How to solve computer broadband connection error code 651

When many friends turn on the computer to connect to the broadband, the computer prompts error 651. What is the situation? The occurrence of 651 is caused by the failure of the connection between the user's terminal computer and the China Netcom central office equipment. It may be an external disconnection or equipment. If there is a problem, we can contact the operator to solve it, or check the device. Let’s take a look at the specific tutorial.

Detailed tutorial on solving computer broadband connection 651 error

Method 1: Network card driver failure

1. First consider the network card driver problem. This problem is relatively common. Right-click on the desktop computer ——Management, as shown in the figure below

2. Select "Device Manager" on the computer properties page to enter.

3. Find two network cards under "Network Adapter" on the Device Manager page, one wired and one wireless. Right-click on the wired network card - Disable! As shown in the picture below,

a prompt box will appear, click OK, and then right-click to start! Check if redialing is normal. If not, please read below.

4. Right-click the wired network card, select Uninstall, and uninstall the network card driver! As shown in the figure below

5. Click on the Device Manager menu operation— —Scan for hardware changes. The system will generally re-drive the network card with a universal driver. After the installation is complete, restart the computer! It should be OK

Method 2: Log file writing is prohibited

1. The path of the log file is C:\Windows\System32\LogFiles\WMI. If this folder does not have administrator rights, there will be problems with the broadband connection, and error prompts such as 651 or 711 will appear! First double-click Computer, enter the computer folder, enter C:\Windows\System32\LogFiles in the address bar and press Enter, as shown below:

2. Under the LOgFiles folder Find the WMI folder, then right-click - Properties, as shown below i! In fact, it is to let it obtain permanent administrator rights! My method does not require modifying the permissions every time the computer is restarted

3. On the WMI folder properties page, select the Security tab - click Advanced Settings. As shown in the figure below

4. On the WMI folder advanced properties page, select Permissions - Continue, as shown in the figure below;

5. On the WMI folder advanced page, select the account you are currently using, and then click the edit button, as shown below;

6. After entering In your account's WMI folder control options, check all options under Full Control, as shown in the figure below, and then click the OK button.

7. After the modification is completed, click the Apply button and select OK when prompted for the subsequent modification! Restart your computer after completing the modification

Method 3: Operator network adjustment

1. Contact your broadband network provider. Telecom users dial: 10000, China Unicom 10010, China Mobile 10086, go to manual service and call you directly Broadband connection error 651, they will find the problem immediately and reset it internally for you! If there is a line problem, they will also tell you when it will be fixed or when it will be repaired!

2. If you go to the previous step If it still can't be solved, it means there is a problem with the computer system! Please change a computer or restore the system.

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