What to do if there is a connection error. Errors when creating a VPN connection. Driver problems

Manually editing the Windows registry to remove invalid Error 638 keys is not recommended unless you are a PC service professional. Mistakes made when editing the registry can render your PC inoperable and cause irreparable damage to your operating system. In fact, even one comma placed in the wrong place can prevent your computer from booting!

Because of this risk, we highly recommend using a trusted registry cleaner such as WinThruster [Download] (developed by Microsoft Gold Certified Partner) to scan and repair any Error 638-related issues. Using a registry cleaner [Download] you can automate the process of finding corrupted registry entries, missing file references (such as those causing the %%error_name% error), and broken links within the registry. Before each scan, a backup copy, which allows you to undo any changes with one click and protects you from possible damage to your computer. The best part is that fixing registry errors [Download] can dramatically improve system speed and performance.

Warning: If you are not experienced user PC, we DO NOT recommend manually editing the Windows registry. Using Registry Editor incorrectly can cause serious problems and require Windows reinstallation. We do not guarantee that problems resulting from incorrect use of Registry Editor can be corrected. You use Registry Editor at your own risk.

Before manually restoring Windows registry, you need to create a backup by exporting the part of the registry associated with Error 638 (for example, Windows 8):

1. Click on the button Begin.
2. Enter " command" V search bar... DON'T CLICK YET ENTER!
3. While holding down the keys CTRL-Shift on your keyboard, press ENTER.
4. A dialog box for access will be displayed.
5. Click Yes.
6. The black box opens with a blinking cursor.
7. Enter " regedit" and press ENTER.
8. In the Registry Editor, select the Error 638-related key (for example, Windows 8) that you want to back up.
9. On the menu File select Export.
10. On the list Save to select the folder where you want to save the backup Windows key 8.
11. In field File name Enter a name for the backup file, for example "Windows 8 backup".
12. Make sure the field Export range value selected Selected branch.
13. Click Save.
14. The file will be saved with extension .reg.
15. You now have a backup of your Windows 8-related registry entry.

The following steps for manually editing the registry will not be described in this article, as they are likely to damage your system. If you would like more information about editing the registry manually, please check out the links below.

Main mistakes:

If the registration of a computer on the network is successful (the connection is established), but no page opens (inaccessible), then you first need to check the balance of your personal account. If the balance is positive, then you should contact.

If the connection is made through a router:

First of all, reboot it by turning off the 220V power for one minute and turning it on again. If the connection does not occur, then the router’s settings may have been reset or it may have failed. Make a direct connection - connect the cable directly to the computer, use a previously created one or create a new one PPPoE connection, asking for login and password. Next, proceed according to the paragraphs with descriptions Errors 651, 691. If a direct connection (without a router) occurs, then you need to check the functionality and settings of the router yourself or with the help of a specialist.

If the connection is made directly (the Internet cable is connected directly to the computer):

Error: 629 "The connection was interrupted by the remote computer"

This error occurs if a PPPoE session has already been created and you are trying to create another session. This happens when the previous session is terminated incorrectly, when there is an open connection on the server.

Solution:

Wait at least two minutes and try to connect again. And don't forget to keep your internet login details secret.

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

Solution:

1. The LAN cable may not be connected or there may be poor contact in the connectors.

2. It may not work correctly network adapter your computer. To resolve the problem, you may need to reinstall the network adapter driver or replace the network adapter.

3. There may be a cable break or the access server is disconnected.

4. The network adapter may be disabled in Device Manager. Enable the network adapter:

For Windows 7, 8, 10: (Start -> Control Panel -> Device Manager -> Network Adapters -> right-click on the Ethernet controller adapter -> select Enable). Try connecting again.

For Windows XP:

5. Check the local network connection:

For Windows 7, 8, 10: (Start -> Control Panel -> Network and Sharing Center shared access-> Change adapter settings -> right-click on Local Area Connection -> select Enable).

6. Disable antivirus program or firewall.

Error: 678 "The remote computer is not responding"

Solution:

1. Check the settings of your antivirus program and firewall/firewall (if available).

2. In Device Manager, enable the network adapter.

3. Check the connection of the LAN cable and the contact in the connectors.

4. If the network card is not working properly, you may need to reinstall the driver or replace the device.

5. There may be a cable break on the line or the access server is disconnected. Similar to error 769.

Contact if the problem is not resolved by yourself.

