The modem reported error 651, what should I do? Additional actions with the registry for server operating systems

One of the most common mistakes Windows connections 7 and Windows 8 - Error 651, Error connecting to a broadband connection or Miniport WAN PPPoE with the message text "The modem or other communication device reported an error."

In this article we will take a detailed look at all possible ways fix error 651 in Windows various versions, regardless of what provider you have, be it Rostelecom, Dom.ru or MTS.

First steps when error 651 appears

First of all, if you see the message "error 651 connecting to the Internet" or "connection failed with error 651", try a few simple actions, and try connecting to the Internet after each of them:

These are exactly the ones simple steps, which can help you not waste time and make the Internet work and the WAN Miniport PPPoE error disappear. Next, we'll look at advanced steps to fix error 651 that may help. experienced users in solving the problem.

Resetting TCP/IP Settings

The next thing you can try is to reset the TCP/IP protocol settings in Windows 7 and 8. There are several ways to do this, but the easiest and fastest way is to use the official Microsoft utility Fix It, which can be downloaded from http://support.microsoft.com/kb/299357

After launching the utility, the program will automatically reset the Internet protocol; all you have to do is restart your computer and try to connect again.

Additional information: Sometimes removing certain checkboxes in the properties of the PPPoE connection helps fix error 651. To do this, go to the list of network connections and open the properties of the high-speed connection ( Network and Sharing Center shared access - Changing adapter settings- RIGHT CLICK ON YOUR CONNECTION - Properties). Then, on the “Network” tab in the list of components, uncheck the following options:

1. Internet Protocol version 6 (TCP/IpV6) - in some cases it causes a network connection conflict, so disabling it sometimes helps in resolving error 651.

2. VirtualBox Bridged Networking Driver - for those who use virtual machine Oracle Virtual Box on your system, installation additional driver virtual network may cause a conflict with the current network connection, so disabling this option in the network adapter properties may help resolve 651.
3. For possible solution errors 651, try disabling all checkboxes that are not standard; these may include protocols of various antivirus firewalls, as well as embedded virus protocols. In any case, you can return everything back if disabling the options in the “Network” tab does not help fix your Internet connection.

Updating your computer's network card drivers

Also, updating the drivers for your device may help solve the problem. network card. Just download them from the manufacturer’s official website motherboard or laptop and install.

In some cases, the problem can be solved by removing the network card drivers you installed yourself and installing those that came on the disk with software to the network card (if available).
Also, after removing the network card drivers, you can try to allow the system to automatically install necessary drivers. To do this, you need to go to the device manager (right mouse button on the shortcut My computer on the desktop - Properties- on the left side of the window Device Manager). In the list of devices, in the section Network adapters find your network card, click on it right click mouse and select the first item "Update drivers...", then select " Automatic search updated drivers."

Additional information: if you have two network cards, then this can also cause error 651. Try disabling one of them in the device manager - the one that is not used (from the list of devices, select the unused network adapter, right-click on it, and select the option Disable).

Checking the hardware component

If none of the methods described above helps, before moving on to the "heavy artillery" type Windows reinstallation, try one last option.

1. Turn off the computer, router, modems (including the power supply).
2. Disconnect all network cables (from the computer's network card, router, modem) and check their integrity (if they are damaged anywhere). Also, if you or someone you know has LinkMaster, a small device for testing and “ringing” network cables, try using it to determine the integrity of the cable. Then reconnect the cables.
3. Turn on your computer and wait for it to boot.
4. Turn on the modem and wait until it boots up completely. If there is a router on the line, turn it on after that, also wait until it boots.

To summarize, we can say that error 651 is one of the most unpleasant moments for users working on the Internet. Its solution is possible using all the methods listed in the article, but if you have little experience in working with computers, you can safely call the technical support of your Internet provider. As a rule, specialists help to check in real time all the main options for the occurrence of error 651; in extreme cases, you can request a company specialist to visit your home.

operating room Windows system full of surprises. Today everything works fine, but tomorrow the computer produces a bunch of different errors that we didn’t even expect to hear about. If there are any problems individual programs Somehow you can come to terms with it, but problems with the Internet connection are very difficult to tolerate.

Today we will talk about a fairly common error that has the serial number “651” in the Windows system. The message says - “The modem or other communication device reported an error.” But we can only guess what error the device reported. Be that as it may, next we will talk about all possible (for the average user) ways to solve this problem. Let's begin.

