Sudden internet termination does not allow planned business - to relax or work, because modern services And games are firmly tied to the Internet. Description of the most common mistakes collected in the article will help you find a solution and resume the work of the Internet.

Before you delve into solving the resulting problem, you must perform a basic check. Recommendations relate to all errors, and often make it possible to solve emerging problems with the absence of an Internet connection.

1. Check balance. Make sure the fund account is sufficient to use the service. Sometimes providers change the cost of the tariff without prior notice, payment systems do not list the funds on time, fails when removing money by the provider from the account.
2. Check the correctness of the login and password. Many companies connect the Internet through PPPOE and issue a subscriber prepared data for authorization. Often symbols are easy to confuse due to the font, and some of the letters are not printed. Specify information from the provider. Rewrite the data in advance text editorWhen copying, make sure that you did not capture the "space". Also, make sure that the text has allocated completely and not allocated additional characters if additional information is present in the file.
3. Provide the correct and dense cable connection. Carefully connect the wires, which is relevant in the presence of routers or splitters. Tightly install the cable, to eliminate the disconnection.
4. Do not hurry with radical solutions. Often "specialists" working on the provider recommend reinstalling the operating system, while the problem has solved the usual reboot of the computer. Do re-executed solutions to problems. If the problem could not be eliminated - reinstall the OS.

If the article has no solution to your problem or the described methods did not solve the problem, contact the provider.

Error 619.

Cause 1: Incorrect Security Settings

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

Cause 2: Network card connector does not work or disabled

Check out performance network card In device manager. Make sure the map is displayed in the list. installed equipment. Install or reinstall the network card drivers.

Error 629.

Cause 1: Session is running

Often, when connected, a double launch of the session is triggered, for example, the dialog box fools and you have pressed to connect twice. Or the previous session was closed incorrectly. Perform a re-connection after 3-5 minutes or restart the computer.

Cause 2: TCP / IP protocol settings are not released or reset

Check the IP address and DNS server settings. Sometimes the values \u200b\u200bare defined incorrectly or reset when system error. More check the correctness of the login and password.

Error 651.

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

Error 678.

There is no connection of the computer and equipment provider.

Cause 1: Problems in the work of the provider's equipment

Contact the Internet provider and find out the causes of the lack of access to the network. Specify whether the repair work is not conducted whether the remote check of the integrity of the network cable is possible.

Cause 2: Failure or Malfunction of the Network Card / Connector

With voltage or thunderstorm drops, the network card connector flashes or fully the module. If possible, install a PCI or USB network card and check the connection. Often the problem is solved by the administrators of the drivers.

Cause 3: Blocking from an antivirus or firewall

Suspend the work of the built-in or installed firewall, as well as antivirus. View program work options. Sometimes an exposed high level of protection leads to blocking outgoing and incoming queries.

Cause 4: Presence of viruses or software failure

Restart the computer, check the system for malicious programs. Some Trojans deliberately block access to the network.

Cause 5: Failure or breakage of the router

Connect network cable Without a router, check the Internet performance. If the connection is established, it is likely that the equipment fails, the settings failed or moved.

Error 691.

Typically, the problem occurs when the login and password are input incorrectly. After a pair 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 the provider.

More detailed how to solve the error 691, read in our separate.

Error 711.

The problem occurs when one or more of the services are not active on your computer, which is used to connect and maintain the Internet operation.

1. Open the "System and Security" section in the control panel.
2. Next, the "Administration" section.
3. Lay and open "Services".
4. Alternately find four services:

1. Turn on non-working services. If the service is active, replace the "automatic" launch to start "manually". Make sure you use the administrator account with the rights to change the service status.

Error 718.

Cause 1: Incorrect username or software failure when installing connections

Typically, the notification appears when entering incorrect login, or the program responsible for the connection is violated. Therefore, it is necessary to double the correctness of the input data, taking into account the register and layout of the keyboard.

Cause 2: The firewall blocks the connection

Unlikely, but check the firewall and / or antivirus stands. Sometimes protective mechanisms are configured so that they do not allow compound.