Error: 691 (619) "Access is denied because the user name or password is not valid on this domain"

Solution:

1. Make sure it's turned on English layout keyboard and “Caps Lock” is disabled on the keyboard. Please enter your Username and Password carefully.

2. You may have connected to the Internet, but the connection was disconnected incorrectly - you need to wait a few minutes before reconnecting to the server.

3. Remember if you gave your credentials to friends/acquaintances; perhaps you have already connected to the network under your login.

4. For Windows XP sometimes it is enough

5. Call if the problem persists.

Error: 711 "The Manager service could not be started remote access»

Solution:

1. Right-click on the My Computer icon, select Manage. In the window that opens, select services and applications => services and activate the Telephony and Remote Access Connection Manager services.

Error: 720 "The connection attempt failed because the remote and local computers were unable to negotiate PPP control protocols"

Solution:

1. Check the box “Internet Protocol TCP/IP” in the properties of “Local Area Network Connections”;

2. Run an integrity check and restore system files. To do this, click “Run..” in the Start menu and type sfc /scannow

3. Reinstallation of the driver is required network card, if it doesn’t help, then on your computer.

Error: 734 "The PPP link control protocol was interrupted"

Solution:

1. In the Network Connections folder, right-click the connection you are using. Select the Properties command and open the Security tab. In the Used when scanning list, select Unsecure password.

Error: 769 "The specified destination is unreachable"

Solution:

1. Click the Start button and select Control Panel.

2. In Control Panel, click the Performance and Maintenance icon, and then click the System icon.

3. In the System Properties window, open the Hardware tab and click the Device Manager button.

4. In Device Manager, click Network Adapters.

5. From the Action menu, select Enable.

6. Exit Device Manager.

7. Click the Start button and select Control Panel.

8. In Control Panel, click Network and Internet Connections and then Network Connections.

9. In the Network Connections window, select Network Setup Wizard in the Network Tasks group, and then follow the wizard’s instructions.

10. After following all the instructions, restart your computer.

If the problem persists, call .

Error: 815 (windows vista)/651 (windows 7.8) "A high-speed connection cannot be established because the remote server is not responding"

Solution: See errors 678 and 769.

Other errors:

Error code 600, 601, 603, 606, 607, 610, 613, 614, 616, 618, 632, 635, 637, 638, 645:"A Windows internal error has occurred."

Solution: Restart your computer. If the error persists, check your computer for viruses. Remove recently installed programs, or undo recent changes to Windows settings, if there were any.

Error code 611: "Internal configuration Windows network incorrectly configured."

Solution: Restart your computer and make sure that the local network functions normally on your computer. If the error does not disappear, then contact the service technical support.

Error code 612: "The internal Windows network configuration is not configured correctly."

Solution: Similar to error 611. In addition, the error may be caused by a lack of resources (memory) on your computer. Try closing running programs.

Error code 617: "Windows is in the process of connecting to the Internet, or an internal Windows error has occurred."

Solution: Wait a few minutes. If the connection is not established and the error persists when connecting again, restart your computer.

Errors when opening website pages:

Error: 404 "Page not found"

There was an error in writing the web page address. Check his spelling.

The page or site may be temporarily unavailable or deleted altogether.

Error: 403 "Access denied"

Access to a protected resource is prohibited.

Error: 503 or 504

The site is in debug mode.

Help with computer problems can be found here.

There may be a situation when, when connecting to the Internet via VPN connection In return for access, we receive messages with error 691 and a suggestion to try connecting again.

Most often, the reason for such a message is an incorrect login and password entered by the user for access or incorrectly entered settings.

To solve this problem, you should try the following steps. We check the correctness of the entered login and password, keyboard layout and character case (CapsLock may be enabled).

In the network connected, check that the IP address you entered is correct; it matches the specified provider.

Check whether the “include domain when logging into Windows” feature is disabled.

If the above is configured correctly and the error continues to occur, you should contact your Internet provider.
First of all, you need to check if you forgot to pay for the Internet. After all, error 691 tells us that all connection settings are correct, and the problem lies precisely in the user data.

More often, those who have only recently connected to the Internet from a certain operator and have completed the first free or initially paid month of use find themselves in this situation. Payment for the Internet occurs in different ways; as a rule, such data is written in documents from the modem. If not, then just call your provider.+

Incorrectly entered data (password or login)

Another common reason is an error in entering your login or password. Try entering your details again. Don't forget to check if you have pressed the "Caps Lock" button, which allows you to write in capital letters without pressing Shift. The same applies to a space and changing the input language, for example, if you wrote Russian “e”, which should be entered as English. If all else fails, call your provider and find out if they are experiencing any problems. Also sometimes restarting the computer and waiting a little for 30-40 minutes helps.

