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High-speed connection is not connected error 651. What is it

Good day, dear friends! If you are as active and advanced users of computer technology and the Internet as I am, then you have probably encountered connection errors.

Error 651 when connecting to the Internet occurs when trying to start a high-speed connection or when using WAN Miniport (PPPoE) technology on Windows 7 or 8, and sometimes 10.

In previous versions, the analogue of this error was - 678 in Windows XP and 815 in Vista.
Let's look at how you can deal with a similar problem yourself.

Error 651 occurs when connecting to the Internet. Often with such a problem, users of Rostelecom, TTK, Byfly, or using PPPoE try to immediately reinstall the system.

But this does not help, since often the occurrence of an error is associated with a hardware problem for accessing the network.

How to fix the failure depends on the source of the problem - in the equipment itself or on the provider's network.

Here are the main reasons why 651 is written when connecting:

  1. NIC conflict.
  2. Problems with the Windows operating system.
  3. ISP failure, such as line break.
  4. The connection may be blocked by a firewall or antivirus.
  5. Sometimes the error is hidden in the router or in the damage to the network cable.

How to fix connection error?

Now let's figure out how to fix the problem.

  1. Remove and re-create a high-speed Internet connection. This can be done in the network control center. Delete the old connection. Then, in the network settings wizard, go to setting up a new connection, where you can make a new connection and.
  2. Disable antivirus and standard firewall.
  3. Check all connections. Inspect network cables and connections.
  4. If you have multiple NICs, try disabling one of them, but only the one that is not being used by your high speed connection.

If it still gives an error, then the problem may be in the incorrect settings of the router, modem or router.


To get into the modem settings, in the address bar of the browser, enter the ip address: http://192.168.0.1 or http://192.168.1.1.
After the username and password entry window appears. Enter: admin/admin.
In the settings, check that everything meets the requirements of the provider. Pay attention to the type of connection and how you connect to the Internet.

It is important that the indicator lights on the modem are green.

The best option is to reset all factory settings, and then configure the equipment according to the recommendations of the provider.

After that, reboot your device.
If the problem is related to the provider, then contact technical support. Experts will check the line and tell you how to troubleshoot.

But remember that technical support can help if the problem is with the provider. They will not understand the features of your home network.

Ways to fix the error

Let's look at some more simple ways to solve the problem:

  • reboot. Close all windows first and save the information. Then press start and reboot. If there was some short glitch that affected the functions of the network card, then such an action will help;
  • try updating your network card drivers. Go to the start menu, then on the computer icon - properties - device manager. Find network adapters, and then update the driver on the network card through the context menu;
  • The error may be related to the network cable. So check it for physical damage. It is important that its integrity is not compromised. Try pulling the cable out of the socket and then reinserting it. Maybe the contacts just went out. After these manipulations, restart your computer.

Do you know what error 629 means? This means that the problem is with the provider.


Problems with antivirus

A common cause of this error is problems with the firewall and antivirus. Sometimes the connection is blocked at the level of the firewall or antivirus software.
In this situation, try briefly disabling your antivirus. More problems are delivered by the firewall, which must be disabled altogether.

It uses the standard control panel.

The presence of a second network card

If you use several computers, then it becomes necessary to use a local network. In this case, a connection to several providers is used for various reasons.

In two cases, you may need a network card. It is she who can provoke such an error.
To solve the problem, follow these steps:

  1. Turn off the second card. Go to " network and access control center", and then to the item" changing driver settings". After that, press the shutdown command.
  2. Click on the main connection and then reconnect.

Problems with modem or router settings


When working through a router or via a modem, you need to check the settings to connect using PPPoe.

To do this, go to the administrative panel, and then to the section WAN and Internet. Then type in the address bar ip address and code.
You can see the addresses on the sticker at the bottom of the router case. It is better to configure the router in bridge mode Bridge.
If you have an ADSL modem, you need to check the DSL or Link indicators, which should be lit steadily.

