Many users sometimes encounter errors when connecting to the Internet. This may be caused by problems with specific computer or malfunctions on the provider's side. The error number allows you to find out the cause and find a solution without assistance from 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 are faced with 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 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 in Personal Area and 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. IN different versions Operating system error code may differ. 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 of possible causes. 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 it is connected to the computer. This elementary thing is the most common cause errors 678/651/815 appear.
Error 619
The technology for connecting subscribers differs slightly between different providers. The reasons for the appearance 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 Internet connection properties on the “Security” tab, you need to set the “Used when checking” option to “ Secure Password" This type of connection is used, for example, by subscribers home internet from Beeline.
Error 769/800
Windows XP users who have problems with drivers or local network connections will not 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 your 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 icon local connection gray, then it must be enabled using
If there is no local network connection, then the problem lies with 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:
- means the PPPoE protocol has been completed. 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 settings, you must specify that the network address should be obtained 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 advise possible reasons occurrence of errors and ways to eliminate them. And if necessary, he will also submit a request for installers to visit you.
Computers have firmly entered our lives, and access to the Internet today is already an urgent necessity for many. Modern equipment and OS They become more and more intelligent, and the user less and less often has the need to do anything to configure them. However, occasionally such a need arises. Today we will tell you how to solve the problem if your computer reports that you are connected to a network without access to the Internet, and next to the connections icon you see yellow triangle with an exclamation point.
Why does the error occur?
Operating Microsoft systems, starting with Windows 7, constantly monitor network connections, and as soon as global network is unavailable, they report it immediately. There are many reasons why your computer may not have an Internet connection. These could be problems with the provider, incorrect equipment configuration on the part of the user, or malfunctions network protocols. Today it is becoming more widespread new protocol IPv6, but its percentage is still very small, especially in home networks, so the main attention will be paid old version- IPv4.
Connecting via a router via a network cable without access to the Internet
Problems with the provider
Yesterday everything worked, but today this warning appeared. If this happened to you without visible reasons, then in most cases the problem is with the provider. Therefore, before doing anything yourself, call technical support. Most often, data lines are damaged, some technical work is being carried out, or you simply forgot to top up your account on time.
You may hear in response that everything is working well with the provider, then you need to check your network and, if necessary, configure it. The support service will probably offer the services of its technician, but, firstly, his services are not free, and secondly, by the time the technician gets to you, you may have time to solve the problem yourself.
Physical connection problem
It is not so rare that the culprit is a partially broken network cable or a loose connection in the connector. And if you have pets or children, then the likelihood of such a development of events increases. Even Wi-Fi users should not forget that there will also be a cable running to the wireless router. Check the integrity of all wiring - are there any strong kinks anywhere, are all plugs firmly inserted into the sockets and are they inserted where they really need to be. Provided that no problem is found here, we move on to the next step.
Local connection Windows network 7 without internet access
If you are using a router
Rebooting the equipment
It happens that installed router simply freezes. In this case, rebooting it helps. To do this, just turn off its power and connect it again after a few seconds. It won't hurt to restart your computer at the same time. If your router freezes like this with annoying regularity, consider buying a new device. You should also try connecting the Internet cable directly to your PC or laptop. If there is no result, let’s first deal with the computer.
Checking your computer settings
It is possible that the problem arose “out of the blue”, then problems with the settings on the computer should not arise; much more often the problem arises during the initial configuration or making any changes to an already working network. First of all, you need to check that the IP address of your computer is correct by pressing Win+R on your keyboard at the same time. The Run window will open. In its line, enter ncpa.cpl and click OK. The network connections window will appear. It may happen that there are several of them, but the necessary one will not be crossed out with a red cross and its name is similar to “Local Area Connection” or “ Wireless connection" (when Wi-Fi usage). Right-click on the desired connection and go to properties, where the list will contain lines with IPv4 and IPv6 entries. Check the box next to IPv6, and double-click on IPv4. Check the boxes to automatically receive settings and save the changes. If access to the Internet does not appear, move on.