Cause 3: Incorrect Disable Modem or Session termination

More often, the problem is incorrectly disconnecting network equipment or completing the Internet session. You should not turn off the modem when you work, disconnect and reconnect the cable during the Internet. More troubles occur during power interruptions. The problem is solved, usually turning off the computer for 5-10 minutes and re-inclusion.

Cause 4: Provider performs repair work

Some providers providing services via USB modem, this error is as "performing preventive work." Refer to hot line to the provider to clarify the circumstances.

Error 720.

Reinstall the network card drivers.

Instruction:

1. Go to "Device Manager", from "My Computer" or "System and Security" section of the control panel.
2. Open Properties network adapter.
3. On the Driver tab, click the Update or Delete button to re-install.
4. Upon completion of the process, restart the computer, and try reinstalling to the network.

If the problem has not disappeared, reset the network settings.

Important! Further actions will change part of the registry, so some programs will no longer function. Such applications will have to reinstall.

Instruction:

1. Press "Start" in the system menu or on the keyboard.
2. Enter the CMD search, and then sequentially enter two commands:

netsh int ip reset resetlog.txt;

netsh Winsock Reset..

1. Restart the computer and repeat the connection to the network.

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

Error 769.

Typically, the problem is related to the modem drivers. Download actual version Drivers and perform a clean installation. After, disconnect the modem, restart the computer, connect the modem and re-connect to the Internet.

Sometimes the problem is to work the network adapter. Helps "shutdown" and then "inclusion" in the "Device Manager" section.

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

Error 797.

No driver used modem. Download from the official site of the driver manufacturer and perform a clean installation. At the end, restart the computer.

Error 800.

The problem arises due to the lack of access at the VPN server. Check whether the local network is enabled, and in the server's VPN settings, in the "Computer Name" field, addressed to 192.168.1.1. It is better to remove the connection and re-configure.

Also, disconnect the operation of the firewall and antivirus. If the connection is managed, change the protection parameters blocking the connection, programs.

Error 815.

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

Cause 1: Network Card failure

Check the network card in the Device Manager. Open the context menu, where select "Disable", and after a short time, re-"turn on" the card with the same method.

Sometimes you need to reinstall or update the drivers. The lack of an adapter in the list of connected devices, indicates the need to install drivers. If a failure or driver fails during the installation, did not solve the problem, the network adapter has failed, and careful diagnosis is required. Alternatively, use an external or embedded network card.

Cause 2: Mechanical Malfunction of Network Cable

Check the integrity of wires going to the modem / router and computer. Contact the provider and request the remote diagnostics of cables that reach your hardware / computer.

Error 868.

The problem arises in some builds of Windows 7 due to improper operation of the DNS client. There is no unambiguous and universal solution, since each case is individual. Alternatively, it sometimes helps the OS change or installation of another version 8 or 10.

Sometimes it helps a re-connection and from 10-20 attempts to connect. Still take advantage DNS servers 208.67.220.220 or 208.67.222.222.

Output

If you do not have an Internet connection, but the error code is known, it is easy to find a solution from this article. Some errors occur due to several reasons, so sometimes you need to perform several consecutive actions.

Connection error 638 with a comment " Remote server does not respond in time"Most often occurs from those providers where the VPN connection via PPTP or L2TP is used. Bright example - Beeline. The reason is usually in incorrect configuration of the IP version 4 Internet protocol, which will result in the unavailability of the VPN server, which we are reported by the operating system.
On connections via PPPoE (Rostelecom, Dom.ru, MTS), I met the problem for a couple of times and in each case there was problems with a network card. Let's look at the main reasons due to which 638 Windows errors appear and the ways to eliminate them appear.
Before performing any actions with settings, be sure call the provider support service. Maybe they have technical problems or network work. This will avoid unnecessary campaigns and you will only have to wait for the operation of the access server.

1. Incorrect network card setting

Very often, after reading different forums, users change the settings of the protocols. After that, Internet access disappears and an error 638 appears. Therefore, we start with what opens the network windows connectionsWe go into the properties of the network adapter and check that in the IPv4 network protocol parameters automatically obtaining the IP address and DNS servers:

Sometimes, of course, some operators use static addresses, but it is very rare.

