In case you are using the Wireless Internet connection or a cabled connection and have also updated your old Windows 7 and Windows 8 to Windows 10, then you might come across some issue. The issue is related to error 651 that prevents you from accessing Ian internet connection. Since the error is caused by a registry issue therefore is not probably recognized by your Router or Hub device. You will see the error 651 in Windows 10 while using other devices to connect to your Wireless internet connection. Here you will find out How To Fix Error 651.
Well, if you have come across this Windows 10 error 651, don’t worry for it is not an error that is hard to fix. The same error can also be seen in other displayed errors like Error 651: The modem (or other connecting device) has reported an error. And the message is generally titled with Connection Failed with Error 651. So here we are with the perfect solutions to fix error code 651 in Windows 10 and Windows 8.
- 1 How to Fix Error 651 Windows 10?
- 1.1 Method 1- Disable IPv6 of Internet Connection Fix Error 651 in Windows 10
- 1.2 Method 2- Fix Windows 10 Error 561 by Disabling TCP Tuning – How to fix error 651
- 1.3 Method 3- Fix Error 651 by Updating Network Adapter Driver
- 1.4 Method 4- Restart your Computer and Modem – How To Fix Error 651
- 1.5 Method 5- Create a new dial up connection
What is Error 651?
Basically, Error 651 is a network based error that occurred with the upgrades of Windows 10. Technically, error code 651 is related to PPPoE, Point-to-Point Protocol over Ethernet. This PPPoE controls the computer to Ethernet connection meaning it is local to your PC. The error message “Connection failed with error 651” may be a network related issue that occurs when you attempt to establish a secure Internet connection.
Causes of Windows 10 Error 651
The error 651 in Windows 10 can be due to multiple reasons and some of them are listed here.
- Drive corruption, misconfiguration or Windows error.
- Unsuitable network card driver
- Improper IP settings
- Improper Internet configuration
How to Fix Error 651 Windows 10?
By now you know what 651 error is all about and also you are aware of its causes. So let’s move little ahead by showing you the ways in which you can find out how to fix error 651 in Windows 10 and its old versions.
Method 1- Disable IPv6 of Internet Connection Fix Error 651 in Windows 10
The IPv6 is comparatively a new network protocol whose full functions hasn’t been known till now. And as many routers and networks don’t support it, IPv6 faces a lot of configuration issues in Windows Operating System. And so disabling the IPv6 of your Internet connection can fix the network issues like Error 651. Therefore follow the given steps to turn it off till you require it in the future.
Step 1: Open Control Panel of your system. Then go to Network and Internet and select the Network and Sharing Center option.
Step 2: Next to the Connections option, you will find an Ethernet text link. Click on the link.
Step 3: Now click on Properties.
Step 4: Tick the checkbox against IPv4, and uncheck the IPv6 option.
Method 2- Fix Windows 10 Error 561 by Disabling TCP Tuning – How to fix error 651
The next thing that you can try is disabling the TCP tuning. Though there is no solid evidence as to how TCP interferes with PPPoE and leads to network error, but disabling TCP tuning has worked for many.it basically helps you to manage traffic on a network. TCP tuning is normally required for large networks that involve a large number of networks using large portion of available bandwidth. And so if you want this method to work, make sure that your system is connected to router, instead of a modem.
Step 1: Firstly invoke a command prompt as an Administrator.
Step 2: Now type “netshintip reset reset.log”. Press Enter.
Step 3: Then type the following command- netsh interface tcp set global autotuning=disabled. And press Enter.
Step 4: Finally reboot your system.
This was another method that works just fine to troubleshoot the Windows 10 error 651. If this method doesn’t work for you, then you can give the next one a try.
Method 3- Fix Error 651 by Updating Network Adapter Driver
After updating to the latest Windows 10 Operating System, many users have reported multiple errors. If you too have updated your system to Windows 10 recently, then an outdated Network Card driver probably is causing the issue. Downloading and installing the updated Network Card driver will help you troubleshoot the Windows 651 error.
Step 1: Open Control Pane of your system. Then click on Security and System.
Step 2: On the left side you will observe Device Manager Text link. Click on it.
Step 3: Now from the list, locate Network Adapter and then select your card.
Step 4: Right click on the Network Card Driver and choose Update driver software option.
Also make sure that you select the Automatic option, as it will let Windows find the correct, updated version of the driver for your system. This will help you to escape the stress of finding the correct and compatible drivers. You can also take help from Diver Update Utility tools like Driver Talent. These tools not only detect the missing or corrupted drivers in seconds but also downloads the correct driver for your PC automatically.
Method 4- Restart your Computer and Modem – How To Fix Error 651
As discussed above the network error 651 may be due to your PC or modem issue where there might go something wrong when connecting. So restarting modem and PC/laptop to regain the connection might help. Follow the basic steps on how to fix error 651.
Step 1: Turn off your computer.
Step 2: Then turn off your modem and unplug the adapter from the main power source.
Step 3: Unplug all the cables as well connected to the modem and computer.
Step 4: Wait patiently for at least 30 seconds. Then reconnect the correct cables into your modem and computer.
Step 5: Now re-plug your modem with the power source. Turn it on.
Step 6: Turn on your PC.
After everything is done successfully, try to connect again and look if the problem is solved.
Method 5- Create a new dial up connection
Creating a new dial up connection on a computer will check if the modem is properly set to the bridged mode. If you have already set up a dial up connection for your network, you can try to create a copy to resolve the issue.
Step 1: Right click the Internet icon found at the bottom right corner.
Step 2: Click Open Network and Sharing Center. Then click on Change Adapter Settings option.
Step 3: Then right click the dial up connection, and click on Create Copy.
Step 4: Now right click on the original dial up connection. Finally select Delete.
Now try reconnecting to the network to see if this method works or not is troubleshooting the error.
So these were some of the methods or solutions that you can employ to fix the error 651 in Windows 10. I hope this article will fix your problem quickly and if the issue still persists, feel free to communicate.