The two main reasons for the message "Error 651: the modem or other communication device reported an error" are problems on the provider's side or incorrectly set / lost settings on the user's side. If the provider denies the problem, you will have to independently diagnose the cause and check the network settings.

The first step is to restart the entire system: computer, router, router and try to establish a connection again. It is worth making sure that there is no work on the side of the provider and mechanical damage on the cable in the apartment. Only if simple actions do not help, it is worth moving on to changing network settings.

Fixing error 651 when connecting to the internet:

Call provider, check cables, reboot

If error 651 did not appear during the first setup of the Internet or equipment (a new router, router), then you should not go into the settings for no reason - they rarely go astray on their own. It is enough to take a number of simple steps to eliminate the banal causes of the problem.

1. Call provider. If the Internet worked stably, and then a window with an error message 651 began to appear, then this may be a temporary failure due to a line failure or technical work. Before climbing to change the settings, you should call hotline your provider (Rostelecom, ByFly, Beeline, MGTS) and check the information. The error can only occur for those providers that use a PPPoE connection.
2. Check the integrity of the wires. Error 651 does not depend on the version of Windows (7, 8, 10), nor on the provider, nor on the model of the router: it only reports that the communication device cannot establish a connection and gives an error. It will not be superfluous to check the connection of all cables and the absence of mechanical damage on the wires or in the connectors.
3. Reboot Devices. You need to restart the router and computer, as well as the modem (if any). The router should be left off for a minute or two, and then simply plugged back into the network. Next, the computer will need another 1-2 minutes to set up the connection, after which you can reconnect and enter the Internet.
4. On first start. If the message "Error 651: The modem or other communication device reported an error" appears when initial setup Internet and the first attempts to enter the network, the problem is caused by incorrect high-speed connection settings. Usually, users enter incorrect data when trying to set up the Internet on their own - for the vast majority of providers, all settings are set by an on-site specialist. Again, it’s enough to call the provider’s technical support so that they check all the information on their part and tell you what data you need to enter where to establish a connection.

You should also remember if you have recently installed programs related to computer security (antiviruses, firewalls, third-party protection systems). Such software can block unknown connections- it is worth disabling the recently installed software and trying to connect again.

Separately, you should check the correct operation proxy-servers, VPN- programs and other software that encrypts and redirects network traffic. You should check that the VPN server settings are correct if the programs have been installed recently.

If your computer has two network cards installed, one of them should be disabled. It will not be superfluous to update the drivers for the network card, as well as check for all the necessary system files in Windows using the command "Start" -> Run -> enter sfc /scannow and press Enter. The check will take a few minutes, after which the system will write whether everything is in order with the OS.

Disabling Receive Side Scaling and Offloading support

Error 651 when connecting to the Internet may occur due to the enabled Receive Side Scaling and Offloading support settings in the registry - to fix the situation, they must be disabled. The problem most often manifests itself in old Windows versions, starting with Windows 2003, but can also occur on Windows 7 and 10.

With this error, if the PPTP protocol is specified manually, the system starts displaying a window with error 651. If the protocol is detected automatically, an error with code 800 appears. The solution to the problem is to go to the editor Windows Registry and disable the Receive Side Scaling and Offloading support options.

1. Open menu Start, press Run.
2. In the window that appears, enter regedit and press Enter.
3. In the left part of the window, find the registry branch HKEY_LOCAL_MACHINE \SYSTEM \CurrentControlSet \Services \Tcpip \Parameters.
4. In the right part of the window, right-click on an empty space, select New -> DWORD Value.
5. Name the parameter to be created EnableRSS and give it a value 0 .
6. Create another parameter with the name DisableTaskOffload and meaning 1 . If such a parameter is already in the section, you just need to change its value by one.

You must restart your computer for the changes to take effect. After the reboot, the 651/800 errors should stop appearing while connecting to the network.

Error 651 when connecting via modem or router

If simple steps do not help, you will have to check the settings of the router and the TCP / IP connection. In some cases, it is enough to reset the settings, restart the computer and create a new connection for the Internet to work normally.