2. Drivers problems

Also very frequent phenomenon, especially when connected via 3G / 4G USB modems. It can be served by the fault of the operating system itself, even updates as well as the user installation of other devices or programs. To check it out, open the Windows Device Manager and look - there is no lines with an exclamation mark.

Especially it is worth paying attention to the "Network Adapters" section.
If the modem or board has an exclamation mark, you need to reinstall the device driver and the error 638 will disappear and the connection will be successful. If you do not have it - you have to resort to the help of friends or acquaintances and download last version from the Internet.

3. Modem settings

This item relates more to those who are connected by ADSL and through the GPON fiber optic (for example, from Rostelecom or MTS). In this case, the subscriber is set by a modem or optical terminal. If it is configured in Bridge mode (Bridge), then when the modem itself fails or its settings, the remote provider server will also be unavailable and the connection error will appear. Optical Link (whether the corresponding indicator is on), and then go to it and check the access channel settings.
Also, I would strongly recommended to run the ping modem via the command line and see if there is no loss.

Ping must be smooth and loss. By this you eliminate the possibility of damage to the LAN cable between the modem and the computer.

4. For the service of the service remote access

The topical telephony service or remote access failure can also be the source of the problem and cause an error 638 when connecting to the Internet. Usually solved a simple reboot of a computer or laptop.
If it did not help - you can try to do to the last point of recovery. By this, at the same time, exclude an option with viral activity and damage to the operating system registry.

Computers are firmly entered into our lives, and access to the Internet today for many is already an urgent need. Modern equipment And operating systems are becoming increasingly intelligent, and the user becomes more and less the need to do something to configure. However, occasionally such a need arises. Today we will tell you how to solve the problem if the computer reports that you are connected to the network without access to the Internet, and you see a yellow triangle with an exclamation mark near the connection icon.

Why error occurs

Operational microsoft systemsStarting with Windows 7, network connections are constantly monitored, and the global network is not available soon, immediately report it. The reasons for which there may be no connection to the Internet on the computer, not so little. Such may be the problem of the provider, the incorrect setting of equipment from the user or fails to work network Protocols. Today, the new IPv6 protocol is becoming increasingly distributed, but the percentage of it is still quite small, even more so in home networks, therefore the focus will be paid old version - IPv4.

Connection via a router over a network cable without internet access

Problems from the provider

Yesterday everything worked, and today this warning appeared. If you have so happened without visible reasonsIn most cases, the problem of the provider. Therefore, before doing anything yourself, call technical support. Most often damage to data lines, some technical works are carried out or you just forgot to replenish the account.

Perhaps you will hear in response that the provider does everything work well, then you need to check your network and, if necessary, configure it. The support service will surely offer their master's services, but, first, its services are not free, and secondly, during the time, while the master gets it, you can have time to solve the problem yourself.

The problem with physical connection

Not so rare cases when the wines of everything is partially interrupted network cable or a dischargeable connection in the connector. And if you have pets or children, the probability of such developments increases. Even Wi-Fi users should not forget that wireless router Also stretched the cable. Check the integrity of the entire wiring - there is no strong beggars anywhere, whether all the plugs are tightly inserted into the sockets and whether they are inserted wherever need. Provided that the problem is not detected here, go to the next stage.

Connecting on the LAN Windows 7 without access to the Internet

If the router is used

Restart equipment

It happens that the installed router tritely freezes. In this case, it helps his reboot. To do this, it is enough to turn off the power from it and connect it again after a few seconds. It does not prevent at the same time restart and computer. If it happens that such hangs of the router occur with annoying regularity, think about buying a new device. You also need to try to connect an Internet cable directly to a PC or laptop. In the absence of the result, I will understand the computer to begin with.