The popular error 651 when connecting to the Internet in many cases occurs due to a failure of one of the communication equipment with which the computer works. at the moment. Therefore, the first thing to do is simply reboot your modem. This can be done using standard button shutdown located on the back of the device (usually). If there is no button or it does not work, simply turn off the device from the network and turn it on again. After this, it is advisable to restart the computer too.

While the equipment is rebooting, be sure to check network cable(or USB) coming from the computer to the modem - it must be inserted into its socket.

If this doesn't help, you can try another one easy option– recreate the PPPoE connection (if in your case it was used to connect to the network). You can do this by following the instructions below (let's take the process of creating a connection on Windows 7 as an example):

If error 651 appears again when connecting to the Internet, try to resolve it using more complex methods.

Resetting system network settings

The TCP/IP communication protocol is responsible for connecting a computer to the Internet or generally for its operation on any network. In some cases (perhaps due to the user's fault or even malware) internal settings this protocol gets lost. In this case, of course, neither the operation of the modem nor any network device cannot be guaranteed.

To correct similar problem A small program will help, which can be downloaded directly from the official Microsoft website at https://support.microsoft.com/ru-ru/kb/299357.

The program does not require installation or any operating skills. Just run it, follow the simple instructions, after which you will need to restart your computer. After the program exits, try connecting to the network again. If you do not have the opportunity to download this application, you can perform the operation of resetting the “TCP/IP” parameters yourself. To do this:

Didn't help? So, let's try the next option.

Reinstalling the network card driver

A driver is, simply put, a set of instructions for operating system about how to control a particular device connected to a computer. Whether it's a mouse, keyboard, webcam or network adapter, their operation is impossible without drivers. It also happens that the driver becomes damaged, after which the device stops working normally, producing various errors like “651”.

If this was the problem in your case, then we’ll try to fix it by reinstalling the driver.

Attention! To complete this step, you must have a driver disk on hand, which usually comes with motherboard. If you have a laptop, then such drivers should be on the hard drive. In any case, drivers can be downloaded from the website of the motherboard or laptop (netbook) manufacturer. You can also install them using various driver managers (for example, the program Driverpack Solution). The program can also be downloaded online.

In the century modern technologies Internet network plays vital role for humanity, but very often breakdowns and errors occur that block people’s access to World Wide Web. So, for example, when working with Windows 7/8, one of the most common errors when connecting is error 651. Of the more earlier versions operating systems from Microsoft, it is known under other digital values: 678 (XP) and 815 (Vista). Next we'll talk about how to fix error 651 when connecting to the Internet in various ways.

Connection failed with error 651

Error 651 appears most often when starting a connection via the PPPoE protocol in Windows 7 and 8. It is important to understand that such failures are very often not corrected by reinstalling Windows, because they are caused by a malfunction/error that occurred on the equipment that provides access to the network. Moreover, we are not always talking about the user’s devices, because problems can also arise from the provider. Let's look at the main reasons why error 651 may occur, how to fix them and other nuances.

RASPPPOE client crash

Windows services periodically do not work correctly, as a result of which error 651 may appear when connecting to the Internet, which can be eliminated by simply re-creating the access point.

All this is done as follows:

1. Open “Control Center” directly from the desktop.
2. Let's move on to the section with a list of connections available on the PC to remove what we need.
   
3. We select the connection we don’t need and delete it. The screenshot shows a point created automatically when connecting to the network via a router, but when directly inserting the Internet cable into the PC and manual creation connections, the “Delete” item will be active.
   
4. We return to the previous section to recreate the connection.
   
5. We carry out further actions, as shown in the screenshots.
   
   

We choose a high-speed PPPoE connection, because it is for this connection that error 651 occurs when connecting.

After entering the necessary points, you can use the new connection, but if the Internet is still blocked with error 651, then you should go to next method her corrections.

Docking two network cards on one PC

Often the user does not even suspect that two network adapter and both are functioning. If you connect to the Internet through both of them, then a malfunction is guaranteed. It is enough to disconnect the cable from the one that should not be used and everything will work.

Also, everything can be solved programmatically by deleting/disabling the connection that is unnecessary. The removal method has already been described above. unnecessary connection. Using the same algorithm, you should click delete/disconnect on the connection that is redundant. However, first you need to determine which one, and then the method of pulling out the cable is much simpler, because in this case you can deal with it through regular brute force. If there is only one card or disabling it did not help, then move on.