Setting up a local network connection in Windows 7
Finding out the router address
Perhaps you didn’t have to do anything in the previous window, the settings for obtaining IPv4 and IPv6 protocol addresses are automatic and everything was initially as it should be. Then you just need to configure the router, for which you need to know its address. Right-click on the connection again and select “Status” and then click “Details”. There will be several lines in the window that appears; we are interested in “IPv4 Address”. If you see an entry like 192.168.x.x, remember or write down what is indicated opposite “IPv4 DHCP server” - this will be its address. It may be that the computer is not able to receive the settings automatically, then the entry will look like 169.254.x.x. You can find out the router’s IP from its documentation, or it is indicated on the device’s case, and most often it is 192.168.0.1 or 192.168.1.1. Open your browser and enter the established IP in the address bar, and if it is correct, you will be prompted to enter your username and password.
Internet Protocol Version 4 (TCP/IPv4) Properties
Setting up an internal network on the router
After entering your credentials correctly, you will be taken to the router control panel, and further actions depend on the device model and its firmware. You need to find a DHCP server control, which is responsible for automatically obtaining IP addresses and other parameters necessary for the network to function properly. Look for blocks whose names include DHCP settings, DHCP server, or similar. The block will contain a switch with the values Enable or Disable. Most often, these settings are located in the LAN section. Enable the DHCP server, save the changes and reboot the router. Once this is done, an Internet connection will appear on your computer.
Check your connection settings to your provider
You should not make hasty conclusions if the previous steps did not help set up the connection. Since the network is still not working normally, we check the connection with the provider, for which in the router control panel, go to the appropriate section. Almost all manufacturers call these options WAN or Internet. There are quite a lot of settings options in this section. Which ones are intended for you, you can find out from the contract or from the technical support of your service provider.
Reinstalling network card drivers and checking the firewall
It makes sense to do this when you are sure that all previous settings are correct, the connection with the provider is established, but the network cannot be configured normally. The best option would be to download the most recent version of the driver from the manufacturer's website, which, it seems, will require going to a friend or neighbor. If this is not possible, the driver included with the installation disk. After reinstalling, be sure to restart your computer. Here it is also necessary to note driver failures that occur due to the installed software, which makes changes to the operation of network protocols on the computer. The most common representatives are antiviruses and firewalls. Make sure that such programs are not installed, and if they are, disable or remove them during the test, as they may block the connection.
Replacing the MAC address of a network card
Problems with MAC addresses sometimes arise in cases where the network is very large, but it is still worth eliminating it. On your computer, go to Device Manager by pressing the Win+R keys, entering devmgmt.msc and clicking OK. The device manager will launch, where you need to find the “Network adapters” section, expand it and select the network card with which the PC is connected. After double clicking on it, in a new window, on the “Advanced” tab, select the Network address option ( Network address) and enter any twelve digits in the empty field on the right. After that, reboot and look at the result.
Clear DNS cache and reset TCP/IP settings
Subsequent actions will reset everything network settings for IPv6 and v4, so you need to follow them. If you are ready for this, and you have information about all the settings (written down somewhere, for example), look in the “Start” menu command line and run it with administrator rights. Enter the following commands in the window that appears, confirming your entry by pressing Enter. After running each command, restart your computer and check the result.
- ipconfig /flushdns
- netsh winsock reset
- netsh int ip reset c:\resetlog.txt - this command will completely reset all connections and will have to be configured again!
Clearing the DNS cache using the command line
You have a direct connection to your provider
The option when your computer is connected directly to the provider, bypassing the router, is now becoming less and less common, since the number network devices is growing steadily. But what to do if you have just such a connection? Eliminate possible problems with drivers as described above, and check that the connection settings are correct. Regarding the settings, the best option would be to contact technical support, since there are a lot of variations.
Nothing helped at all
Maybe you're lucky and your ISP provides access using the new IPv6 protocol, the configuration of which requires knowledge of some subtleties. It should be noted that the expansion of the use of IPv6 is inevitable, since the address space previous version protocol, IPv4 has come to an end, and the global network is growing every day. Since your efforts have been wasted, and your network still hasn’t started working, then there is only one piece of advice - call a specialist. It is quite possible that the problem that has arisen is non-standard or that equipment replacement/repair is required to solve it.
There is Internet access, but the error remains
This situation may well exist. The reasons may be different - most often when connecting through a proxy server. However, there is only one solution. Press Win+R, enter gpedit.msc - this will take you to the local editor group policies. In the menu on the left, go through the following items: “Local Computer” Policy - Computer Configuration - Administrative Templates - System - Internet Communication Management - Internet Communication Settings. Now, on the right side of the window, find and enable “Disable active probing for network connection status indicator.” In Windows 10, this setting is called "Turn off active network connection health checks." Please note that now, even if there is truly no connection, the message will not appear.