If a internet cable connected to router(your own or from the provider), and already from the modem the cable goes to the computer or the router distributes the Internet via Wi-Fi, then on the computer in general no need to create high speed connection .

Modern modems (routers) have two modes of operation:

1. router. In this mode, the equipment works by default, and high-speed connection settings on the computer are not required. The router itself establishes a connection to the provider via the PPPoE protocol - just enter the connection data on the router settings page (in the browser 192.168.0.1, 192.168.0.0 or 192.168.1.1, depending on the model). If, with this type of connection, you try to create a high-speed PPPoE connection on your computer, a window with error 651 will appear - and correctly.
2. Bridge. If you want to run the router in the "bridge" mode (Bridge), then you need to transfer it to the appropriate mode in the settings, and then create a high-speed connection on the computer. In practice, it makes no sense to run equipment in bridge mode - this does not provide any advantages. ordinary user. If the transparent bridge mode is not enabled, then creating a high-speed connection is pointless - the router will not let it through and will return error 651.

Thus, creating a new connection or changing its settings is required only if the Internet is connected directly via cable, without a modem. If there is a modem (router, Wi-Fi router), then settings are set in it.- look for instructions on setting up your router model or contact your provider for the necessary data.

The login and password for logging in at 192.168.0.1/192.168.1.1 are usually written on the back of the modem or router. The data for connecting to the Internet should be checked with your service provider (they can be written on the Internet connection agreement).

If you are sure that everything is connected correctly and should work, you should try resetting the network settings:

1. Reset TCP/IP settings. AT Windows 7 and 8 need to run command line as administrator (Start->Run->cmd.exe), then enter two commands in turn. Enter first netsh winsock reset and press Enter, wait for the operation to complete. Then enter the second command netsh int ip reset c:\resetlog.txt, press Enter and wait for the procedure to complete. Restart your computer to save changes.
2. AT Windows 10 to reset TCP/IP settings, do the following: press Start, go to Options, open section Network and Internet, go to the tab State and find the button below Network reset. To restart a computer.

For ADSL modems it is important that the indicator Link or DSL burned steadily (was not extinguished / did not blink). It is also important to clarify the channel parameters used in the provider's technical support - VCI and VPI. If these settings are incorrect, the ADSL modem will return a 651 error.

After resetting the network settings, you need to create a new High-speed connection (PPPoE):

1. Press the start button, open Control Panel.
2. Open the "Network and Internet" section, from there go to the "Network and Control Center public access».
3. In the "Change network settings» Select "Create or set up a new connection or network".
4. In the "Select a connection option" window, select Internet connection(Setting up a broadband or dial-up Internet connection).
5. Choose High speed (with PPPoE). DSL or cable connection that requires a username and password.
6. Next, you need to enter the username and password provided by the provider for accessing the Internet, enter the desired network name and allow / deny other users to use this connection. If you do not check the box, others Windows users this computer will not be able to access the network.

It would not be superfluous to uncheck the “IP version 6 (TCP / IPv6)” protocol in the settings - this often helps:

1. Go to "Start", open "Control Panel".
2. Go to section Network and Internet -> Network connections.
3. Click on high speed connection right click mouse and go to Properties.
4. Open tab Net and uncheck the box IP version 6 (TCP/IPv6).

Resetting the settings and creating a new connection are only relevant for a direct wired connection. When connecting via a modem or via a Wi-Fi router, hardware setup (modem/router) is required, not connection.

Probably many users computer systems Those using Miniport WAN PPPoE technology or a high-speed connection to connect to the Internet sometimes encounter an ambiguous problem when, instead of expected access to the Network, a 651 failure message (connection error) appears on the screen. What is it and how to fix this situation? Looking ahead, we immediately note that this is done quite simply.

when connected: what is it?

First, consider the nature of such a failure. As a rule, the text of the message indicates that the modem or router returns an error when trying to use their settings to connect.

