There is no broadband. Cat Network G flashes green light. Broadband connection error 651

How to solve the broadband 651 error.

651 In both cases, either your modem (or other connected device) has reported an error. The specified port was not found. Generally speaking, when the cat's light is on, the cat is good! It is recommended that you contact Unicom!

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 it is error 651, you can try this method, because the computer resource is used will be automatically disabled as the network adapter is used, and you only need to enable it again to access the Internet, the operation is as follows:

Start] -- Control Panel -- Hardware and Sound -- Devices and Printers (If it's Win7, users can directly enter [Modem] in [Start] -- Search for Programs or Files).

Then see the name of your computer username in the [Device] option in [Device and Printer], double-click to open it, and then select [Hardware] in the [General] and [Hardware] options to appear The [Device Function] of the machine will appear in the following menu type and click the [Network Adapter] option, and then you will see that the current device status is disabled, at this time, you only need to click [Change Settings] to enable the network adapter again. Users who need to dial up will be fine if they dial again.

If the LOS light on the optical modem turns red or flashes, it is generally faulty, as follows:

1. There is a problem with the optical interface of the optical modem, and the optical modem needs to be replaced.

2. The indoor pigtail connection optical cat connector is loose, and the connector can be restored by plugging it in;

3. The bending of the indoor part of the optical fiber is too large. Excessive bending of the optical fiber will affect the total reflection transmission of the optical signal in the optical fiber, as long as the optical fiber is straightened;

4. If the optical fiber of the outdoor part is broken or the optical port of the equipment in the computer room is faulty, it is necessary to report the broadband fault, and there will be staff to come to the door to troubleshoot the fault after the fault report.

There is a problem with the previous line from the cat, or there is a problem with the part of the connector of the wire crystal head, do you see that there is electricity? It is recommended to go directly to the operator

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.

Ask broadband customer service