Firewall problem

In rare cases, a firewall may block the connection. Open Control Panel and select the Windows Firewall program. Next, check to see if the checkbox for allowing the firewall to block all incoming connections is checked; if so, uncheck it. You can also disable the firewall, but you only need to do this for a while to find the cause of the error.
how to fix error 691 when connecting to internet windows 7

Error 691 when connecting to the Internet Windows 7

Connection via PPPoE

If you are connecting to the Internet via PPPoE, the cause of the error may be incorrect VPN server data. To trust the VPN, go to “Network Connections” and open the properties of “ELNET_INTERNET” by right-clicking on it and selecting the desired line. In the properties, check if there are any errors in the entered data, in particular the IP address.

Error number 691 indicates that the user is using incorrect login credentials to log into the network. You can check this at the stage of establishing Internet access. If we talk in simple words, then error 691 indicates that the Internet provider server cannot correctly identify given user.

Causes of error 691 and how to resolve it Error number 691 can occur for many reasons. For example, you may have entered your password or username incorrectly. You may not have enough funds in your account or this login already authorized on the server. Quite often, the user experiences error 691 when trying to create a new connection. It may be due to entering an incorrect password or login.

To avoid this problem, it is better to first enter the user's registration information in a simple text editor, and then simply copy them in the authorization window. Error 691 can also be caused by a negative balance. Is being decided this problem quite simple: you just need to check your account and top it up if necessary. Today, most Internet providers allow you to log into Personal Area user without authorization.

Some people have to call technical support to find out their balance. Error 691 can also be issued to the user if the previous session was not closed. This may happen due to an incorrect Internet connection. Just wait 5 minutes and try connecting again. If you are still unable to establish a connection, try calling your operator’s technical support service. An important point: in the Windows 7 operating system, error 691 is not always shown.

Instead, quite often an error with code 692 appears. If the error message occurred while checking the password and username, you need to try the steps that have already been described above. Errors with codes 678, 651, 825 As mentioned earlier, error 691 is far from the only error that users encounter when trying to establish a connection to the Internet. There is another fairly common problem, the cause of which may lie in the lack of response from the server.

The error code may differ depending on different versions operating system. Users of WindowsXP OS will encounter error number 678, Windows Vista users with code 815, and Windows 7 users with error code 651. Causes of error 678, 651, 815 and how to resolve it This error can occur for many reasons. These include: - problems on the provider’s side; - cable break; - errors in the operation of the anti-virus program or firewall; - incorrect device settings. Video: Error 720 Unable to connect to the Internet.

Connection error how to fix If an error with code 691 in most cases can be resolved on your own, then if an error with codes 678, 651, 815 appears, the user can simply try to check the operation of the subscriber device and the integrity of the cable inside his home, as well as disable the firewall and anti-virus program . Important point: check if it is connected to your computer network cable.

Even such a simple thing can cause an error with the number 678, 651, 815. Error code 619 Different Internet providers use different technologies subscriber connections. The reasons for the occurrence of error number 619 will depend on the technology used. As a rule, users who connect to the network using PPPoE detect it when they enter an incorrect password or login. Subscribers who use 3G or 4G to connect to the Internet may encounter error code 619 if there are problems with the port or modem.

In this case, you may be advised to reinstall the driver or connect the device to a different connector. Some subscribers prefer to connect to the Internet using a VPN. Error code 619 in this case may indicate incorrect security settings. To fix the problem, you can try setting the “Used during scan” option in the “Security” tab to the “Secure password” position.

This type of connection is used by subscribers home internet from Beeline. Error with code 769, 800 If such an error occurs, the first thing you need to do is check for an active local network connection. To do this, go to the Start menu and in the Network Neighborhood section, select Show network connections.

If you see that icon local connection is grayed out, you need to enable it using the context menu. If there is no connection to the local network, the problem may most likely be related to the driver. To reinstall the driver, you can use the disk included with the equipment. The driver can also be downloaded from the official website of the manufacturer.
In most cases this error occurs due to user inattention when setting up the modem and entering a login/password when connecting to the Internet.

