Errors are often faced by the people while working on the device or system making the user to become unable to access it and perform the work on the device or system. These errors pose to show the imperfection present in the operating system and non-functioning of the system according to the norms made from it. Windows operating system is no exception from the fact that the errors and problems are arisen on the desktop while functioning on it. Problems are enough to make the person to get annoyed and worried about the working done on the system.

The most common error arising in the Windows operating system faced by the people is Error 651. Error 651 is generally the error related with modem connection of your system and is an irritating error for the user. It makes the modem connection unable to work properly and function efficiently to make the person to access it for the working along with it restrains the user to use the internet connection.

Error 651

There are several reasons that make the error to pop-up and making the user to experience it:

  • Wrong Connection at broadband.
  • LAN card of the desktop is disabled by the user
  • Driver is been corrupted due to the virus attack on the system
  • Spyware is running and interfering with the modem connection of the system.
  • Firewall of the third-party application is blocking the connection.

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Fixing the Error 651 on Windows 7 / 8 /8.1:

Several ways and methods are present for solving and fixing Error 651 on Windows 7 / 8 / 8.1, making the user to get access to the modem connection of the system and use the internet on the desktop.

Method 1: Uninstall the Modem

Try to uninstall the Modem in your system and is applicable on every modem connection even the dial-up one comes under it. This method is an easy fix and solution for resolving the error, many people have got the error to resist after trying this fix.

Method 2: Disable IPv6 on your Connection:

You can also try this method; disable the IPv6 on your modem. Go to the Connections option of the system and right click on it to go to Properties of the connection. Then Uncheck the box stating Internet Protocol Version 6 (TCP/IPv6).


Method 3: Disable the Auto Tuning Feature:

Auto Tuning feature of Windows can also be the reason of making the modem connection to show the error. Disable it by opening the CMD in your system by opening the Start Menu and type CMD.exe on the run bar. Then type the command “Netsh interface tcp set global autotuning=disabled” and then press Enter for executing the command.

Method 4: Reinstall LAN Card drivers

Lastly you have to uninstall the LAN card driver on your desktop and reinstall a fresh one to solve the Error 651 on your modem connection.

Wireless Connection in Windows 7

These methods will surely help you to solve the Error 651 and make the modem connection work efficiently making the user to access the internet on the system.

Error 651 on Windows 7 / 8 / 8.1 – How to Fix it
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