If you enter incorrect data, a similar error may also occur.
Try resetting your settings TCP/IP. In this case, you can use the utility Microsoft Fix It.
You can try changing the TCP / IP settings in the registry editor.

In this case, you must perform the following actions:

  1. Launch Registry Editor. To do this press Win+R and then regedit.
  2. Open a tab at this address: HKEY_LOCAL_MACHINE \SYSTEM \CurrentControlSet\Services \Tcpip\Parameters.
  3. Then select "create a 32 bit dword parameter". Name the parameter EnabelRSS and also set its value to 0.
  4. After that create DisableTaskOffload.
  5. Exit the editor and reboot.

What is the problem with error 651 and how to fix it, you can look at the video. I hope my advice will help you cope with high-speed internet, fly, and other systems.
Don't forget to subscribe to my blog updates and share useful information with your friends.
See you soon!

Internet access is a necessary attribute of modern reality. On the World Wide Web, they watch movies, find the information they need, communicate with friends, and watch the lives of celebrities. Therefore, if error 651 occurs when connecting to the Internet, then the first reaction most often resembles fear. However, such a message is associated with technical problems that you can try to eliminate yourself.

Meaning of error 651 when connecting to the internet

The appearance of error message 651 on the monitor is of a hardware and software nature associated with malfunctions in the equipment responsible for accessing the resources of the World Wide Web. It means that something went wrong while trying to connect through a High Speed ​​WAN Miniport (PPPoE) connection. The procedure for fixing an unfortunate failure depends on the cause that caused it.

Reasons for the error

The range of reasons that cause error message 651 is quite wide:

  • unconnected network cable;
  • viral infection;
  • failure of the network board;
  • problems with the performance of the router;
  • outdated/inoperable drivers;
  • raspppoe.sys file mismatch;
  • the presence of a connected second network output;
  • encoding differences, etc.

If the problems are related to a malfunction in the signal line itself, then a call to the provider's technical support service will solve all problems. If the matter is in the network equipment or the user's personal computer, then you will have to fix the problem yourself.

How to fix the problem

How to fix the problem depends on the cause that caused error 651.

Restarting the computer

A universal way to deal with most problems that arise, if they are not caused by more serious violations. You can simply activate the reset button, or completely turn off the computer and turn on the power again. In both cases, the system will be loaded from the very beginning, and if the problem was the untimely delivery of a signal about the health of the network card or router, then the message will no longer appear.

Setting up a network connection again

This method involves deleting the existing connection and running the Internet Connection Setup Wizard. Depending on the configuration of the operating system, the dialog boxes of the wizard may differ slightly, but the essence remains the same. As a result, after rebooting the OS, a workable connection will be created that does not disturb the user with an error message.

The algorithm of actions is as follows:

Reinstalling or updating network drivers

In any case, you will need to use another computer or device that accesses the Internet without problems, since working drivers must be downloaded from the official website of the developer. In a situation where there is no second computer with network access, we reinstall the drivers manually. If the problem is related to the functioning of the network card, then it is enough to perform a series of the following manipulations:


Video: Update/Reinstall Network Card Drivers

Disabling the second connection to the network

There are situations when a user's computer is equipped with two network cards or can connect to the Internet in two ways: wired and wireless. In this case, one of the connections "interrupts" the action of the second, causing an error message. The solution to this problem lies on the surface - we turn off the second connection and check the performance. For prevention, you can disable and enable each of the channels for accessing the network. Manipulations are performed in the Network and Sharing Center by changing the adapter settings.

Checking the modem's performance

This method will require another device that can access the network. The modem is connected to it and they try to access the World Wide Web. If the error message no longer appears, then the problem is not at all in the router. If the system again classifies the connection failure as error 651, then you will have to call the provider's specialists to replace or repair the unit.

Disabling the security system

In this case, it is necessary to disable not only the antivirus, but also the Windows firewall with a firewall. If the connection is restored after that, then you need to enable the security system and run a total anti-virus scan of the computer.