Check the computer settings

It is possible that the problem arose "on the level place", then there should be no questions with the settings on the computer, much more often the problem occurs during the initial configuration or making any changes to the already operating network. First of all, it is necessary to check the correctness of the IP address of the computer, for which you press on the keyboard at the same time Win + R. The "Run" window opens. In its row, enter NCPA.CPL and click OK. The network connections window appears. It may happen that there are several of them, but the necessary will not be crossed out with a red cross and its name is similar to "Connecting on a LAN" or " Wireless connection"(If using Wi-Fi). Click on the desired right-click connection and go to the properties where the list will be lines with IPv4 and IPv6 records. Check for a tick opposite IPv6, and on the IPv4, click twice. Mark the items of automatic settings and save the changes. If access to the Internet does not appear, go further.

Setting up a local network connection in Windows 7

Find out the address of the router

Perhaps in the previous window did not have to do anything, the settings for receiving IPv4 and IPv6 addresses are automatic and everything was originally as needed. Then you should only configure the router, for which it is necessary to know its address. Make the right click on the connection and select "Status", and then click "Details". In the window that appears there will be several lines, we are interested in the "IPv4 address". If you see an entry of the form of 192.168.x.x, remember or record what is indicated opposite the "IPv4 DHCP server" - it will be its address. It may be so that the computer is not able to get the settings automatically, then the record will be viewed 169.254.x. You can find out the IP of the router from the documentation for it, or it is specified on the device case, and most often it is 192.168.0.1 or 192.168.1.1. Open your browser and enter the installed IP in the address bar, and, if it is faithful, a request to enter a login and password will appear.

Properties "Internet Protocol Version 4 (TCP / IPv4)"

Configure the internal network on the router

After entering the credentials, you will fall into the router control panel, and further actions depend on the device model and its firmware. You need to find the DHCP server management that is responsible for automatically obtaining IP addresses and other parameters required to function normally. Look for blocks in the title of which the DHCP Settings, DHCP server or similar are specified. The block will contain a switch with Enable values \u200b\u200b(allow) or Disable. Most often, these settings are located in the LAN section. Turn on the DHCP server, save the changes and restart the router. The field of this, the computer will be connected to the Internet.

Check the connection settings for the provider

Do not have hasty conclusions if the previous actions did not help configure the connection. Since the network is still not working normally, check the connection to the provider, for which in the router control panel, go to the appropriate section. Almost all manufacturers, these options are called WAN or Internet. Settings options in this section are quite a lot. What are you intended for you, you can learn from the contract or in the technical support of your service provider.

Reinstalling the network card drivers and checking the firewall

Doing it makes sense when you are sure that all previous settings are correct, the connection with the provider is installed, but the network cannot be configured normally. The best option will download the latest version of the driver from the manufacturer's website, which seems to have to go to a friend or neighbor. In the absence of such an opportunity, it is quite suitable that driver that is attached to installation disk. After reinstalling, be sure to restart your computer. Here it is also necessary to note the crashes in the drivers arising from the established softwarewhich makes changes to the operation of the network protocols on the computer. Most common representatives are antiviruses and network screens. Make sure that such programs are not installed, and if available, then disconnect or delete them by checking, as they can block the connection.

Replacing the MAC address of the network card

Problems with Mac addressee Sometimes there are in cases where the network is very large, but it is still worth excluding it. On your computer, go to the Device Manager, for which press Win + R keys, enter Devmgmt.msc and click on OK. The device manager will start, where you need to find the "Network Adapters" section, deploy it and select a network card with which PC is connected. After a double click on it, in a new window, on the "Advanced" tab, select the Network Address parameter and enter any twelve digits to the empty field on the right. After that reboot and look at the result.

Clearing DNS cache and reset TCP / IP settings

Subsequent actions will reset all network settings For IPv6 and V4, so you need to perform them. If you are ready for this, you have information about all the settings (somewhere recorded, for example), find the command line in the Start menu and run it with administrator rights. Enter the above commands in the window that appears, confirming the entry by pressing ENTER. After working out each command, restart the computer and check the result.

1. ipconfig / Flushdns.
2. netsh Winsock Reset.
3. netsh int ip reset c: \\ resetlog.txt - This command will completely drop all connections and have to be configured again!

