How to solve the problem of computer broadband connection error 678

How to get computer broadband connection error 678

Broadband connection displays error 678, which means that when using ADSL dial-up, the local computer sends a service request to the terminal server through the network card, but due to problems with the network line or computer hardware, the terminal server cannot receive or return the request data. When When the local computer cannot receive the return information, it will prompt the code information of error 678.

678Solution:

1. Check whether the account number and password of the broadband connection are correct. Some computers use routers to access the Internet without setting up automatic dialing and need to manually connect to the network. Or when connecting to broadband for the first time, they accidentally enter the wrong account and password. Reconnecting after timely correction can generally solve the problem of error 678.

2. If the broadband is in arrears, the terminal server will be unable to receive or return the request data, and the local computer will not receive the return information, and error 678 will be displayed. At this time, pay the Internet fee in time and the problem will be solved.

3. Problems with the modem (referred to as "cat") are the most common cause of error 678. First check whether the Power indicator light on the cat panel is always on, otherwise check the power supply. Then check the ADSL broadband signal

Is the

indicator light (Link) always on? Under normal circumstances, when the cat is connected to the power and network, the indicator light will change from flashing to solid within 1 minute. If it keeps flashing, it means there is a problem with the network line connection.

4. Check the network cable connector. Sometimes the network cable connector will have poor contact due to oxidation, causing the network to be good and bad, and very unstable. At this time, it is necessary to replace the network cable with a new and good quality one in time.

5. After checking, if the modem ("cat") signal lights are normal and the network cable connection is normal, but error 678 code still appears, you should focus on checking the local network card settings. XP system shuts down first

Modem power supply, right-click Network Neighborhood, right-click the Local Area Connection icon, and select Disable; for VISTA and WIN7 systems, open the Network and Sharing Center, click Change Adapter Settings, right-click Local Area Connection, and select

Choose to disable. Then restart the computer. After the restart is complete, right-click the local area connection icon according to the above steps and select Enable.

6. Check the local connection. If there are multiple network connections in the computer at the same time, such as "local connection", "wireless network connection", CMCC connection, etc., and the network connection connected to the broadband MODEM is disabled, perform broadband

When dialing, error 678 will also be prompted. Therefore, when error 678 occurs, you should also check whether the local connection is disabled. If it is disabled, enable the local connection and prompt that the local connection is connected, and then try to connect using broadband dial-up

catch. Note that each operating system is different when checking the network connection. For XP systems, you can right-click the mouse on the computer desktop and select "Properties" to view it. Check VISTA and WIN7 systems in the Network and Sharing Center.

What’s wrong with error code 676 in computer broadband

1,

(1) First, restart MODEM, which will usually return to normal. If it still doesn’t work, it is recommended to restart the computer;

(2). You can test it by redialing ADSL multiple times;

Note: Automatic redialing can be achieved in the "Options" of the connection properties

2. You can reset the MODEM (usually there is a reset button on the MODEM), and it is recommended that the user check the connection and restart the computer;

3. Run the following two commands ipconfig /renew and ipconfig /release on the command line to release the IP address in this way;

In the properties of Network Neighborhood, right-click the properties of the broadband connection. On the network page, enter the properties of TCP/IP, click Use the following IP address, then enter any one, do not write other addresses, and then confirm , exit and dial again, another error will be prompted. Anyway, it is not 676. Then go back to the TCP/IP just now, click to automatically obtain an IP address, confirm and exit, and dial again to connect.

The main principle is to clear the original erroneous IP.

I keep getting error 678 on my network connection. But why do you just need to try a few times?

Broadband adsl dial-up Internet users often encounter the "Error 678" fault prompt:

The Internet has always been normal, but one day it suddenly became unavailable, and prompts such as "Error 678" appeared during dial-up connection. Most users are helpless about this kind of failure, and some even wonder if their passwords have been stolen? Generally speaking, it is not easy to judge the specific cause of this kind of failure, but after analysis, in most cases it can be solved smoothly. The reasons and solutions for this failure are explained below:

1. What does "Error 678" mean?

Broadband adsl dial-up Internet access uses pppoe protocol connection, transmits data through telephone lines, and uses adsl dedicated modem to realize data modulation and demodulation. The meaning of error message 678 is: the remote computer does not respond, which means that the computer sends instructions to the network card. When sending data externally, including the transmission of telephone lines, the port processing of the terminal board at the central office (telecommunications office computer room) and the process of returning data to the computer will prompt a 678 error if there is a data transmission problem. Simply put, the network is down.

2. Common solutions and steps for users when encountering "Error 678":

1. Has your computer been touched recently? In particular, have the ADSL Modem connections and lines been changed? Please first check whether the signal light on the "cat" flashes (different cats have different indicator lights, mainly DSL, adsl, line, link, @, etc. are all broadband signal indicators). If it flashes, check whether the line is connected. Yes (mainly on the splitter, there are three ports, each port corresponds to a line. The connection method is the bus, which is the incoming line port, the telephone port is connected to the phone port, and the modem or adsl is connected to the broadband modem. You can also directly connect Try connecting the telephone line to the cat (this can rule out a bad separator). If the connection is correct and it still flashes, check whether the telephone line has a connector. If the line is oxidized and the contact is not good, the signal will be unstable (the crystal of the telephone line entering the cat If there is a problem with the header or line, it will also cause the line to be blocked.)

2. Confirm that adsl modem dial-up is normal. Because the IP automatically obtained by the network card has not been cleared, so when dialing again, the network card cannot obtain a new IP address and will prompt 678. The operation method is: close adsl modem and enter the network connection of the control panel. Right-click the local connection and select disable. After 5 seconds, right-click the local connection and select enable, then open the adsl modem and dial up;

3. If the first step is invalid, when the adsl modem is turned off, the local connection (network card) is still disabled, restart the computer, then enable the local connection (network card), and then open the adsl modem to solve the problem;

4. If the above steps cannot solve the problem, check whether the network card light is on. If the network card light is not on, check the network card and network cable.

5. If the network card light is normal and cannot be solved in steps 1 and 2, uninstall the network card driver and reinstall the network card 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. At first, I couldn't find any problems. Later, I found that the port at the telecommunications office was loose, causing the line to be blocked.

7. There is another situation that the author has encountered. If you have more than two computers at home, and the HUB port used to connect the computers is damaged, a "678 error" will also occur. In this case, replace one. A good port will do.

8. Some network conditions are normal after being tested by telecommunications, but error "678" prompts also appear. At this time, conflicts with various application software during use must be considered, which will also cause network failure. For example, an abnormality in "Yahoo Assistant", anti-virus software or firewall may cause an error "678". Therefore, when you find the error "678" prompt, you can first try to temporarily uninstall "Yahoo Assistant", exit the anti-virus software, or temporarily turn off the firewall, reconnect, and try to see if the problem can be solved.

9. As a last resort, you can solve the problem by restarting the "cat" and the computer to see if it works

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