Reinstalling the operating system

To implement this option, you will need a disk or USB flash drive with the OS. The user will need to enter the BIOS settings and activate boot from removable media. After that, the installation wizard will offer an installation option and perform all the required procedures.

Restoring router settings

For this option, you need to open the modem management web interface, the specific address is indicated on the equipment or can be specified by calling the provider's technical support specialists. The settings are located in the Internet or WAN section. A few notes, the account of which will allow you to restore the connection to the Internet:


Rollback to an earlier healthy state

The implementation of this method is possible if you have restore points. The essence is simple - a request to repeat the configuration of all parameters in accordance with the nearest system restore point.

Checking the correctness of specifying the VPN server address

This option is used in cases where access to the network is carried out through a proxy server. When setting a specific IP address in the settings, there may be problems with accessing the network. The appearance of an error indicates that the connection is functioning, but due to the incorrectness of some parameters, it cannot connect to the nearest server.

Checking sockets, cables and connections with a special tester

Interference in the signal path prevents the device from connecting to the network and causes an error message 651. Having found a defective element, it is replaced independently or with the help of a specialist.

Adjusting registry settings

This solution to the problem is used in cases where the computer is running Windows 2003 and generates error 651 when manually installing the PPTP protocol, and error 800 when automatically detected. The procedure for this situation is as follows:

  1. Open a command prompt (Start/Run) and type regedit.
  2. In the registry that opens, we sequentially go through the following path - HKEY_LOCAL_MACHINE/SYSTEM/CurrentControlSet/Services/Tcpip/Parameters.
  3. Create a DWORD function named EnableRSS and set the value to 0 - it will disable ReceiveSide Scaling.
  4. Here we create the Disable TaskOffload parameter with the value 1 - if such a parameter already exists, then we check and correct its value.
  5. We restart the computer.

Thus, the occurrence of error message 651 when connecting to the Internet is associated with errors in the software or hardware for accessing the network. Understanding the mechanism for the occurrence of such problems, you can try to solve this problem yourself by consistently performing the above steps and manipulations. Solutions are presented in order of their complexity, in the absence of minimal knowledge about the operation of the modem and computer, it is more reasonable to seek help from the provider's specialists or the nearest service center.

Connection error 651- one of the most common connection errors in Windows 7 and Windows 8

(Error connecting to a high-speed connection or Miniport WAN PPPoE with the message "Modem or other communication device reported an error")

In this manual, we will dwell on the methods for solving the problem "Connection error 651" in Windows. It does not matter which provider you have: Rostelecom, MTS, Dom.ru, TTK - the methods for solving error 651 are universal.

Error 651 is the first thing to try.

So, you have error 651. What should you pay attention to first of all?

  • Check if all the cables are connected, if any cable has jumped out of the connector, if the cables are not damaged (you never know, a friend's dog somehow gnawed the cable :))
  • Reboot your router / modem or other equipment in your apartment that affects the Internet (just unplug it, wait a while and turn it on)
  • Try to re-create PPPoe connection

The quickest way to launch the New Connection Wizard is to press Win+R on your keyboard, then type rasphone.exe. Then create a new connection and enter the login and password that the provider provided to you.

Or you can go to: "Control Panel - Network and Sharing Center."

After that, we try to connect to the Internet.

  • If error 651 appeared the first time you connected to the Internet, carefully check all the data you entered again.
  • Make sure your computer's network card is enabled
  • It is possible that the problem lies in the antivirus or firewall. Check settings or temporarily disable this software
  • Call the provider and describe the current situation - there may be problems on his side.

So, we have described what to do with error 651 in the first place. If this did not help you, we move on to more complex methods;)

Multiple network cards on a computer or network card failure

It is possible that your computer has two network cards. In this case, the cause of error 651 may be problems with the second network card. To eliminate this option, we will disable the second network card. To do this, go to "control panel - network and sharing center - change adapter settings." Right-click on the desired adapter and select "Disable". You can also disable and enable your main adapter (might help).