So, the following reasons are possible that Windows displays the message “in remote connection denied":

An incorrect login or password is entered (as the most common cause of system failure with code 691);
- The PPPoE protocol server (or VPN server, depending on the established method Internet connections);
- Incorrect connection settings are set;
- Error in the settings of the “Secure Password” function.
Moreover, this connection failure does not depend on the operating system installed on it (windows xp, windows 7, etc.) and the type of PC connected to the Internet

How to fix 691 connection error?
If, when connecting to the Internet, the modem gives you error code 691 (and such problems did not arise before), then the configured login or password may have failed. Restart your PC and enter the data manually (you can find the login/password provided to you on the last page of the agreement with your provider). Don’t forget to check if “Caps Lock” is activated and if the language you plan to enter information in is in the correct language.

Also, if 691 connection errors occur, it is recommended to check your network settings. To do this, go to the “Control Panel” and select the “Network Connections” section there.

Be sure to check the security settings set there: check the box next to “Request login and password”, as well as “Show connection progress”.

For some providers, this error may occur if there are not enough funds in your account to use this service.

Try going to the provider’s website (usually it operates over a local network and is accessible even when “remote connection is denied”) and check the balance in your account using your personal account.

Also this code errors may occur after installing new equipment: with some Internet providers, it is advisable to indicate the network equipment you are using in your personal account on the provider’s website.

As a rule, the listed measures are enough to stop connection error 691 from bothering you, otherwise we recommend that you seek qualified help from your provider.

Error 691 when connecting to the Internet: how to fix it?

Most likely we will be right in the truth of the statement that modern life without all-encompassing digital technologies would be much more difficult. And that's putting it mildly. At the same time, an unexpected error 691 when connecting to the Internet can occur to almost any of you, dear reader, which essentially makes the user defenseless, depriving the latter of the opportunity to take advantage of the unlimited resources of the global Network. However, you will learn how to fix this kind of error yourself right now. Useful material is waiting for you!

Wired and wireless internet technology: the reason for the missing Internet connection
In general, it makes no difference exactly how the user accesses the global network Internet. We will also keep silent about acceptable speed and desired comfort during web surfing.

If the error we are considering occurs, you need to pay close attention to the fact inherent in a reliable connection: whether the rule of “tight fixation” of the connecting elements of the Internet cable is observed, and you also need to consider the question: whether the power cord you are using is (technically) working. If the cable is not inserted into the RJ-45 computer connector at all or the connected cord is mechanically damaged, then the occurrence of error 691 is a banal inevitability!

So, we look to see if the Internet cable is connected correctly, and also pay attention to the reaction of the OS at the moment of connecting/reconnecting the power cord. If you see that the computer reacts to a physical connection, we proceed further (about laptop problems associated with wireless connection to the World Wide Web can be read in this article).

Destination #1: Control Panel menu
We can bypass the overly long-running scenario of finding the section we are interested in, “Network and Sharing Center...”. According to the picture next to it, click on network icon(right mouse button) and select the desired object from the context list.

Next, follow the “Change adapter settings” link, which is located on the left side of the work area of ​​the settings window that is called up.
Now activate the “Ethernet” or “Local Area Connection” shortcut - double-click the left button of the manipulator.
Is the error still there? Use the algorithm of actions from the next section of this article.

Checking the correctness of recording the connection data used
If error 691 occurs, you need to make sure that the login and password issued to you by your provider is correct.

You can do this as follows:

When trying to connect, enter a valid login and password in the connection service window.

Carefully fill in the appropriate fields, taking into account the case of the keys (this means the input language, as well as the characters used - uppercase/capital letters).
Try connecting again - “Enter”.
In some cases, it makes sense to check the IP settings of your network adapter:

Right-click on the connection shortcut again.
From the drop-down list, select “Properties”.
Next, double-click on “IP version 4 (TCP/IPv4).
Make sure that the values ​​of the addresses used correspond to the necessary communication parameters (data issued by your provider).

In conclusion

So, now you know what error 691 is associated with and what you should do to fix it. And yet, if for some reason you were unable to establish an Internet connection (the methods described above did not help...), report the technical problem to your provider. Without any doubt, they will help you solve your problem. Stable Internet connection to you, dear reader, and only high-speed traffic.

Error 691 and others. Problems connecting to the Internet and how to solve them
Many users sometimes encounter errors when connecting to the Internet. This may be caused by problems on a specific computer or malfunctions on the ISP side. The error number allows you to find out the cause and find a solution without the help of operator specialists.