Cleaning the DNS cache using the command line

You have a direct connection to the provider

Option when your computer is connected directly to the provider, bypassing the router, currently meets more and less often, since the number of network devices is growing steadily. But what if you have this connection? Eliminate possible problems With drivers as it was indicated above, and check the correctness of the connection settings. Regarding the settings, the best option will apply to technical support, since there are a large variation here.

Nothing helped at all

Maybe you are lucky and your provider provides access using the new IPv6 protocol, which requires knowledge of some subtleties. It should be noted that the extension of using IPv6 is inevitable, since the address space of the previous version of the protocol, IPv4 approached the end, and the global network grows with each day. Once, the efforts were spent, and did not earn your network, then the advice is only one - call the masters. It is quite realistic that the problem that has arisen has a non-standard or to solve it requires a replacement / repair of equipment.

Internet access is, but the error remains

This situation may well be. Causes can be different - most often when connected through a proxy server. However, the decision is one. Press Win + R, enter the gpedit.msc - so you will get the editor of local group policies. In the Left menu, go through the items: Local Computer Policy - Computer Configuration - Administrative Templates - System - Communication Management via the Internet - communication parameters via the Internet. Now, on the right side of the window, find and enable "Disable active probing for the status indicator network connection" In Windows 10, this parameter is called "Disable Active Network Connection Operations." Call the fact that now even with a really missing connection, the message will not appear.

The problem of connecting the Internet had to deal with many users. For convenience, each of these errors has its own numerical designation. Check out the most popular of them.

Error 651.

Meets most often. About the presence of problems The system notifies such a message.

It appears due to a failure in the operation of the network equipment, which can lead to which can a variety of factors.

For treatment, we work in such a sequence.

First step. Check the connection of Internet cables. Reconnect them.

The second step. Restart network equipment in case of use. Just turn off the router (modem) from the outlet and turn it back.

Third step. Re-made PPPoE connection manually or use for this special utility From Microsoft - Rasphone. To do this, press Win + R and enter the Rasphone.exe command to the appropriate field.

If you have seen the error under consideration when you first use the connection you just created, make sure that the settings entered are loyal. Most often, the error appears due to the wrong instructions of the VPN server. Check and correct inaccuracies.

If the problem appeared after installing the new anti-virus support either a firewall, make sure that the utility used does not block access to the network.

If nothing helped, call the support of your Internet provider's support. Most likely, there are problems with their part. Try to enter in 192.168.0.1 and turn off all who are connected to your Wi-Fi router.

Error 691.

Most often appears due to the wrong instructions of the login and / or password for connecting to the network.

Also, the following factors can also lead to error:
incorrectly entered server address;
incorrect IP;
Incorrect security settings.

Accordingly, for treatment, do the following:
1. Make sure whether you entered the password and login.
2. Check the accuracy of the VPN server and IP. Open the Start, go to the Network Connections section, right-click your mouse over the connection shortcut and go to the properties. The data entered must comply with the fact that the provider provided.
3. Check security settings. In the same Properties tab, select Options, and then - the settings of the number dialing. If the line "Enable the login domain in Windows" is active, remove the checkbox.

If nothing saved, call the provider's support - the problem may be on their side.

Error 678.

The problem occurs when there is no response from the VPN server.

For her cure, we do the following:
1. We check that the firewall or antivirus (in case of their presence) do not block connection to the network.
2. Turn on the network adapter in the Device Manager section.
3. Check that the Internet cable is normally inserted into the connector.
4. Reinstall Internet card drivers.
5. Call the provider and find out if there are no problems on their part.

Looks like that:

Appears because of:
incorrect security setup;
inaccuracies in the settings of the VPN connection;
Lock traffic with other applications (antivirus, firewall).

First step. Go to the start.

The second step. Run the control panel.

Third step. Go to the Network Connections section. We study the status of the label of our connection. Specifically, we look at what is written in brackets near the wan miniport - PPTP / L2TP or PPPoE.

If PPPoe is written, do the following:
click the right key of our mouse over the connection label;
We go into properties;
Select the Security tab. Customize this:

If you are using a VPN connection, repeat the sequence until you fall into the Security section. Here deactivate the string "require data encryption".

