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Error 651: Connection Failed on Windows 10 [Full Fix]
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Updated onAugust 6, 2024
updated onAugust 6, 2024
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Key notes
To fix various driver issues on your PC, you will need a dedicated tool to find the freshest and the original drivers. You can use PC HelpSoft Driver Updater to do it in 3 easy steps:
If you are using a wireless connection or a cable Internet connection and you upgraded to Windows 10, you might experience some issues regarding theConnection Failed error 651that prevents you from using your Internet connection as you should.
What is error 651 in Windows 10? This is an errorusually caused by a Registry issue and will prevent the tool from recognizing your router or hub device.
If you are using other devices to connect to your wireless Internet connection, they will work. This is mainly an issue affecting your Windows 10 system.
You don’t have to worry anymore – in this guide, we will list the steps to follow in order to fix error code 651. This will only take you a couple of minutes of your time, so don’t hesitate to follow the instructions listed below.
How do I fix Connection Failed error 651?
1. Enter Safe Boot
2. Disable all startup services
3. Rename the rasppoe.sys file
Note:If you want to put the old rasppoe.sys file in the Drivers folder you can delete the one you downloaded and rename the old one you saved above. Rename the rasppoe.sys_backup file to rasppoe.sys and reboot the device.
4. Run the Network Troubleshooter
If your Internet connection remains unavailable, try running the built-in Network troubleshooter. You can launch it from theControl Panelor theSettings page.
To run the Internet Troubleshooter, you may also go toSettings > Update & Security > Troubleshooterand selectInternet Connections.
5. Reset TCP/IP
If the problem persists, try resetting your TCP/IP. Here are the steps to follow.
If you’re having trouble accessing Command Prompt as an admin, then you better take a closer look at thisdetailed guide.
6. Update your network drivers
Outdated network drivers may also trigger error 651. To fix the problem, make sure that you’ve installed the latest network drivers on your machine.
⇒Get PC HelpSoft Driver Updater
7. Disable autotuning
AutoTuning is a feature that’s meant to improve the performance of apps and programs relying on TCP. However, in some cases, this tool may do more harm than good, and disabling it may help you fix error code 651.
So you now know how to fix your Windows 10 error 651. Please write us below if this article was helpful and if it fixed the Connection Failed error in Windows 10.
Be sure that there are several procedures that can help you solve theInternet connection errorsyou might be facing these days.
Take a closer look at ourWindows 10 errors hubas well as it is filled with more useful guides.
More about the topics:internet connection errors
Ivan Jenic
Windows Hardware Expert
Passionate about all elements related to Windows and combined with his innate curiosity, Ivan has delved deep into understanding this operating system, with a specialization in drivers and driver troubleshooting.
When he’s not tackling diverse driver-related problems, Ivan enjoys watching good movies and spending time hiking with his family and friends.
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Ivan Jenic
Windows Hardware Expert
Ivan has delved deep into understanding the Windows OS, with a specialization in drivers and driver troubleshooting.