The most common mistakes
There can be quite a lot of them. Most of them are related to incorrect user settings. Most often, subscribers of providers encounter the following errors: 691, 678, 619, 769, 800. Each of them has different reasons. At the same time, many can be eliminated with your own hands, without turning to your provider for help.

Important! If you cannot solve the problem yourself, you need to call technical support.

Error 691

Perhaps the most common Internet connection error is 691, which indicates that the username or password is incorrect. It appears at the stage of checking registration data. Simply put, the error means that the provider's server was unable to correctly identify the user, or he was denied access to the network.

Causes of error 691 and solutions
In fact, error 691 when connecting can occur due to a fairly large number of reasons. Among them:

the username or password is entered incorrectly;
negative balance;
The login is already authorized on the server.
Very often, when creating a new connection, users experience error 691 due to an incorrect login or password. In order to avoid this problem, it is recommended to first type the registration data in a notepad and copy it into the authorization window.

A negative balance with a number of telecom operators also leads to error 691 appearing on the user’s screen. The problem in this case can be solved simply by checking and topping up the account if necessary. Many providers allow you to log into your personal account without authorization on the server, and for some you will have to call technical support.

When trying to turn on the Internet, error 691 is given to the user, also provided that the previous session has not been closed. This happens quite rarely when disconnected from the Internet incorrectly. Just wait 5-10 minutes and connect again. If the connection continues to occur, then you should call technical support operators.

Important! In Windows 7, connection error 691 is not always shown. Very often, code 692 appears instead. Therefore, if an error message appears while checking your username and password, you should also follow the steps described above.

Error 678/651/815
Error 691, as mentioned earlier, is far from the only one that users encounter when trying to connect to the Internet. Another common problem involves the server not responding. The error code may differ in different versions of the operating system. In windows XP it will be 678, in Vista - 815, and windows users 7 will see a message with error number 651.

Causes of error 678/651/815 and its elimination
Error 678/651/815 has a huge number possible reasons. Among them:

cable break;
problems with the provider;
errors in the firewall or antivirus;
Incorrect configuration of the subscriber device.

If error 691 in most cases can be resolved independently, then when a message with code 678/651/815 appears, the user can only disable antiviruses and firewalls, and also check the cable inside the apartment and the subscriber device (router, optical terminal or modem) if present .

Important! Carefully check whether the network cable is connected to the computer. This elementary thing is the most common cause of errors 678/651/815.

Error 619

The technology for connecting subscribers differs slightly between different providers. The reasons for the appearance of error 619 depend on this.

Users connecting using PPPoE can usually detect it due to insufficient balance or incorrect username and password. This type of connection is typical for the following operators: Rostelecom, Dom.ru and a number of others.

Subscribers using mobile connection to the Internet via 3G/4G provided mobile operators, you may see a message with code 619 due to problems with the USB modem or computer port. In this case, you may be advised to connect the device to a different connector and reinstall the drivers.

Clients of some networks connect to the Internet through a VPN. In this case, error 619 reports incorrect security settings. In the properties of the Internet connection on the “Security” tab, you must set the “Used during verification” option to the “Secure password” position. This type of connection is used, for example, by home Internet subscribers from Beeline.

Error 769/800

Windows XP users with problems with drivers or with a local network connection to the network card will receive a message with code 769, and those who have Vista installed will receive a message with code 800. First of all, you need to check that the local network connection is active. This can be done in the Start menu in the Network Neighborhood section, selecting Show network connections or by accessing the Network and Sharing Center. If the local connection icon is gray, then you need to enable it using context menu.

If there is no local network connection, then the problem lies in the drivers. They must be reinstalled from the included disc or downloaded from the manufacturer's website.

Other errors
When connecting to the Internet, users may receive messages about other types of errors, but they are quite rare. It is quite difficult or even impossible for the user to eliminate some of them without the help of a specialist.

Let's look at other errors that often appear when connecting to the Internet, and ways to solve them:

Error 734 means that the PPPoE protocol has been terminated. As a solution, you can try to recreate the connection.
Error 735 means that an incorrect IP address is being used to connect. In the network connection settings, you must specify that network address you need to receive it automatically, or enter the correct parameters from the agreement with the provider.
In any case, if you cannot fix the problem yourself, you need to call technical support. A company specialist will suggest possible causes of errors and ways to eliminate them. And if necessary, he will also submit a request for installers to visit you.

