The computer can t connect to the broadband, mine is Win7 system. The light on the computer network

651 refers to a modem error.

Specifically, the reason why you can't connect to the wire right now is because of a problem with your own computer. You can follow the steps below.

1. Check whether your local network card is enabled. If enabled, it will be the state shown in the following figure.

2. If you can't see this diagram or the local connection has been enabled, but the network port light is still not on. It should be that your network card driver is not installed or not installed. It is recommended that you reinstall the NIC driver once.

3. If it still doesn't work, it may be a problem with the network card or network cable interface, and it is recommended to send it for repair.

The "Error 651" displayed on broadband Internet access is mainly caused by the failure to connect the user's terminal computer with the Netcom central office equipment, which is generally divided into five situations: "network cable failure", "modem failure", "network card failure", "modem itself setting", and "network operator problem". Here's how to deal with such cases:

1. Please replug the network cable and ** cable and restart the modem test;

2. Please disable the local connection first, and then enable the local connection;

3. Please reinstall the NIC driver;

4. If you use a router, please remove it, and dial test it on a single computer.

If the problem is still not solved, you can contact the local customer service for feedback.

Your modem, that is, the "cat" The 4 lights on it are all on, if the fourth light is not on, then it's basically the cat is broken, hit **, you add broadband customer service, 90% of the cat has a problem.

I used to be all the things that were on.,**It's the same as yours.,It's just not connected.,Just go to Unicom and change a cat.。

You can contact your own ** business.

The network cable socket light is not on, first check whether the crystal head of the network cable is connected to the problem or the cat's thing, it is generally the problem of the crystal head, it is recommended that you change a network cable to try, not looking for me.

Check if your IP is automatically fetched if not, select Auto Fetch.

If you have any questions about broadband providers, it is recommended to contact them.

I also have the same problem, others are XP system on my network cable, which means that there is no problem with the line and network. It should be a w7 setup issue, right?

How to solve the broadband 651 error.

If error **651 occurs, it is recommended that you troubleshoot the problem from the following aspects:

1. Restart the modem and plug in the optical fiber connector.

2. Judge whether the status of the modem indicator is normal, if it is abnormal (the modem lights up red, the PON light flashes, and the indicator light is abnormal), you can call the local 10086 for broadband fault reporting;

3. Remove the router and directly connect to the optical modem to dial-up to connect to the Internet, if the dial-up connection fails, you can further feedback and deal with it through the broadband fault reporting center;

4. Reconfigure the router.

Replace the 2 ends of the network cable to connect, There are other network cables in your hand to change and try, if it doesn't work, it means that your interface is hanging. . .

I know this, haha:

Desktop --> right-click Network --> Properties --> Change adapter settings --> right-click Local Connection --> Properties.

Configuration -->Advanced Tab--> Properties, Point Connection Speed and Duplex Mode --> in"value", choose 10Mbps full duplex (my house is like this, customer service told me) - OK.

The "Error 651" displayed on broadband Internet access is mainly caused by the failure to connect the user's terminal computer with the Netcom central office equipment, which is generally divided into five situations: "network cable failure", "modem failure", "network card failure", "modem itself setting", and "network operator problem". Here's how to deal with such cases:

1. Please replug the network cable and ** cable and restart the modem test;

2. Please disable the local connection first, and then enable the local connection;

3. Please reinstall the NIC driver;

4. If you use a router, please remove it, and dial test it on a single computer.

If the problem is still not solved, you can contact the local customer service for feedback.

If you can't connect, the first may be that you did not enter the account authentication, and the second may be that you have the wrong connection, or try to redial

Broadband Internet display "error 651" is caused by modem damage, poor contact of network cable and network card, ** line obstruction, etc., and the treatment method is as follows:

1.If you have a router, power off and restart it first, if it still can't be used, please remove the router for the following operation detection;

2.Check if the modem signal light is OK:

1) If it is normal, please try to deal with it as follows: restart the network card, unplug the network cable, and restart the modem;

2) If it is not normal, please try to deal with it as follows: unplug the ** cable, restart the modem, check whether the splitter is connected correctly and unplug the above cable.

If the problem cannot be solved after the above simple troubleshooting, you can contact human customer service for processing.