Blocked by antivirus software or firewall

Antiviruses and firewalls may be the very software that blocks access to the Internet and causes error 651. You can fix the latter by simply checking the specified fact and disabling all possible blockers. If indeed the problem was with them, then you need to take a closer look at the settings this software or contact a specialist installer.

Problems with the router

Today, various routers and ADSL modems can act as a router. Both types of equipment must be configured to properly connect to the Internet. You should immediately understand that all settings/configurations are stored in the memory of these devices, and not on the PC. If the router/modem was purchased after many years of use standard connection via a cable directly inserted into network card, then use more standard way Internet access is no longer needed. The old connection can be deleted using the algorithm mentioned above, and the new one will appear on its own and will be activated automatically when the router and PC start. Such a connection was discussed when describing the first method of eliminating a failure with deleting an access point.

There may also be a discrepancy technical characteristics router and those requirements that are necessary for correct operation in combination with the provider's equipment. The smartest thing to do to buy the right router is to contact a specialist who can also carry out the setup.

Problem with the provider

If none of the proposed methods worked, then you need to leave a corresponding request for repairmen from the company that provides the user with access to the Internet. Typically, some of the ways to fix errors will be suggested by the manager who accepts the application, but if the problem cannot be corrected telephone mode, then the technician will perform an on-site inspection. According to the standard, the equipment is first checked outside the client’s home, and only then the technician inspects the PC itself, the router and other elements used to connect to the Internet.

Error 651 in Windows 2003

Separately, it is worth pointing out a way to fix errors 651 in the Windows 2003 version, where it occurs due to the fact that the connection protocol is set to PPTP, which, naturally, does not correspond to the required PPPoE. To eliminate the error, you need to make some changes to system registry. You can enter it by pressing the “WIN” + “R” keys and entering the “regedit” command in the window that appears.

If the parameters exist, then it is enough to change their value to the one indicated above. At the end, we reboot the PC and check the functionality of the Internet. If the error is not resolved, then everything, again, comes down to calling a service technician.

From all of the above, it is worth remembering that reinstalling the OS is an extreme option. Must try all sorts of ways software settings, through which you can eliminate errors that have arisen, because Internet error 651 can also be eliminated in most cases. We wish you success in correcting the problems that have arisen!

When a computer or laptop writes at the most crucial moment that “the modem or other communication device reported an error,” most users are lost: they start calling the provider or installing a spare mobile Wi-Fi on the computer.

However this failure connection is not a serious problem, and in most cases you can fix the problem yourself. We will talk about what connection failure with error 651 means and how to fix a high-speed connection via wan miniport on Windows 7 in this article.

It should be noted that error 651 does not depend in any way on the Internet provider, and subscribers of byfly, Rostelecom, Ufanet and other well-known providers equally often encounter this problem.

Why does Windows display error 651 when connecting to the Internet?

This error number indicates that for some reason the connection of the modem (or other communication device) to the Windows OS of this computer carried out incorrectly.

As a rule, network error 651 occurs when:

• - there is no physical connection through the wan miniport (the network cable is damaged, the connector is broken, the PC’s network card, modem or switch is “burnt” due to voltage surges);
• - installed on Windows incorrect settings network connection (due to user inattention or as a result of a system failure);
• - are underway technical work on the provider side.

But in most cases this error Internet failure arises as a result of incompetent user intervention in the operation of the system; accordingly, he can establish an Internet connection on his own.

How to fix connection error 651?

Understanding what it means this number mistakes, first of all, carry out standard diagnostics, which solves most computer problems:

• - Restart your computer/laptop;
• - Turn off the power to the router or modem for 10 minutes, then carefully plug the communication device into the mains and wait until it is fully loaded;
• - Check the integrity of the network cable and whether it is correctly connected to the network card connector of your PC;
• - If your computer/laptop is equipped with several network cards (Ethernet connectors), try connecting through each of them one by one;
• - If in addition to this PC you have another communication device (laptop, smartphone, etc.), or have several installed on your computer windows versions– check your Internet connection from a different OS;
• - In the Windows Control Panel, uninstall the drivers for your network card and install them latest version- from disk, or by downloading software on the manufacturer’s official website.

The network cable is working, but the modem reported error 651 - what should I do?

If there are no connection failures on other devices, then you can safely celebrate your first victory - the modem is working and your provider is faithfully supplying you with paid Internet.

- When connected via ADSL

If the DSL link lights up stably (accordingly, the modem connection via the network cable is working properly), then should check:

VPI/VCI parameters (which you can find out from your provider’s technical support)

Bridge connection type

If connection failure with error 651 occurred after you ran a cable from the modem to the router and created home network wifi - existing high speed connection needs to be removed. The reason is that the router and modem transmit information using different protocols and often “conflict” with each other.