Probably many users computer systems Those who use Miniport WAN PPPoE technology or a high-speed connection to connect to the Internet sometimes encounter an ambiguous problem when, instead of the expected access to the Network, a failure message 651 (connection error) appears on the screen. What is this and how to fix this situation? Looking ahead, we immediately note that this is done quite simply.
when connecting): what is this?
First, let's consider the nature of such a failure. Typically, the message text indicates that the modem or router is returning an error when trying to use its settings to connect.
In other words, there is a problem either at the physical or software level that is blocking access. We will not go into detail describing the technologies themselves used to create or establish a connection, but will focus more on the reasons that cause such failures and the simplest methods for correcting them.
Reasons for the error
It goes without saying that there can be quite a lot of reasons why error 651 occurs when connecting to the Internet (Windows systems are taken as an example). From all this diversity, we can single out only those that occur most often and are, so to speak, the main ones:
- damage to equipment and cables at the physical level;
- incorrect operation of the PPPoE client;
- availability of dual network connection;
- connection blocking by antiviruses and built-in Windows tools;
- incorrect parameters in the router settings, etc.
Based on what is presented in the list, we will look for a solution to resolve failure 651 (connection error) for each specific case.
If physical damage is present
First of all, if suddenly a computer or laptop displays warnings of this kind, you should not immediately look for the cause, say, in viruses or in a “crash” in network connection settings. Everything may turn out to be trivially simple: maybe the network cable is damaged, maybe there was a power surge, maybe the connectors are not seated tightly somewhere, but who knows what?
Naturally, it is advisable to check all components or “ring” the cable. However, a simpler option often helps. First, in the warning window, click on the line asking you to reconnect. Who knows, maybe it was a momentary glitch. If this does not help, you can try to completely reboot the computer terminal and, in this case, between turning off and turning on the router again, you need to pause for at least 10 seconds to reset the settings, and then wait for it to fully boot. If this is not done, the system will again display a message like “Error 651 when connecting to the Internet.” On the other hand, this approach may not help if the initial problem of communication failure is much deeper. Let's see what else it could be?
Error 651 when connecting to the Internet: RASPPPoE client failed
When used for creation, failures of this kind are most often observed in the operation of specialized modules, including the client responsible for PPPoE.
Let's take a closer look at this client. Typically, the primary method to correct the situation is to create a new connection.
To do this you need to use a combination Win keys+ R, which brings up the “Run” menu, where the rasphone.exe command is written in the line. Next, you should select one of three options (for PPPoE, a high-speed connection via modem or DSL is used), after which you just need to follow the instructions of the “Wizard”.
Accordingly, the newly created connection must be checked for functionality. If connection error 651 is also observed in the new connection (Windows 7, for example), you will have to check some parameters and settings. First of all, make sure that the router and Wi-Fi module on your computer or laptop are turned on. Perhaps the wrong parameters for VPN networks are set, etc. But first things first.
Presence of a foreign network
One of the reasons for such failures may be the presence of a second connection, for example, when the user’s computer has two network adapters with two parallel communication sessions. In this case, Windows 7 interprets failure 651 (Internet connection error) as an internal conflict when one connection takes precedence over another (in particular, for cases where services are provided by two different providers).
Remember, if you simply disconnect the cable from one network card, there will be no sense. To do this, go to the network management section and shared access and disable one of the adapters there (menu for changing adapter parameters). However, you should not delete it in Device Manager; this may have a negative impact on the system as a whole.
Antivirus and firewall problems
Very often there may be a situation where the connection is blocked for some reason at the level of anti-virus software or the Windows firewall. In such a situation, you can first try disabling the antivirus for a while (many packages provide such a function). However, as practice shows, the firewall is more different here for the worse.
This is something that should be turned off completely. To do this, use the standard “Control Panel”, where you select the appropriate section. The system will issue a couple of warnings, but you should not pay attention to this. By the way, many may wonder why it is necessary completely Yes, just because adding an Internet connection to the list of exceptions will not work in any way. This is not an “exe” or any other executable program file.
Incorrect router and protocol settings
Now let's look at the most common problem, when the router settings go wrong, and the system reports that connection error 651 has occurred. How to fix this situation? First you need to check basic settings the same router.
You can enter them through any of the Internet browsers by entering either 192.168.0.1 or 162.168.1.1 in the address bar (it all depends on the router model). In general, this address can be found on the label below. There you can find out your login and password, if any.