What does error 691 mean when connecting to the network?
The accessibility of the Internet directly relates to the growing popularity of various electronic devices. Therefore, there is no greater disappointment when a person has spent a considerable amount of money on purchasing the necessary equipment, and the message “error 691 when connecting to the Internet” appears before his eyes.

By the way, not a single user is immune from such a nuisance, no matter what provider he chooses. Which confirms big number similar requests for help: error 691 Beeline, Rostelecom and so on.

Don’t get nervous ahead of time, since very often the reason that causes a connection failure can be treated quite easily.

Treatment methods
It may not be strange, but the first thing to do in such a situation is to check the account status. Especially often, such a surprise occurs among people who use monthly tariffs and simply forget about the date when they should make the next replenishment. The result is code 691 when connecting to the Internet in Windows 7 or in any other version of the operating system from the most famous manufacturer of such software.

The next reason why an unpleasant message appears when connecting to the Internet on Windows 8, 7, 10, etc. is that you entered personal data incorrectly. That is, login and password. Again, the solution may lie in setting the correct keyboard layout. For example, a person’s login is written in Russian letters, but should be written in English.

Problems when trying to connect via PPPoE may be caused by incorrect VPN server settings. What does it mean that an error occurs already at the first stage of the process being launched.

The fix is ​​this:

Go to the “Network Connections” menu.
Find the created connection and open the submenu by right-clicking on the mouse.
Go to the “Properties” folder.
Double-check the correctness of all data entered there.
The last option for such error 691 to occur may be that the firewall is not working for some reason. Therefore, before trying to access the vastness of the global web, it is recommended to check the functionality of this application, which is also very easy to do:

Go to the control panel, from where you go to the “Services” menu.
You need to find the application and launch its settings.
Find the “status” line and enable this important program.
Try to go online.
Usually these options are quite enough to cope with error 691, a seemingly complex and irreparable situation.

Error 691 when connecting to the Internet - what does it mean, how to fix it
IN modern world connecting to the Internet is no longer entertainment, but has become a real necessity. Politics, trade, services and education use the virtual network for work. The installed Internet allows you to keep abreast of the latest events, advertise products, and order them directly from the office.

Online, you can pay for services, purchase and purchase any goods, communicate with friends, and find new acquaintances. Installing the Internet is not particularly difficult. But errors may occur. Some of them can be corrected by the user themselves, without turning to specialists.

The message "Error: 691: "Access is denied because the user name or password is not valid on this domain" indicates that you cannot continue connecting to the Internet. This is a kind of signal to the user that something is wrong with the connection.

see if the router or modem is connected to the electrical network (if the plug is plugged into the outlet). Take the time to check the condition of the network cable to see if there are any breaks or damage. This is especially true if there are curious animals in the house. Eliminate the possibility of disconnecting from the computer - pay attention to the network card slot;

If the cable connecting the router or modem to the computer is in perfect order, the modem is connected to the network, then you should brainstorm possible reasons. Correction is possible without the involvement of specialists, on our own. The main thing is to understand the reason for its appearance.

Causes
If during the connection process a message appears on the monitor screen stating that access is denied due to an invalid username and password, you may have done something wrong when entering the username and password;
Sometimes such an error appears even when the registration data has been entered correctly. In this case, you need to inquire about the state of your personal account, and more specifically, how much money is there. Many providers suspend the provision of services if the balance is zero;

If a connection has already been made with the same name and password, you will not be able to connect. The error code may vary between vendors. But for most it is 691.

Fixing the problem

Solving the problem is possible in several stages. Sometimes one step is enough to create a connection, but be prepared for the fact that a solution to the situation will not be found immediately.

First of all you need:

check your personal account balance. You can do this by calling your provider's technical support service or logging into your personal account from a different IP address. The phone number can be found in the documents provided by the provider;
Check that the registration data – username and password – is entered correctly. Look them up in the contract. Be sure to pay attention to the keyboard layout, ensuring that the letter “o” is not replaced by a zero. Pressing the CapsLock key changes the keyboard layout by changing case. Don't forget this;

To save yourself from mistakes in the future when typing your name and password, create text file. In the future, when you resume the connection, you will only need to copy the data from the file into the connection program window.
Pay attention to the presence of spaces when entering characters. Are there any extra ones before the first character of the password? This is easy to check: place the cursor in front of the first character and press the Backspace key. If there are spaces, they will be erased. Also check the username you entered.