-At pppoe connection via router

To fix connection failure on Windows 7:

To do this, go to “Control Panel> Network and Internet> Network connections", select the section "Create a new connection or network > Internet connection > PPPoE" and in the open window enter your credentials from the agreement with the provider. Make sure you enter the parameters correctly, because connection failures often occur due to typos in the login/password field.

Try updating raspppoe.sys - system file Windows 7, which manages connections via the PPPoE protocol. You can copy the file from a nearby computer (if it does not experience communication error 651) or download it from here - “http://goo.gl/oQytf2”. The raspppoe.sys file is located in the “C:\Windows\System32\Drivers” folder - find it, rename it (but do not delete it - in case you have to put it back) and copy the downloaded file to the directory. Restart your computer and try connecting again.

If none of the methods helped you, leave a request indicating the error number in the service technical support your provider.

Any user faced with system error, and even more so when the connection fails with error 651, he experiences bewilderment and confusion, not understanding the procedure for action in such situations.

When the message “a modem or other communication device has reported an error” appears on the screen, careless operators and computer equipment manufacturers come to mind.

In fact, most errors can be fixed on your own and are not critical. To resolve an Internet connection failure with error 651, you need to carry out several simple operations with a preliminary determination of the cause.

You should know that error 651 in no way depends on the provider; any client of Rostelecom, Dom.ru, MTS, Intersvyaz and other providers can encounter a similar situation.

Why does the operating system report that the connection failed with error 651

Error 651 appears when incorrect operation modem ( wi-fi adapter), connection failure with the provider's server.

The most common reasons are:

• Violation physical connection(cable damage, connector broken, network card, modem faulty).
• The operating system is set to incorrect settings for network connection (possibly in case of system failure or user error).
• Carrying out preventative work on the provider's lines.

But the key, and most common, reason is incorrect user operations with system settings. This means that elimination is subject to the user himself.

Procedure to identify the cause

First, you should carry out a small diagnostic, which can eliminate the error at this stage:

Restart your computer or laptop.

Turn off the power to the router or modem for 15 minutes. After a pause, turn on the device again, checking the connectors. You need to wait until the device boots up and logs into normal mode work.

Inspect the cable connecting the router/modem to the computer for damage. Pull the plug out of the network card connector and insert it back until it locks.

If you have 2-3 network cards with Ethernet connectors, it makes sense to check the operation of each by moving the plug and observing changes in the network status on the indicator located on the screen near the clock.

Check the connection to the router using Wi-Fi channel using a tablet or smartphone.

In the Manager Windows devices Locate the network card, remove the device, and update the system configuration. If the network card is detected again, install the latest version of the drivers by downloading them from the manufacturer’s official website.

The modem reports error 651 with a whole cable

If you managed to connect to the Internet from other devices and access, for example, a page, you can already congratulate yourself: the router or modem works stably, and there are no restrictions from the operator.

To resolve a system error:

• When connected via ADSL

With stable signals LED indicators on a DSL device, you need to look at the modem settings:

• VPI/VCI parameters (for this you should contact the operator’s call center).
• Bridge connection type.

Attention: error 651 may occur due to the fact that cable connection router and modem with subsequent creation Wi-Fi networks– you need to delete the connection. When transmitting information, these devices often use different protocols and can lead to conflicts.

• At pppoe connection

If Win7 is installed:

— create a new connection. In the Control Panel, find the “Network and Internet” section and select “Network Connections”. Next, click “Create a new connection or network” - “Internet connection” - “PPPoE”. A data entry form will open. account, usually they need to be found in the agreement with the Internet provider. When entering, you should pay attention to the layout and language used, because... The main reason for failures is the presence of erroneous characters in the login and password.

Update the raspppoe.sys file, which contains the function of managing connections via this protocol. The file has the following location path “C:\Windows\System32\Drivers”. Open the folder, find the file, give it a different name. It is not recommended to delete, you can return it by reversing the renaming procedure previous settings. Copy the file of the same name into the selected folder, which can also be found on another computer (provided there is no error 651 on it either). Reboot the operating system and try connecting again.

Only in this case, if you were unable to resolve the connection failure with error 651 on your own, you should contact the technical support of your Internet provider and request a check or call a specialist.

Connection failure with error 651: fix in Windows 7,8,10