You may also have virtual adapters in this list that were installed by certain software. They can also be turned off.

Update computer network card drivers

Also, updating the drivers for the computer's network card can help fix error 651. Drivers can be downloaded from the official website of the computer or laptop motherboard manufacturer, or reinstalled from the distribution kit (if you have one). You can also try removing the current network card drivers and let Windows install the default ones.

Problem with router or modem settings

If you are using a router or modem to connect via PPPoe, then you should check the settings. To do this, you need to go to the administrative panel of your device and go to the Internet or Wan section there. Usually, for this, it is enough to enter 192.168.0.1 or 192.168.1.1 in the address bar of the browser and type in the password. Sometimes the addresses may be different, often all the information for accessing the administrative panel of the router can be read on a sticker on the bottom of the router case. The router with this type of connection must be configured in Bridge mode, otherwise you will constantly receive the notorious error 651, since in the Router mode the Internet connection is established directly by the modem.

If you have an Adsl modem, be sure to check that the Link or Dsl indicator is lit continuously (does not blink - it should be lit steadily). Also, check with the provider's support for the VPI and VCI channel parameters - if you entered the wrong parameters, you will also receive error 651.

Reset TCP/IP settings

To resolve error 651, you can try resetting TCP/IP settings. The easiest and fastest way to do this is to use the Microsoft Fix It utility.

Download the necessary file (depending on the OS), run it - and the program will do everything for you. After that, just restart your computer and try to connect to the Internet.

Changing TCP/IP Settings in Registry Editor

The following method applies to server versions of Windows, but, according to reviews, it can help in our case. We will edit the TCP / IP protocol settings using the registry editor.

For this:

1. Run the registry editor. To do this, press Win + R on the keyboard and enter regedit

2. Open the registry section (folders on the left) at HKEY_LOCAL_MACHINE \SYSTEM \CurrentControlSet\Services \Tcpip\Parameters

3. Click in any free space on the right side of the registry editor and select "Create a DWORD value (32 bits)". Name the parameter EnableRSS and set its value to 0.

4. In the same way, create the parameter DisableTaskOffload with only the value equal to 0.

Close the registry editor, reboot and try to connect again.

Last chance to get rid of error 651

If none of the above helped, try this. (according to the principle "what if")

1.Turn off the computer and all network equipment (routers, modems, switches). Disconnect from the network.

2. Disconnect the network cables from all devices, check their integrity and reconnect.

3. Turn on the computer and wait for it to fully boot

4. Turn on the network equipment and wait for it to fully boot.

Check if error 651 is gone.

If that doesn't help, it's possible that error 651 is caused by malware on your computer. In this case, scan your computer with .

If a similar error does not appear on another computer, then the problem is either in the network card or in other OS problems. Accordingly, try another network card or reinstall the OS.

I tried to fit in the article as many solutions as possible to overcome errors 651. I hope I helped you. If you have any questions - ask in the comments.

Your task at the first stage is to make sure that the LAN is turned on and then act according to the situation. You can also make sure that there is no LAN connection at all. In this case, you need to go to the item to check for network adapters.

Error 651 as a result of incorrect operation of network adapters

Before moving on to this item, you need to remember what is written in the third line of Local Area Connection. For those not in the know, this is the name of your network adapter. We will check the activity of this particular adapter. To do this, you need to open the menu Start and right click on the item Computer/My computer. In the context window that opens, select Control. In the window Computer management You need to open the node Device Manager and find the item Network cards/Network adapters. In the item that opens, find the adapter whose name matches the third line of the LAN. The only thing you need to do is make sure that the network adapter you are looking for does not have a red cross. If it is, right-click on the adapter and select Engage. You can usually find the red cross on the adapter when there is no LAN connection at all. In other cases, you don’t need to rely on luck, but it’s still better to check.

In addition, I will say that if you could not find either a LAN or any adapter, then you either do not have a network card, or the drivers for this very network card are not installed. In this case, it is purely your personal problems. Get familiar with the computer.