You should make sure that the VPN server you entered is correct. To check, open Network Connections in Control Panel. When you right-click on your connection, select Properties. There you will find the IP address of your computer. Check its value with that specified in the contract;

If finding a place where you can look up the IP address is difficult, try looking at the sequence of actions through the built-in Windows help.
If your computer has an operating system installed windows system 8, you can do the following:

In the data entry line in the Start menu, enter ip;
Select View from the drop-down menu network connections;
By selecting View network connections, you are taken to the page for accessing your connections.
select the one you need and see the IP address of your computer.

It is important to know that setting up an Internet connection can only be done with a network cable connected to the computer. Working via Wi-Fi is not possible in this case. As a rule, among the connections that you will see in the window, you should select Ethernet;
check if it works windows firewall. There are situations when turning it off prevents the establishment of a connection to the Internet;

You can only determine whether a connection has already been made with your registration data by calling the technical support service. In this case, the operator will suggest a solution to the problem. You may have to invite a master.
At one stage, you will definitely continue to connect to the Internet. If this does not happen, contact technical support.

A sudden cessation of the Internet does not allow you to complete your planned activities - relax or work, since modern services and games are firmly tied to the Internet. The description of the most common errors collected in the article will help you find a solution and get the Internet working again.

Before you dive into solving the problem at hand, you need to perform a basic check. Recommendations apply to all errors, and often allow you to solve problems that arise with a lack of Internet connection.

1. Checking balance. Make sure there are enough funds in your account to use the service. Sometimes providers change the cost of the tariff without prior notice, payment systems do not transfer funds on time, and a failure occurs when the provider withdraws money from the account.
2. Check that your login and password are correct. Many companies connect the Internet via PPPoE and provide the subscriber with prepared authorization data. Symbols are often easily confused due to the font, and some letters are not printed. Check with your provider for information. Rewrite the data in a text editor in advance; when copying, make sure that you do not include any spaces. Also make sure to select the entire text and not highlight additional characters if there is additional information in the file.
3. Ensure that the cables are connected correctly and tightly. Connect the wires carefully, which is important if you have routers or splitters. Install the cable tightly to avoid disconnection.
4. Don't rush into radical decisions. Often “specialists” working for the provider recommend reinstalling operating system, while the problem was solved by simply restarting the computer. Re-do previous solutions to problems. If the problem cannot be resolved, reinstall the OS.

If the article does not solve your problem or the methods described do not solve the problem, contact your provider.

Error 619

Reason 1: Incorrect security settings

1. Open network connections.
2. Select connection properties.
3. Click on the “Security” tab and check the settings.

Reason 2: The network card connector is not working or is disabled

Check the functionality of the network card in Device Manager. Make sure the card appears in the list of installed hardware. Install or reinstall network card drivers.

Error 629

Reason 1: session started

Often, when connecting, a double session launch occurs, for example, the dialog box froze and you clicked connect twice. Or the previous session was closed incorrectly. Reconnect after 3-5 minutes or restart your computer.

Reason 2: TCP/IP protocol parameters are not set or reset

Check the IP address and DNS server settings. Sometimes the values ​​are set incorrectly or are reset when system error. Also check that your login and password are correct.

Error 651

Usually the problem occurs due to problems with network equipment - a modem or router. Sometimes due to a software or hardware failure of the network card. Therefore, it is necessary to double-check the functionality of network devices. Details are described in a separate material available at.

Error 678

There is no connection between the computer and the provider's equipment.

Reason 1: malfunction of the provider’s equipment

Contact your Internet provider and find out the reasons for the lack of network access. Check to see if any repair work is being carried out or if it is possible to remotely check the integrity of the network cable.

Reason 2: Network card/connector failure or malfunction

During power surges or thunderstorms, the network card connector or the entire module burns out. If possible, install PCI or USB network card and check the connection. Often the problem is solved by reinstalling the drivers.

Reason 3: blocking by antivirus or firewall

Pause the built-in or installed firewall, as well as the antivirus. Review program settings. Sometimes setting a high level of protection leads to blocking of outgoing and incoming requests.

Reason 4: presence of viruses or OS software failure

Restart your computer, check the system for malware. Some Trojans deliberately block access to the network.

Reason 5: Router failure or breakdown

Connect the network cable without a router, check the Internet is working. If the connection is established, the equipment is probably faulty, broken, or the settings are lost.