In other words, either at the physical or at the software level, there is a problem that blocks access. We will not go into details of the description of the technologies themselves used to create or establish a connection, but will focus more on the causes of such failures and the simplest methods for correcting them.

Reasons for the error

It goes without saying that the very reasons due to which error 651 occurs when connecting to the Internet (Windows systems are taken as an example) can be quite a lot. Of all this diversity, only those that are most common and are, so to speak, the main ones can be distinguished:

• damage to equipment and cables at the physical level;
• incorrect operation of the PPPoE client;
• the presence of a double connection to the network;
• connection blocking by antiviruses and built-in Windows tools;
• incorrect parameters in the router settings, etc.

Based on what is presented in the list, we will look for a solution to fix failure 651 (connection error) for each specific case.

If physical damage is present

First of all, if suddenly a computer or laptop issues warnings of this kind, you should not immediately look for the cause, say, in viruses or in a “rally” of network connection settings. Everything can turn out to be tritely simple: maybe network cable damaged, maybe there was a power surge, maybe the connectors are loose somewhere, but you never know what?

Naturally, it is desirable to check all the components or "ring" the cable. However, a simpler option often helps. To begin with, in the warning window, click on the line with the offer to reconnect. Who knows, maybe it was a fleeting glitch. If this does not help, you can try to completely restart the computer terminal and At the same time, between turning off and turning on the router again, you need to pause for at least 10 seconds to reset the settings, and then wait for the full load. If this is not done, the system will again display a message like "Error 651 when connecting to the Internet." On the other hand, this approach may not help if the initial problem of communication failure is much deeper. Let's see what else it could be.

Error 651 when connecting to the internet: RASPPPoE client failed

When used for creation, most often failures of this kind are observed in the operation of specialized modules, including the client responsible for PPPoE.

Let's take a closer look at this client. As a rule, as the main method of correcting the situation, it is supposed to create a new connection.

To do this, you need to use a combination Win keys+ R, which calls the Run menu, where the rasphone.exe command is written in the line. Next, you should choose one of three options (for PPPoE, a high-speed connection via a modem or DSL is used), after which you just need to follow the instructions of the "Wizard".

Accordingly, the newly created connection must be checked for operability. If, however, a connection error 651 is observed in the new connection (Windows 7, for example), then you will have to check some parameters and settings. First of all, make sure that the router and Wi-Fi module on your computer or laptop are turned on. Perhaps the wrong parameters for VPN networks are set, etc. But first things first.

Foreign network presence

One of the reasons for such failures can be the presence of a second connection, for example, when two network adapters are installed on the user's computer with two parallel sessions. In this case, Windows 7 interprets failure 651 (error connecting to the Internet) as an internal conflict when one connection takes precedence over another (in particular, for cases where services are provided by two different providers).

Remember, if you just disconnect the cable from one network card, there will be no sense. To do this, go to the network and sharing management section and disable one of the adapters there (menu for changing adapter settings). In this case, you should not delete it in the "Device Manager", this may adversely affect the system as a whole.

Problems with antivirus and firewall

Very often there can be a situation when the connection is blocked for some reason at the level of antivirus software or the Windows firewall. In such a situation, you can first try to disable the antivirus for a while (many packages provide such a function). However, as practice shows, the firewall is more different for the worse.

Here it should be turned off completely. For this, the standard "Control Panel" is used, where the appropriate section is selected. The system will issue a couple of warnings, but you should not pay attention to this. By the way, many may wonder why it is necessary to completely Yes, just because it will not work in any way to add an Internet connection to the list of exceptions. This is not an "executable" or any other executable program file.

Incorrect router and protocol settings

Now let's look at the most common problem, when the router settings “fly off”, and the system reports that a 651 connection error has occurred. How to fix this situation? First you need to check basic settings the same router.

You can enter them through any of the Internet browsers by typing in address bar either 192.168.0.1 or 162.168.1.1 (it all depends on the router model). In general, this address can be found on the label below. There you can also find out the username and password, if any.