Sometimes this error also appears at modem owners when the computer cannot determine the USB device.

First step. Go to the control panel.

The second step. Open the category System.

Third step. Go to the Equipment section.

Fourth step. In the device manager, look if there are any alarming notifications like yellow and red badges near our equipment? If there is, reboot. Nothing changed? Insert the modem in another uSB port. In the absence of changes and in this caseTesting the modem on another laptop or computer. Does not work? Appeal to the modem supplier.

Error 868.

It appears in situations when the computer does not turn out to connect to the VPN server.

To eliminate the problem, first of all check whether the connection is actively connected. We work in such a manner.

First step. We go into the launch, and then in the control panel.

The second step. We go to the network and the Internet (in different modifications, the name may vary, orient on the situation).

Third step. Go here.

Fourth step. Click changing the parameters of the adapter.

Fifth step. Click on the connection icon and click on.

If the connection has been turned on, check if a VPN server is entered correctly. To do this, open the properties of our connection and we study the information entered in the General section. Check with the data provided by the provider. If it is not possible to eliminate the problem, malfunctions are most likely on the side of the provider. Contact user support.

Error 720.

This problem appears when a client computer fails for any reason to connect to the service provider server.

There are 3 main method solving a problem.

First method - Restoring OS. We click Start and in the list of programs open the category Standard. There we go to the service partition and turn on the system recovery. We choose one of the previously created recovery points. If it does not help, we use the following method.

Second way - Reset settings to the initial. Click Start and enter CMD. The system will open the console. We write a Netsh WinSock Reset and press ENTER.
Reboot. No positive changes? We use the following method.

Third way - Reset IP settings. Open the console (the procedure is described above) and write Netsh int ip reset c: \\ resetlog.txt
We are trying to connect to the Internet. If it also did not help, call the provider.

Now you know why the main errors of the Internet connection appear and how to deal with them.

Typical error codes

Error codes arising when creating connections remote access and VPN connections

If an error occurs when connecting to the Internet, it is recommended to do the steps specified in this manual. If these actions did not help, you need to contact the technical support service, inform the error code and list the actions taken by you.

