How to solve computer broadband connection error 651

How to solve computer broadband connection 651 error

In modern society, whether working or studying, computers and broadband have become an indispensable part of our lives. However, when using computers to connect to broadband, sometimes we may encounter various problems. One of them is "Error 651". When we encounter this error, how do we solve it? Below I will introduce some methods to solve the 651 error.

First of all, we need to make it clear that the 651 error usually refers to the connection problem between the computer and the broadband. Before we can fix the problem, we need to make sure both the computer and the broadband line are working properly. We can confirm this by trying other devices or contacting the network provider. Once we have confirmed that the problem lies with the computer and broadband connection, we can take the following methods to solve the 651 error.

Method 1: Check the broadband line
When solving the 651 error, first we need to check whether the broadband line is connected properly. We can check whether the connection between the computer and the broadband modem is loose. If it is loose, we can replug and unplug it to fix it. In addition, we can also check whether the network cable is damaged. If damage is found, we can replace the network cable with a new one to solve the problem.

Method 2: Restart the computer and broadband device
Sometimes, restarting the computer and broadband device can solve the 651 error. We can turn off computers and broadband devices first, then wait for a while and then turn them back on. By restarting the device, possible temporary errors can be cleared so that the connection between the computer and the broadband can be reestablished.

Method 3: Check the network driver
The network driver is the communication bridge between the computer and the broadband device. If there is a problem with the network driver, it will cause the 651 error. At this point, we can check and repair the network driver by following the steps below.

First, we need to open the device manager of the computer. In the Device Manager we can find the Network Adapter option. We can uninstall the network driver by right-clicking on the network adapter and selecting the "Uninstall Device" option.

After the uninstallation is completed, we can click the "Action" menu and select "Scan for Hardware Changes" to reinstall the network driver. The system will automatically search for and install the adapter driver.

Method 4: Disable IPSec service
Finally, if the above method still cannot solve the 651 error, we can try to disable the IPSec service. The IPSec service is a network security protocol that may sometimes interfere with your computer's connection to your broadband.

We can press the Win R key to open the run dialog box, and then enter "services.msc" to open the service manager. In the service manager, we need to find the service named "IPSec Service" or "Internet Protocol Security", right-click and select "Properties".

In the properties window, we can select the "Stop" button to stop the service and change the startup type to "Disabled". Once done, we can click OK to save the changes.

Through the above methods, we can try to solve the 651 error. Of course, because personal computers and network environments vary, the methods for solving problems may also vary. If none of the above methods can solve the problem, we can consider contacting the network provider or professional technicians for help.

To summarize, when we encounter a 651 error when using a computer to connect to broadband, we first need to confirm that the problem lies in the computer and broadband connection. Then we can try to check the broadband line, restart the computer and broadband equipment, check and Fix the network driver and disable the IPSec service to solve the problem. I hope the above methods can help friends who encounter 651 errors and make our network connection smoother.

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