How to fix error 651 in Windows 10 easily?

Sometimes when the error code 651 shows up on my computer in the middle of trying to get something important done, I feel like giving up, but then I remember I have to keep working.

Do you also experience the error 651? So, what does “connection failed with Error 651” mean?

The way the error 651 is displayed on your screen is this:

“Error 651: The modem (or other connecting device) has reported an error.”

But why does the Windows 10 error 651 occur? In this simple guide, I will show you why the error occurs in Windows 10 and I will also explain how to fix Error 651 on a Windows PC.

Why Does Error 651 Occur on Windows?

(You don’t have to bother about this section if you already know enough about the error 651 in Windows 10; you can move on to the solutions that are after this section).

Error 651 may show up while you are trying to connect your computer to the internet using PPPoE (Point-to-Point Protocol over Ethernet). PPPoE is used for connecting multiple PC users on an Ethernet network.

If the error code displays on your computer while you are trying to connect to a local area network, any of the following could be the issue:

• An Internet protocol error due to the invalid IP
• A faulty or outdated network driver
• An error in the registry
• The wrong location for the Raspppoe.sys file

It may be difficult to pinpoint what is causing the error 651 on your Windows 10 exactly, but one or more of the easy hacks I will share with you below will help you to solve the problem quickly.

6 Easy Hacks to Fix Error 651 in Windows 10 Easily

If you try a method that does not solve the issue, don’t give up! Try the next method.

I have made them very simple for you to understand, and hopefully, one of the easy hacks will help you get rid of that annoying error 651 code in your Windows 10 once and for all.

Hack 1: Restart Your Modem and Computer

Restarting your modem and computer is probably the simplest thing to do, but it may be what you need to do to get rid of the error 651 permanently. Many people who want to know how to fix the error 651 on a Windows PC usually try this method first.

Follow the simple steps below to restart both your modem and computer quickly:

• Shut down your computer after you have saved all your work.
• Switch off your modem and unplug it from the power source.
• Detach every cable from your modem and your computer.
• Wait for around 30 seconds before reconnecting the cables precisely.
• Now, plug your modem into the power source, and switch it on.
• Turn on your computer now, and check to see if the error code shows up again.

If you followed the steps above, your computer should easily connect to an Ethernet local area network now. But if it doesn’t, something else may be the problem. Try the next hack.

Hack 2: Uninstall the Modem Software

Incorrectly configured modem software may also be responsible for the error 651 on your Windows 10 PC. And that’s why uninstalling your current modem software can help to solve the problem.

If you have a dial-up modem, it’s a perfect deal for this method, but you can also use this method for other kinds of modems too.

(Ensure that you switch off your modem and unplug it from the power source before uninstalling the software associated with it).

Hack 3: Update Your Network Card Driver

There are two ways to update your network card driver quickly. Using the manual method is lengthy, time-consuming, and sometimes inaccurate. Using an automatic driver updater, on the other hand, is more efficient and reliable.

1. Updating Your Network Driver Manually

Manually updating your network driver may be problematic if you don’t understand the technicalities of updating a driver. But I’ll teach you how to update your network card driver manually in the following steps:

• Press the Windows logo and X keys simultaneously; then select Device Manager in the quick menu.
• Double-click Network adapters after the Device Manager window appears on your screen.
• Right-click the device whose driver you want to uninstall, and select Uninstall driver.
• Check the box next to Delete the driver software for this device to confirm your action, and then click Uninstall.
• Restart your device once you have uninstalled the driver, or you can restart your computer at a scheduled time to complete the process.
• After restarting your device, Windows 10 will automatically search for updates and install them.

Have you followed the steps above? You can now check if the issue has been resolved.

2. Updating Your Network Driver Automatically

Using third-party software to update your network card driver automatically is better than doing it manually. I recommend using Auslogics Driver Updater to update your network card driver.

Auslogics Driver Updater is built to help you identify faulty, missing, or outdated drivers, give you a report on them, and automatically download and install the latest manufacturer-recommended versions of your drivers.

Let me show you two things you will no longer have to bother about if you use Auslogics Driver Updater:

• identifying the correct driver update that is compatible with your OS, and
• searching for the latest update and automatically replacing it with a more suitable update if it doesn’t work for your Windows 10 PC.

Hack 3: Restrict IPV6 for Your Internet Connection

Restricting IPV6 has worked like magic for many people affected by the “connection failed with Error 651” issue. Follow the steps below to restrict IPV6 for your internet connection:

• Right-click the Internet icon on the bottom-right side of your screen; then click Open Network & Internet Settings.
• Click Change adapter options.
• Right-click the network connection you are using; then click Properties.
• Uncheck the box beside Internet Protocol Version 6 (TCP/IPv6) and click OK to save the settings.

After following these steps, the error code should not show up again. But if it does, try the next hack.

Hack 4: Turn Off the Auto-Tuning Feature

The auto-tuning feature on your Windows 10 PC is turned on by default, and that’s because it helps to monitor routing factors, including bandwidth and network delay. Sometimes, it may be the reason for Error 651 on a Windows 10 PC.

To turn it off, follow the simple steps below:

• Type cmd in the search box provided near the Windows Start menu.
• Select Run as administrator on the right-hand side of the window that appears; then click Yes.
• Copy netsh int ip reset reset.log and paste it in your Command Prompt, and then press Enter on your keyboard.
• Restart your PC and try to reconnect to your local area network after the command has been completed.

This should solve the problem, but try the next hack if the error code still shows up.

Hack 5: Perform a Clean Boot

Performing a clean boot can also help you to get rid of the error 651 on your Windows 10 PC. Follow these steps to learn how to perform a clean boot:

• Click on the Start icon and type MSCONFIG in the search box; then click System Configuration.
• Click on the Services tab, and then uncheck the box next to Hide all Microsoft Services.
• Click on Disable all.
• Go to the Startup tab; then select Open Task Manager.
• Select and disable every startup program.
• After you have done that, close the window, click Apply, and then click Restart.

Hopefully, you will be able to connect your computer to the Internet after completing a clean boot.

Still Experiencing Error 651 on Your Windows 10 PC?

If you are still experiencing the error 651 on your Windows 10 PC, or if you still want to know more about how to fix the error 651 on a Windows PC, please let us know in the comment section. You can also search our blog for solutions to other problems that you may be experiencing on your Windows 10 PC.