First of all, you should pay attention to the address of the VPN server (for PPTP and L2PT connections). In addition, for ONT terminals on the router, you need to use the "transparent bridge" (Bridge) mode, otherwise the system will again display a 651 failure message (connection error) when trying to connect.

Next, you should compare the TCP / IP settings with those provided by the provider when connecting. As a last resort, you can try asking automatic detection, as well as disable the use of proxies for local addresses.

Additional Registry Actions for Server OS

Failure to connect to the Internet), of course, can also occur on server versions of Windows. In particular, this concerns the modification of Windows 2003 Server. Here the specifics of fixing the problem are somewhat different, although the above methods sometimes help.

But in this case it is better to use the editor system registry, called by the regedit command from the Run menu bar (Win + R), where you need to navigate the HKLM tree branch through the SYSTEM, CurrentControlSet sections and further to the Parameters folder located in the Tcpip directory.

Here, you must first create a DWORD parameter called EnableRSS and assign it a value of 0, and then in the same section, a DWORD parameter named DisableTskOffload with a value of 1. If this particular parameter is already present in the registry, you just need to change the value to one. After that, without fail, for the changes to take effect, the computer terminal must be restarted.

Outcome

In general, only the most typical cases of type 651 malfunctions are considered here. Situations where problems arise from the provider's side were not considered (here the user will not be able to do anything). Also, situations where a reinstall or update may be required were not taken into account. network drivers. Otherwise, as can be seen from all of the above, the problem is solved quite simply.

Error messages when connecting to the Internet haunt even today's high-speed connections. Often such problems are noticed by Windows users, where each failure has its own digital code. With its help, the user has to independently find the problem and its causes.

What to do if the computer does not connect to the Internet

Your first action, when the modem or other communication device reports an error, is to check the physical integrity of the connection. Cables between personal computer, modem, router and socket (or cable entry point into the apartment) should be checked for damage. The cause of the problem may be the loss of contact from the connector. After checking the connectors, try starting the connection again. A recurring situation indicates that there is a problem at the software level. Write down or memorize the digital code in the message.

Whether you are using a vpn or pppoe connection, there is a common set of three-digit numeric codes to determine possible cause failure. The code itself does not give accurate information, because the problem may be a hardware malfunction or an incorrect configuration. software, and sometimes in the restrictions on the part of the provider. The purpose of the digital code is to narrow options which you can check yourself. Error 651 when connecting to the Internet, for example, means that the problem is in the high-speed PPPoE method or its equivalent.

What is error 651 when connecting to the Internet

In operating rooms Windows systems Vista and earlier a similar situation had the code 678 and 815. New code has been assigned since Windows 7. This message appears with the text that it is impossible to use the WAN Miniport (PPPoE) to access the provider's services. The failure may be on your side - in the modem or the configurations of the connection itself. ISP network outages will show the same failure. The only fact reported by the code is that there is no internet connection. Connection failure with error 651 resolves itself if the devices and cables used are not damaged.

Solutions for this problem

Start diagnosing and troubleshooting a failure with code 651 by checking the antivirus or built-in firewall settings. The connection could be in the list of suspicious connections. You will have to manually release the lock. If the message continues to appear, turn off all antivirus programs, and also add your Internet access to the list of trusted connections for the firewall and antivirus. Error 651 when connecting to the Internet often disappears after correct setting protective programs.

Check the settings of the Internet access itself, or delete and recreate it manually so that the connection error 651 disappears. You should have the instructions provided by the provider when concluding the contract. To create a connection again use Windows tools. In the main menu, find the creation of a new network connection: You are interested in high-speed (DSL, cable modem) PPPoE. The creation and configuration wizard will prompt you to enter the provider's data.

Checking the reasons for code 651 can be done by the provider at the request of the client - send a written request or call the support service. After checking the port assigned to your contract and the equipment on the line, you may be asked to look at the parameters of the modem or router. Access to such settings is made by entering the address 192.168.x.x in the browser. The last digits of the modem address, login and password are specified in the contract, or they are reported by the support service. In the Internet or specifically WAN section, you can see the current settings.

