How To Fix Error 651 in Windows 7/8/10 [8 Methods]

If you are a windows user then it is possible that you have Face Error 651 Anytime. There are many windows user who get affected by this error code 651 while working online.

If you are one of those windows user, then keep reading this article
and carefully read out the following Detailed solutions which I have
gathered after researching various websites, articles, forums etc.

Fix Error 651

So, without consuming more time I’ll directly come over the main
point of this article. Error code 651 usually occurs when user tries to
connect it’s broadband in windows 7/8 or Windows 10 operating system.

It shows a message that Your modem (or other connecting devices) has reported an error and Usually the message will be “Connection failed with error 651” .

In such cases user tries to restart the whole computer, router or
modem, But You can easily make out when you are facing this problem in
your windows 7/8/8.1 or 10 as this error code 651 shows an error message
when user is working.

How to Fix Error 651 in Windows

There are  ofcourse lots of suggestions and solution available online to solve this Error but
let me tell you that there is no official solution available online or
guarantee for fixing this problem in windows 7. So, for helping out
those users I have tried to gathered all types of solution which can
help you out in solving this problem on your windows 7 or 8 operating

You can relax and follow below fixes to this particular error you are facing.

1. Uninstall Modem

By uninstalling the modem, users can solve this problem. This
solution is Most Common to get rid of this particular error code. Its
applicable for all type of dial up modems. There are many people who had
solved out this problem by this method.

2. Download Updated Drivers.

Drivers are Important for your Hardware. Having Updated Drivers is
even more important. You may face Connection error 651 if you have out
date drivers. SO, go to the official website of your hardware and
download the latest ones. If you don’t want to do the hard work then,
Easiest way is to Use Programs like Driver Agent. 

Driver Agent will Scan your Pc for outdated Drivers. It will then
show you the list of Drivers updates available. You can Update all of
the drivers or choose from the list. The Program is useful and you can
have a System that has Up-to-Date Drivers always.

3. Replace raspppse.sys from windows 7 drivers directory

I have seen that many users has successfully solved this problem by
replacing the raspppse.sys file from the windows 7 directory. 

This method will only work for those users who are currently using windows 7 operating system and are facing this problem.

4. Disable IPv6 for your internet connection

User can also solve this problem by turning off the IPv6 for their
dialer modem. This is one of the most easiest way for solving out this
problem successfully. Right click on the Connections, Select Properties,
Then Uncheck the box which says Internet Protocol Version 6 (TCP/IPv6).

5. Disable Windows 7 auto tuning feature

There are many people who suggested that by turning off the auto
tuning feature we can solve out this problem. This method is useful for
only those users who are using router. To Disable Auto tuning follow the
below steps.

  • Start command prompt as administrator.

  • Type in the below command and Press Enter

“Netsh interface tcp set global autotuning=disabled”

6. Reinstall LAN card drivers

We have seen that by reinstalling the LAN card drivers, Connection
Error 651 problem can be solved. Sometimes it is possible that drivers
may get corrupted and this is the reason why I will suggest you to
install your drivers again.

7. Performing Clean Boot

Performing clean boot can help the user in finding the root cause of
this problem. If there is no problem in your windows services then this
method will not be working for you.

8. Recreate Dialer and Restart ADSL modem router

It is possible that your internet modem could get hanged during the
connection. By removing the dialer and then creating the new dialer can
help the user a lot. Restarting ADSL modem/router can also work during
such type of cases.

Tips to Avoid Error 651 in Future.

Once you have fixed this error, all you want is to avoid this error
as well as other Errors that Pops up in Windows. So we recommend you to
Use Pc Optimizer tools like Total System Care
and make use of it on regularly basis. It will Keep your PC organized.
The Registry entries Errors will be fixed which are the main Culprit for
most of the errors in windows.

So, these are the solutions which I have found while researching to
Solve the Error code 651 in windows . If you are facing this problem in
your windows 7/8 or windows 10Pc then I will strongly recommend you to try these methods once.

Hope, you have liked the above article. If you face any type of
problem after reading the above article carefully then you can surely
leave your comments below in the comment box. Also if you have liked
anything about the above article then kindly share this article with
your friends to help them too…  🙂

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