encountered the "678" error when surfing the Internet at home, and at first I couldn't check any problems, but later found that the port on the side of the telecommunications bureau was loose, resulting in the line not working.

7. There is another situation, the author has also encountered that if you have more than two computers at home, and the hub port used to connect to the computer is damaged, there will also be a "678 error", so you can replace a good port.

8. Some of the network conditions are normal after telecom testing, and there is also a prompt of the error "678", at this time, it is necessary to consider the conflict of various rolling application software in the use process, which will also cause the network to be unconnected. For example, "Yahoo Assistant", anti-virus software, or firewall have abnormal errors that cause the error "678". So, if you find the error "678", you can try to temporarily uninstall Yahoo Assistant, exit the antivirus software, or temporarily turn off the firewall and reconnect to see if that solves the problem.

9. As a last resort, you can use the method of restarting the "cat" and the computer to see if it works.

I recommend using a router myself, and since I used the router, I have never had this annoying situation of preparing a bizoe.