Internet connection failure with error 651

Connection failure with error 651 may indicate a problem with both your system and the Internet provider providing the service. All network equipment that is located on your territory, and this is a network cable, network card, router, etc., may not work properly, so you should, first of all, independently examine all possible reasons for the lack of connection and only after that make a call to the service provider support. Five ways to resolve error 651

The first method is to restart the computer

In case of sudden voltage changes or any other reasons, the network card does not work correctly and this leads to a failure of the computer’s connection to the network. In order to eliminate this error, just click “Options” and “Restart”.



The second method is to update the network card drivers

To do this, right-click on “My Computer,” select “Properties,” and click “Device Manager.” A window will open where we should find “Network adapters”, and then click on the triangle located to the left of the inscription to check whether all network adapters are working.



Updating drivers is necessary if the yellow triangle next to any adapter is lit.



To update the adapter, right-click on the problematic adapter from the list and click “Update”.



The third method is to eliminate problems with the network cable

Two possible cable problems:
- physical damage and impulses;
- poor interaction between the cable contacts and the network card.
We check and restart the computer.

The fourth method is a new Internet connection

All equipment is prone to failures and connecting a computer to the Internet is no exception. Let's try to create a reconnection ourselves.

Right-click on the network icon and select “Network and Sharing Center”



In the next window, select “Create and configure a new connection or network.”



Next, select “Internet Connection/High-Speed”.
In the window, enter the already known data about the provider and contract number.



We check.

Fifth method - changing the registry value

We search for “regedit”. Opening system registry.



Further in the tree on the left we move sequentially along the path HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters



Click on the “Parameters” folder on the left. At this point, a list should appear on the right.
Right-click on this field where the list is located and see “Create”. Select the “DWORD (32 bits)” parameter.



The parameter will be called “Enable RSS”, and its value will be “0”.
We create a DWORD (32 bits) in the same way. We call it “DisableTaskOffload” and assign it the value “1”.
Reboot the computer.
Let's check the result. Most often, the problem of connecting to the Internet with error 651 is solved by restarting the computer and checking the connection of the network cable to the network card. If all these manipulations do not give the desired result, then you should contact your Internet provider.