The computer can t access the Internet, the local connection can be connected, but the broadband con

The process for handling broadband connection error 678 (remote computer not responding) is as follows:

Step 1: Check whether the modem signal is normal, and restart the modem if it is not. If it is normal, see step 2.

Step 2: Ask the user if they have any software such as a firewall or 3721 Internet Assistant, and if so, suggest that the user log out.

1) Firewall and 3721 Internet assistant post-test: if the fault is solved, the cause of the fault is "user software problem";

2) If the fault still exists, enter the next step to continue processing;

Step 3: Instruct the user to check the NIC status and unplug the network cable

1) If the fault is solved, fill in: the cause of the fault is "PC hardware problem";

2) If the fault still exists, enter the next step to continue processing;

Step 4: If the conditions are met (the user has dial-up software, install the CD (win98 should have a network card driver), it is recommended that the user delete the dial-up software and, and then reinstall the network card driver and install the dial-up software

1) If the fault is solved, fill in: the fault symptom is "dial-up connection timeout", and the fault cause is "PC hardware problem";

2) If the fault still exists, enter step 7 to continue processing.

Step 5: Determine whether the ** line behind the modem is available and whether the splitter is connected correctly

1) If the modem can not be used, and the other ** of the billing number can be used, it is recommended to replace the ** line, and the cause of the failure is "the user's indoor line failure";

2) If all ** of the user's home billing number cannot be used, please call customer service **10000 Telecom (10060 Netcom 10050 Tietong) to report the obstacle. Step 6: If the above processing is invalid or the user cannot do simple cooperation operations, please call customer service **10000 Telecom (10060 Netcom 10050 Tietong) to report the obstacle.

First of all, check the status of the modem ADSL signal light, if the ADSL-Link light flashes (depending on the modem brand, some are DSL, some are WAN, etc.), check whether the buzz is normal (ADSL special line, under normal circumstances, there is electricity (-48V) without bee), if there is no buzzer (no voltage), it means that the line is faulty, call the operator's customer service**, and report the fault; If there is noise, check the connection sequence of the isolation box to ensure that all the phones, including the extension, are drawn from the phone port of the isolation box. Restart the modem and try again, if it still doesn't work, call the operator's customer service** and report the fault; If the modem adsl-link lamp is always on but the PC lamp or LAN-Link lamp is not on, check whether the network cable connected between the modem and the PC NIC is plugged in and whether the NIC is working properly. If all the lights are working properly in the modem, first look at how many network connections there are in the system.

The XP system can be viewed by right-clicking on the desktop and selecting "Properties". Vista and Win7 systems are viewed in the Network and Sharing Center. If there are multiple network connections in the computer at the same time, such as "Local Connection", "Wi-Fi Connection", "1394 Connection", Bluetooth Connection, etc., and the network connection connected to the broadband modem is disabled, error 678 will also be displayed when making broadband dial-up.

Check whether the broadband modem is connected to a wired NIC and check whether the local connection is disabled. If disabled, enable the local connection and prompt that the local connection is connected, then try the broadband dial-up connection.

If there is only one local connection on the computer, you can try to reset the modem, if the broadband connection still has error 678 after resetting the modem, you can change the local IP to modem with the network segment IP, if the modem management IP is then set the local connection IP to (x between 2 and 254), ping under the DOS window, if prompted request timed outUsually, the user's NIC does not have a normal driver, or it is faulty. Also, if the system is equipped with firewall software, check the firewall rules to see if the network connection is blocked.

If the ping modem is enabled and the modem signal is normal, the fault point is at the local end or above link. Call your carrier** to report the fault.

There are many situations, first of all, please check whether your network fee is in arrears, if not, please check whether your network port is good (check whether the network port indicator is yellow and green), if not, please check whether your network number has been tampered with (call customer service** for inquiry). If not, please check whether there is a problem with your network adapter (right-click on the properties of my computer to see if the network adapter of the computer device is fully configured), if there is a problem, there is a driver where others have a network. Basically, these are these problems, even if it is a virus, it is estimated that it is a destruction of the driver.

The local connection is connected, but the broadband connection is not.

It's possible that the local connection is just looking at the connection. In fact, it was not connected for some reason, such as a problem with the cable, such as poor contact. For the specific situation, look at the error, there should be a hint.

There may be arrears and the operation of the network service will be interrupted.

There may also be a problem with the network card, you can check the driver again, check every detail, you really can't figure it out, you can find the operator to consult or door-to-door service.

The local connection is normal, it can only mean that the network card of the computer has been inserted into the network cable normally, the broadband connection is just a network connection program, and the local connection is not normal, you will be able to access the Internet, if the broadband connection is not connected, first check whether the broadband and password are correct, there is no problem, check whether the IP address and DNS settings of the local connection are configured correctly, try to set it to automatically get it, if it still can't solve the problem, delete the current broadband connection, rebuild the broadband connection and try, it can't solve the problem, It should be a network problem, and you should consult the network operator to solve it.

Do you use a router or a local area network? What do you want to do with a local connection? If you use broadband to access the Internet, the local connection can't be connected If you can't connect to the Internet with a route, then you need to check and check 1

Right-click the local connection attribute Network Internet Protocol attribute, and the upper and lower points are automatically obtained; 2.Right-click on my computer Properties Hardware Device Manager to see if there is a yellow question mark before the network card option, and if so, reinstall the network card driver to try.

First of all, see if your other network devices can access the Internet, determine if it is a router problem, and then restart all devices according to whether the light flashing of your home broadband optical modem is normal, if it still doesn't work, you can report broadband repair.

Re-establish the ADSL connection.

Select Start, Programs, Attachments, Communications, New Connection Wizard, Open Welcome to New Connection Wizard interface, Next, enter the name used in the Username text box, enter the password in the Password text box, Repeat the password in the Confirm Password text box, check Any user who connects to the Internet from this computer to use this account name and password and make it the default Internet connection—Next, check Add a shortcut to this connection on my desktop— When you're done, you'll see an extra connection icon on your desktop with the name ADSL.

With the development of the Internet, more and more Chinese households are surfing the Internet.

It may be a problem on the operator's side.

The local connection of the computer is connected, which means that the computer and the router are connected. However, the computer and broadband connection are not available, which means that the computer is not logged in to the network, so you need to log in to your own network.

All settings on the router are normal, but the web page cannot be opened. You can delete the network card in your computer and reinstall the network card driver, and you can solve the problem.