Video: how to fix error 651 in Windows

In this article, I would like to clarify one incomprehensible situation, which is associated with the appearance of error 651 when starting a high-speed connection through a router. I will explain why this error occurs and what needs to be done to get rid of it.

To be honest, if you understand how a router works, you are unlikely to encounter this error. But, as it turns out, such a problem arises. Here, recently in the comments I was asked for help. The problem was that the person installed and sort of configured the router, but after that, when he tried to start the connection on the computer, he got error 651. And that's it, he could not connect to the Internet.

I tried to explain as simply as possible why this happens, but they did not understand me, or did not want to understand. In the end, it turned out that I don’t know anything, and I’m just trying to be clever :). It's been a fun correspondence. If you are interested, you can see the first commentary by clicking on the link. Comment from the author Roman (read our correspondence).

After such a case, I decided to write this article, and also tell here why error 651 appears after installing the router.

In this article, we will consider the case when “Error 651” appears only when connected to the Internet through a router.

Simply, this error can also occur when the cable is directly connected to the computer. Then, the problem is most often in the operating system (I advise you to delete and re-create a high-speed connection), or on the side of the provider.

Everything is much easier than it seems. The main thing here is to understand how the router works. I will now write approximate actions, as a result of which the error that we are talking about today is obtained.

Why does error 651 occur when connecting through a router?

Look here. We have a provider that provides Internet using PPPoE technology. This means that you have created and configured a high-speed connection on your computer, which you launch to connect to the Internet.

We installed a router, maybe even set it up. We start the Internet connection on the computer and see:

Error 651: The modem or other communication device reported an error.

It looks like this:

By WiFi devices will connect, but most likely there will be no Internet access.

That's actually the whole problem.

How to solve this problem?

After installing and configuring the router, high-speed connection on the computer can be removed we don't need it! This is the main thing to understand in solving this problem.

By default, the router operates in mode router(logical :)), which means that he will call the provider and establish a connection to the Internet. And just distribute the Internet to your computers, laptops, phones, etc. But you don’t need to create and launch a connection on a computer. Simple enough, or via Wi-Fi and everything will work. No connections there. The router will establish a connection.

You can, of course, use the Bridge. At which you connect the Internet to the router, and the computer to the router. In this case, the PPPoE connection must be configured and started on the computer. But this makes no sense, the Internet will simply pass through the router and nothing more. It's better to just plug the cable directly into the computer.

On the tab WAN by selecting connection type PPPoE all required parameters must be set. You can get them from the provider, or look at the contract that you were given when connecting to the Internet. updated: February 7, 2018 by: admin

Connection failure with code 651 - this is an error that a technician can issue when connecting to the Internet, which means that you or another user tried to unsuccessfully Establish a network connection through the WAN Miniport port (PPPoE protocol) at high speed.

Often we get notification"Modem or other communication device reported an error." Most often, this error occurs for those users who work with Windows 7 and Windows 8. For Windows XP users, the analogue is error 651, on some other operating systems the error 678 and 815 .

This problem may arise from provider(especially for byfly, ttk, dom.ru, continent up, ufanet and others), and through the fault of himself user. And if the “Internet provider” can affect the signal quality in time or try to quickly fix the error, then the user who did not turn off the router or modem from the network during a thunderstorm or allowed the cat or children to pull out, gnaw through the wire is responsible for the network.

Frequent error in Windows 7

Those who use Windows 7 may encounter error 651. To remove it, you need to open device Manager and in case of incorrect operation, the window will display not only the driver of your network card, but also others unknown driver system.

The appearance of this error is most often associated with the presence on the PC viruses. Also, the reason for the lack of Internet may be initially incorrect installation drivers. In any case, the user is recommended to seek help from a specialist or remove unnecessary drivers on their own, then reboot and scan the entire PC for viral infections. You can still verify computer available system errors and fix or delete them.