How to get rid of error 651?

From the above points, you should have understood that the simplest causes of error 651 when connecting to the Internet are that the LAN or network adapter is turned off. These problems can be solved by the user himself. But what to do in other cases?

If a LAN connection is active or writes that the cable is not connected, the corresponding network card is active and the cable has no damage in the apartment, then feel free to call the technical support of your Provider. They will tell you what the problem is: either you have a computer, or somewhere on the line. You can check this quite easily: if the MAC address of your computer is visible, there is a problem with the computer. If not, then you need to check the line, and possibly the computer.

I hope you are not too confused in the above tips for solving this problem. I wish you good luck and less encounter with error 651.

A similar network connection error number 651 for frequently installed versions of Windows 7, 8 and 10, the system describes it as a network connection error to the high-speed Miniport WAN PPPoE connection type, the text of the generated message looks like this: “The modem or other communication device reported an error ".
This article covers in detail the ways to fix the network errors 651 for all kinds of versions of Windows, and what type of provider you have does not play a significant role in this situation. This information is intended to help you resolve your issue without having to reinstall Windows.


If during the next connection to the Internet error 651 occurs on the screen, then you should try to perform the following simple steps, after each of these steps, you must again attempt to connect to the Internet:

All these rather unpretentious and accessible to all beginners steps will help you eliminate such an error, and the connection will be restored again. This is how error 651 looks in windows 8.

Reset network protocol settings TCP/IP

There are several ways to reset the TCP / IP protocol settings for the popular versions of Windows 7 and 8. The easiest way is to use this special utility called Microsoft Fix It, which you can download on this official portal
Upon completion of the launch of this utility, the program will spontaneously carry out the necessary reset of the Internet protocol, after which you only need to restart the computer and try to reconnect to the Internet.
In some situations, manually unchecking the TCP / IPv6 network protocol, which is located in the PPPoE properties, quickly helps to remove error 651 in some situations. To carry out this action, you need to go to the list of required connections and open the available high-speed connection properties (The sequence of actions is as follows: Network and Sharing Center - change adapter settings - right click on the connection - properties). Next, on the Network tab, you need to disable the checkbox from the Internet protocol of the required version 6.

Update existing network card drivers

Updating drivers on a working computer network card can also be a way out of a connection problem. It is enough just to download them from the official website of the motherboard manufacturers or from a laptop and follow the simple steps to install it.
If you have two working network cards, then this can also cause error 651, then you should disable the one that is practically not used.

Changing the parameters of the protocol operation of TCP / IP in the network registry editor

A similar method is mainly convenient for use in server versions of Windows; I did not use it myself for user versions. It consists in changing some parameters in the registry editor, to launch which you must use the following functional combination "Win + R" and enter regedit yourself. Next, you need to open the following network registry key (folders on the left) HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters using a single right-click on an empty area of ​​the parameter list, you need to select the desired item " Create DWORD Value (32 bits)».


Set the name for the parameter as EnableRSS and set it to 0.
Create the required parameter in the same way DisableTaskOffload with the required value 1.
After that, the computer must be restarted and try to connect again.

Checking the technical hardware component

If none of the above has fixed the problem, then it is worth moving on to more radical troubleshooting methods in the form of reinstalling Windows.
  1. First you need to disconnect your computer, router or modem.
  2. Next, it is worth disconnecting all the cables, at the same time once again carefully review the integrity of the cable connections.
  3. Next, you should connect the computer and wait for it to fully boot. If there is a network router on the cable line, then you need to turn it on, but you should do this only after the computer boots up.
Well, then it’s worth taking a closer look to see if a repeated error 651 occurs again.

A similar error can also be caused by the action of some unidentified malicious file on the computer, in which case it is necessary to check the health of your software using special tools, for these technical purposes, in addition to, it is recommended to use the following high-quality Hitman Pro programs and the well-known Malwarebytes Antimalware. Perhaps, after eliminating dangerous software, error 651 will no longer glow on your screen.

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