Typical problems and ways to solve them

Errors with 6xx codes

Errors 600, 601, 603, 606, 607, 610, 613, 614, 616, 618, 632, 637, 645 - There was an internal error of Windows.
Restart the computer. If the error does not disappear, then check your computer for viruses. Remove recently software installedor cancel recent changes to windows settingsif such were.
Errors 604, 605, 608, 609, 615, 620 - The phonebook filebook filebook subsystem of Windows and the current remote network access configuration is incompatible with each other.
Restart the computer. If the error does not disappear, then delete and re-create a VPN connection.
Error 611.
Restart the computer and make sure that the local network is functioning normally on your computer. If the error does not disappear, then contact the Technical Support Service.
Error 612. - The internal configuration of the Windows network is incorrectly configured.
Similar to Error 611. In addition, the error may be caused by the lack of resources (memory) on your computer. Try close running programs.
Error 617. - Windows is in the process of connecting to the Internet, or an internal Windows error has occurred.
Wait a few minutes. If the connection is not installed, and when you re-connect the error is repeated, then restart the computer.
Error 629. -VPN Connection was broken down due to poor quality of communication or after unsuccessful agreement.
Contact technical support.
Error 642. -What computer assigned the NetBIOS name already used on the network.
Change the computer name in the properties of My Computer in the "Identification" section.
Error 678.- There is a response from the VPN (PPPoE) server.
Check if you have a local network. Check out vPN Settings Connections and settings for your firewall (if it is installed on your computer). If nothing helped, then contact technical support.
Error 619. - Cannot connect to remote computer, Therefore, the connection port is closed.
In the properties of the VPN connection, open the "Security" tab - must be selected "the usual (recommended parameters)" and must be removed the checkbox "Data encryption is required (otherwise disconnected). Restart the computer and try to connect again.
Check the settings of your firewall, and if you are not sure about their correctness, turn it off.
Error 633. - The modem is already used, or is not configured for outgoing remote access connections.
Such an error occurs due to the "hanging" of the connection. To resolve it helps to restart the computer.
Error 635. - An unknown error occurred. This error occurs due to the problems of the VPN client on your computer it or is spoiled or installed incorrectly. As a rule, such a problem may occur on the old Windows 95/98. To solve the problem, you must reinstall the VPN client (another name - virtual private network) or Windows OS.
Error 638, 651, 769 - Errors are found in all types of equipment, consider typical actions that can help in their resolution:
Check if the modem is connected correctly to the computer.
Check out the availability of power on your modemia (for modems with external source Power).
If you have a modem connected to uSB port, Check whether drivers are installed correctly for USB ports in the operating system, it is better to install "native" drivers that come complete with motherboard.
Check in the Device Manager in the "Network Boards" section, correctly installing the modem driver. If you have a modem connected to the Ethernet port, check the settings of the network card driver installed on your computer.
Check that the TCP / IP protocol settings are installed for the network card installed on your computer:
Check the cable type used when connecting the modem to the computer (use to connect the wire from the purchased kit).
Check the availability of communication between the computer and the modem using the modem indication.
Check the connection between the computer and the modem using the Ping command in command line (Start / Run / Command CMD), to TCP / IP Address installed on your Modem (Ping 192.168.1.1)
Check that the modem parameters are installed correctly according to the instructions of the equipment attached on the CD-disk.
Check that the connection parameters are set correctly according to the instructions attached on the CD-disk from the equipment kit.
If the WinPoET program is required to set the connection, install it. WinPoet program is used in operating windows systems ME, Windows 2000.
Check by displaying the modem, the presence of a DSL signal, the corresponding indicator on the modem should be buried constantly.
For most USB modems, the indication on the modem is duplicated by software indication.
In the absence of a signal, check the correct connection.
Error 650. - The remote access server does not respond.
The VPN Internet Access Server does not respond.
Possible reasons: You have incorrect network card settings or you physically defective network.
Error 678/815 (Vista) - Remote computer does not respond
This error It may arise due to the lack of communication between the modem and station equipment (the "DSL" or "ADSL" indicator does not burn on the modem), and also if:

• No connection between the modem and the computer.
• The modem is hung.
• Incorrectly configured modem.
• Connection locked with protective programs.

Solution Options:
Check the connection scheme. Try to connect the modem to the telephone line by turning off all other devices connected to it (for example, phones).
Error 691. - Error at the authorization stage.
The reasons:

• Negative balance on the account - pay debt.
• Incorrect username or password - check the login, password based on the client's memo.

It can also arise with the incorrect completion of the working session on the Internet, i.e. You did not disconnect your connection, and turned off the PC. Also, this error may occur in the event of a session cliff.
Solutions options - Check the details of access to the network (you received this data at the time of the conclusion of the contract).
Check whether you follow the case register.
Make sure there are no debts to pay for Internet access services.
Re-create a high-speed connection. Restart your computer and modem.
If the error occurred at the non-working time of the technical support service, try connecting re-approximately an hour.