Minor bugs in Windows 8

A network problem may occur if the user has a system installed 64-bit version. In order to fix the problem, it is enough to change the 64-bit version to the 32-bit one. But don't ignore standard ways getting rid of the problem that we described above. Note that the presence of an error also displays the interface itself differently, so the same error may look different.

Features of the error in Windows 10

If you are using Windows 10 and encounter error 651 when connecting to the Internet, then the cause of its occurrence may be an incorrect installation drivers network adapter.

A more or less advanced PC user can fix this problem on their own. To do this, open a window with the properties of the network adapter on the computer and uncheck all the checkboxes, except for the item " IP version 4 (TCP/IPv4)". After - restart the modem and try to establish a connection again.

Error on other operating systems

An error with connecting to the Internet can also occur when working with others operating systems(for example Linux or Windows Vista, Windows XP). Note that if the Internet is not available for a user with Windows XP, then the system will issue error 678 instead of 651, although they are similar. And for Windows Vista users, it will be indicated by an error 813 . But all this is treated as one and also error 651, which the user can fix on their own using the tips that we have indicated.

Troubleshooting Methods

You can get rid of error 651 when connecting to a network on most operating systems yourself using a number of methods described below.

Recreate connection. Check the cable connection to the PC or laptop. It may be that the cord was simply pulled out or it fell out.

Also pay attention to connector(the connector itself, which is included in the socket). When connected to the network, it should be highlighted in green or orange. If the connector is not lit, then it is damaged and this may be the reason for the lack of Internet.

Failure can also be caused by Withfight settings. Finding the cause of the failure is difficult, and it takes a lot of time to spend on it. Way out - creating a new connection.

On the pictogram network connection left-click and select "Network and Sharing Center". Then select the function Set up a new connection or network».

Then select " Internet connection” and then open “ high speed(with PPPoE)”, then enter your login and password(they are indicated by the provider at the conclusion of the contract) and select the button " To plug».

But this troubleshooting method is only possible if your Internet is connected to the PC using a cable directly, and not through router.

Having a second network. This happens when the user home network connected to the second network card. Then with the first connection to the network and there may be problems.

Here you need to know exactly how many network cards are on the PC. If one - then this solution to the problem excluded, and if there are two, then you need to turn off the second board. To disable the board you need to open Network Control Center and sharing and click on " Change adapter settings", after - disable his.

Another reason for failure is security system failure. Then the system may issue a connection error due to the incorrect operation of the antivirus and firewall. To troubleshoot, you need to disable all antivirus programs and reconnect.

Error 651 may occur due to incorrect operation of the built-infirewall. This may cause a network outage. To disable firewall operation open the menu " Start» and select the function « Control Panel". Then select " system and safety” and select from the list - “ Windows Firewall". In the new window select " Turn Windows Firewall on or off' and check the box ' Disable windows firewall ". Then exit the window and restart your computer.

Another one probable cause no network - problemWithprotocolTCP/IP. In order to troubleshoot the problem, the user must open an Internet browser window and on the Microsoft website download kb update 299357. After, run the program and wait for the system to update the protocols on its own. When the program ends - reload computer and try connecting to the network again.

The popular version of the lack of Internet connection - problemwork network board . This problem may occur due to incorrect operation of the drivers or outdated system. You can fix these problems yourself. The user is enough update drivers.

To do this, through the menu " Start» open « Control panel I" and in the search bar write the phrase " Device Manager". Looking for yours on the list network card and press " Update device drivers". Then we follow the prompts, basically agreeing with everything that the system will offer. After updating the driver, the computer should reload.

To restore the Internet, you can also swipe editing the registry. In order to fix the problem, you need to run the registry through the menu " Start". To do this, in the start we find the button Run or press the keyboard shortcut Win+R. In the window that appears, enter regedit and go to the register.
Opening the way HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters and create the parameter " EnableRSS', assigning it the value '0'.

You can fix the problem even easier by running the program CCleaner or TotalSystemCare and scan the system, then restart the PC.

Nevertheless, if none of these reasons eliminated the problem of the lack of the Internet, seek help from specialists.