Error 691

Usually the problem occurs when you enter your username and password incorrectly. After a couple of unsuccessful attempts, the provider blocks account for a certain period. You need to check the entered data and try again later, after 30-60 minutes, or contact your provider.

Read more about how to solve error 691 in our separate article.

Error 711

The problem occurs when one or more services that are used to connect and maintain the Internet are not active on your computer.

1. Open the System and Security section in Control Panel.
2. Next is the “Administration” section.
3. Find and open Services.
4. Find four services one by one:

1. Enable broken services. If the service is active, replace "automatic" start with "manual" start. Make sure you are using an administrator account that has the rights to change the state of services.

Error 718

Reason 1: incorrect login or software failure when establishing a connection

Typically, a notification appears when an incorrect login is entered, or the program responsible for the connection is malfunctioning. Therefore, you should double-check the correctness of the entered data, taking into account the case and keyboard layout.

Reason 2: The firewall is blocking the connection

It's unlikely, but it's worth checking your firewall and/or antivirus. Sometimes security mechanisms are configured in such a way that they do not allow the connection to be made.

Reason 3: Incorrect modem disconnection or session termination

More often, the problem lies in incorrectly disconnecting network equipment or terminating an Internet session. You should not disconnect the modem when the Internet is working, or disconnect and reconnect the cable while using the Internet. Another problem occurs when there is a power outage. The problem is usually solved by turning off the computer for 5-10 minutes and turning it on again.

Reason 4: the provider is performing repair work

For some providers that provide services via a USB modem, this error is listed as “performing maintenance work.” Contact hotline contact the provider to clarify the circumstances.

Error 720

Reinstall the network card drivers.

Instructions:

1. Go to "Device Manager" from "My Computer Properties" or "System and Security" in Control Panel.
2. Open the properties of the network adapter.
3. On the “driver” tab, click on the update or remove button to reinstall.
4. Once the process is complete, restart your computer and try connecting to the network again.

If the problem persists, reset your network settings.

Important! Further actions will change part of the registry, so some programs will stop functioning. Such applications will have to be reinstalled.

Instructions:

1. Click "start" on the system menu or keyboard.
2. Enter CMD in the search, and then enter two commands in sequence:

netsh int ip reset resetlog.txt;

netsh winsock reset.

1. Restart your computer and reconnect to the network.

If both of the above methods do not solve the problem, reinstall the operating system.

Error 769

Usually the problem is related to the modem drivers. Download current version drivers and perform a clean installation. Afterwards, disconnect the modem, restart the computer, connect the modem and reconnect to the Internet.

Sometimes the problem is with the network adapter. “Turning it off” and then “turning it on” in the “Device Manager” section helps.

Additionally, check your firewall and/or antivirus settings. Sometimes high or manual settings block access to the network.

Error 797

There is no driver for the modem you are using. Download the driver from the official website of the manufacturer and perform a clean installation. When finished, restart your computer.

Error 800

The problem occurs due to the lack of access to the VPN server. Check if the local network is turned on, and in the settings VPN servers, in the “computer name” field, the address is entered – 192.168.1.1. It is better to remove the connection and reconfigure.

Also temporarily disable the firewall and antivirus. If the connection is successful, change the protection settings of the programs blocking the connection.

Error 815

Under this number, the error occurs only on the OS Windows Vista. In other versions of the system, the error code is different - 678, 769 and 651.

Reason 1: Network card failure

Double-check your network card in Device Manager. Open the context menu with the right button, where select “disable”, and after a short time, “enable” the card again in the same way.

Sometimes you need to reinstall or update drivers. The absence of an adapter in the list of connected devices indicates the need to install drivers. If the installation process fails or the drivers do not solve the problem, the network adapter has probably failed and requires careful diagnostics. Alternatively, use an external or built-in network card.

Reason 2: Mechanical failure of the network cable

Double-check the integrity of the wires going to the modem/router and computer. Contact your provider and request the ability to remotely diagnose the cables running to your equipment/computer.

Error 868

The problem occurs in some builds of Windows 7 due to the DNS client not working properly. There is no clear and universal solution, since each case is individual. As an option, sometimes changing the OS or installing another version 8 or 10 helps.

Sometimes reconnecting helps and after 10-20 attempts the connection is successful. More use DNS servers 208.67.220.220 or 208.67.222.222.

Conclusion

If you do not have an Internet connection, but know the error code, you can easily find a solution from this article. Some errors occur due to several reasons, so sometimes you need to perform several sequential steps.