Errors with 7xx codes

Error 721. - VPN server does not respond to requests
Check the settings of the network adapter and make sure that the local network is running.
Error 735. - incorrectly configured VPN connection
Make sure that in the network settings (or rather in the TCP / IP protocol settings), the connections are not specified a specific IP address, and all parameters are automatically obtained.
Error 743. - Environmentally configured encryption parameters
Go to the configuration of the VPN connection, and disable the "Data Encryption" item.
Error 769. - There is no response from the VPN (PPPoE) server.
Check if you have a local network. Check the VPN (PPPoE) settings of the connections and settings of your firewall (if installed on your computer).
Error 789. -Shembler incorrect type VPN connection
Go to the Connection VPN settings and on the "Network" tab from the VPN Type list, select "PPTP VPN". Try re-connect.
Error 797. -In computer settings indicated already using the name
In the settings of the network identification in the "Computer Name" field, enter your login, and in the field " working group"Enter" SUTC "(without quotes).
Error 718. - Expired the waiting time of the permissible response from the remote computer
Incorrectly configured connection for Internet access. Re-create a high-speed connection.
It is possible that the problem of the provider. It is necessary to contact B. technical supportif the problem persists.
Error 734. - Problems with setting PPP connections.
Solutions options - go to the connection properties, the security tab, remove the data encryption and put the usual recommended parameters.
Two times the left mouse button on the desktop on your connection shortcut, now click Properties. In the window that appears, click the Network tab and in the Components field used by this Connection, remove the checkbox from the NWLink IPX / SPX / NETBIOS-compatible transport item. Now press OK. After that, you can click the Call button. Connection must occur.
Error 733.- This computer and remote computer could not match the PPP control protocols
Probable reason: Connect the connection to Internet access is incorrect.
Try to re-create a high-speed connection.
Error 734. - The RWP management protocol - connected was interrupted.
Solutions Ways - Check the settings for receiving network access details (all of it can be automatically) TCP / IP connection properties over the local network, check the VPN security settings - Connections: Open the Safety tab - must be selected "Ordinary (recommended parameters)" and should To be removed a check mark "You need data encryption (otherwise disconnected)".
Error 735. - The requested address was rejected by the server.
The cause of the occurrence - you incorrectly configured the VPN connection to access the Internet.
Solutions Ways - In the TCP / IP settings of the VPN connection, check how the IP address is registered, it must allocate automatically (ATTENTION! Do not configure the TCP / IP network card settings and the VPN TCP / IP settings). Check the network card settings and Internet access via the VPN connection. In the properties of your connection, the "Network" tab, open the Properties of the Internet Protocol (TCP / IP), and the following options: - to receive IP addresses automatically - to receive the DNS server address automatically.
Try re-create a new connection.
Error 741, 742 - Local computer Does not support the required data encryption type. (Remote computer does not support the required data encryption type). Error 741, 742 means that the connection to the authorization server is not set due to the inconsistency of encryption levels on your computer and our authorization server. This error can be eliminated by removing the check box "You need data encryption (otherwise disconnected)" on the Safety tab in the properties of your connection with the Internet.
Error 769/814 (Vista) - The specified purpose is unattainable.
The reasons for this may be the following:

• no Link - On the icon "Local network connection" The inscription "network cable is not connected" (if the network cable is connected correctly - call in technical support),
• the IP address, mask or gateway are written incorrectly. Check if the VPN settings are correct - disable / unload the firewall service (if installed)
• disabled "Connection on the LAN".

Turn on the "Local Network" connection (Control Panel? Network Connections).
Error 789.- The L2TR connection attempt was failed due to an error that occurred at the security level during coordination with a remote computer.
In the VPN connection properties, open the "Network" tab - in the "VPN Type:" list, select "PRTR VPN"; Try connecting.
Error 797. -Connecting to a remote computer could not be established due to the fact that the modem is not found or busy
Probable reasons - modem hung, modem driver is not installed. Incorrectly configured connection for Internet access, the modem is faulty. Possible paths Solutions - Restart the computer if you have a USB modem, reinstall the modem driver, re-create a high-speed connection, when modem malfunction, contact the service center.

Errors with 8xx codes

Error 800. - Lack of and / or network problems. Problems, both on the side of the provider and the client.
The reasons:

• no connection - Check the connecting cables, remove-insert the plug (RJ45) in the network card socket.
• check, reinstall the network card drivers.
• check security settings, lock.
• lack of communication between the computer and the gateway, or the VPN server (verified by the Ping command your_server)
• reinstall VPN connection (Create a new VPN connection? Using the Connection Master)
• check computer for viruses.
• check the network connection properties "Connect over a local network" must be "Internet TCP / IP / IP / Properties / Get an IP address automatically / get the address of the DNS server automatically"

Error 652.- Could not connect to the network due to the existence of coinciding names.
Possible solutions: Try to change the name of the computer in the network properties (Windows 98 / Me) or My Computer Properties (Windows 2000 / XP), you can also try to check the network components if Microsoft Loopback Adapter is installed - remove it (in the Russian version " Adapter Microsoft closure on itself "is a virtual network card, or rather, it is just a driver). If it does not help - you need to understand your computer.

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