Error 651 – Methods To Fix it in Windows 7/8

If you are using windows for a while, you might came across the Error 651. Many of our users who works online reported that they are getting Error code 651 frequently.

So, we decided to provide some solutions for this error that are very well worked for many of our visitors. We gathered these informations from trusted sources that to provide the most relevant solution to fix the problem.

Coming directly to the matter,  Error code 651 usually occurs when users trying to connect their computer to the internet using the modem or a router.

It will show an error message while trying to connect to the internet using the modem or router. The error message usually looks like “Connection failed with error 651”.

While the error occurs, as in any other errors users will try restarting their computer many times and will be panic to fix the Error code 651 as soon as possible. There is no need to be worried about the error, and it is very easy to fix it if you carefully follow the below methods.

How to Fix Error 651 in Windows 7/8

There are no official fixes for the error. But, you could try many methods to have this problem fixed in your windows 7 or windows 8 PCs. Below are the methods to fix the problem on your Windows 7 or 8 operating systems with ease.

Note: Downloading and installing the PC optimizing softwares like Total System Care (A good software to fix this kind of problems) may give you a quick solution rather than going to the little tougher methods given below. So, download and install the software and give a try to fix the problem using it.

Download Total System Care

1. Uninstall Modem

Uninstalling your modem and Reinstalling it may solve the problem. Many of our users reported that this method worked for them to fix the problem. You can uninstall your Modem either by the Uninstall programs method (If it has a software installed) or through Device Manager in Computer Management window which can be accessed by right-clicking the Computer icon on your desktop.

2. Replace RASPPPSE.SYS From Windows Drivers Directory

Many of our users reported that, they have fixed the error by replacing raspppse.sys file in windows 7/8 drivers directory.

The method is working for all windows 7 and windows 8 users who are facing this issue.

3. Disable IPV6 of the Internet Connection

One of the easiest method to solve this error is disabling the IPV6 of the modem. Many of our visitors confirmed this as working for them. To do this, Right click on the Connection that you have currently connected to the internet, Select Properties option and Uncheck the box which says Internet Protocol Version 6 (TCP/IPv6). Now, check if the problem is fixed or not.

5. Disable Windows Auto-Tuning Feature

If you are using a router to connect to the internet, disabling the Windows Auto-Tuning feature may help you to fix the problem. To Disable Auto tuning feature in windows follow the below steps.

  • Run command prompt as administrator.
  • Type this command (without quotes) in the CMD and Press Enter

“Netsh interface tcp set global autotuning=disabled”

6. Reinstall Lan Card Drivers

Reinstalling the LAN card drivers is also an option that you can try to fix Connection Error 651 problem. As there are chances that the corrupted drivers may be causing the issue, reinstalling the Lan card drivers may help.

7. Perform a Clean Boot

Perform a Clean Boot to start your windows in a cleaner and a safer way without loading those programs that may be causing the issue. This method is not that much effective, but may work sometimes.

8. Recreate Dialer and Restart your Modem

There are possibilities that your Dialer is creating conflicts by not responding to the connection. Removing the Dialer and recreating a new one may help you to fix the problem. After the process, be sure to restart you computer and the modem.

How to Avoid ERROR 651 in Future?

If any one of the above methods helped you to fix the error and if you wanted to prevent such nasty errors during the internet connections or other such situations, we recommend you to use some PC Optimizer tools like Total System Care. These type of programs will keep your windows clean as they are able to fix the registry errors and the common windows 7/8 problems. They can be also used before trying any of the above methods to fix the problem.

So, we hope, the above methods helped you to Solve the Error code 651 in windows . If you are facing this problem in your windows 7 Pc, any of the above methods will surely work for you. In windows 8, some of them are not working as per the replies of our readers.

If you are facing the error still now, don’t forget to leave us comments regarding the same. Be sure to clarify the problem you are facing with the screenshots if needed. We will be happy to serve you and will reply as soon as possible.

Muhammed Swalih is a Blogger by profession who also has a great taste in Web Development, SEO, Graphic Designing, etc.
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