First of all, you should pay attention to the VPN server address (for PPTP and L2PT connections). In addition, for ONT terminals on the router you need to use the “transparent bridge” mode (Bridge), otherwise the system will again display a failure message 651 (connection error) when trying to connect.
Next, you should compare the TCP/IP settings with those provided by your provider when connecting. As a last resort, you can try setting automatic detection and also disabling the use of proxies for local addresses.
Additional actions with the registry for server operating systems
Failure when connecting to the Internet), naturally, can also occur on server Windows versions. In particular, this applies to modifications of Windows 2003 Server. Here the specifics of fixing the problem are somewhat different, although the above methods sometimes help.
But in this case it is better to use an editor system registry, called by the regedit command from the “Run” menu bar (Win + R), where you need to navigate along the HKLM tree branch through the SYSTEM, CurrentControlSet sections and further to the Parameters folder located in the Tcpip directory.
Here, you first need to create a DWORD parameter called EnableRSS and assign it the value 0, and then in the same section - a DWORD parameter called DisableTskOffload with a value of 1. If this particular parameter is already in the registry, you just need to change the value to one. After this, the computer terminal must be restarted for the changes to take effect.
Bottom line
In general, only the most typical cases of type 651 problems are considered here. Situations where problems arise on the part of the provider were not considered (here the user cannot do anything). Also, situations where a reinstallation or update may be required were not taken into account network drivers. Otherwise, as can be seen from all of the above, the problem can be solved quite simply.
A list of all errors that occur when connecting to the Internet and their solutions. Follow all the steps described in our article and solve the problem yourself; if you cannot resolve the error, then contact your provider’s technical support.
Errors with 601-645
Errors 601, 603, 606, 607, 610, 613, 614, 616, 618, 632, 637, 645
These are internal Windows errors, differing in the same debugging algorithm.
To resolve errors you must:
- perform a reboot;
- if errors appear again, you need to scan your computer for viruses;
- if no viruses are detected, they should be removed recently installed programs or cancel last changes V Windows settings(if there were any);
Errors with 604-620
Errors 604, 605, 608, 609, 615, 620 indicate incompatibility of the files of the current Windows configuration with telephone book subsystem remote access.
To eliminate it you need to:
- perform a reboot;
If rebooting does not help, you need to delete and re-create the VPN connection.
List of connection error codes from 600 to 800
Error 600: The operation is not complete;
Error 602: Port in use;
Error 603: Insufficient program buffer capacity;
Error 604: The user provided incorrect information;
Error 605: Unable to set port information;
Error 606: The selected port is not connected;
Error 607: An incorrect event was recorded;
Error 609: The specified device type does not exist;
Error 611: The specified route is not available;
Error 612: Route localization missing;
Error 613: The specified compression is invalid;
Error 614: Insufficient buffer capacity;
Error 615: The specified port could not be found;
Error 617: Modem is turned off;
Error 618: The specified port is closed;
Error 620: Unable to determine endpoint;
Error 621: The system cannot open the phone book;
Error 622: The system cannot load the phone book;
Error 623: The system cannot use the entry for this connection in phone book;
Error 624: The system cannot update the phone book files;
Error 625: The information found in the phone book is incorrect;
Error 626: Row cannot be loaded;
Error 627: Key cannot be found;
Error 628: Connection aborted;
Error 629: Connection interrupted by remote computer;
Error 630: The modem has shut down due to a hardware fault;
Error 631: The modem was disconnected by the user;
Error 634: The computer cannot be registered on the remote network;
Error 635: Unknown error;
Error 636: The parameters of the device connected to the port are different from those expected;
Error 637: Unable to convert detected string;
Error 638: The time allowed for the request has expired;
Error 639: No access to asynchronous network;
Error 640: NetBIOS error detected;
Error 641: The server cannot locate the NetBIOS resources required to support the client application;
Error 642: The NetBIOS name your computer is using is already in use by the remote network;
Error 643: Fault detected network adapter;
Error 644: The function to receive network messages is not available;
Error 646: access to current time days is prohibited;
Error 647: User locked out;
Error 648: This user's password has expired;
Error 649: User does not have access rights;
Error 650: No response from the remote access server;
Error 652: Modem response not recognized;
Error 653: The macro requested by the modem could not be found in the INF file section;
Error 654: The response or command in the INF file section accessed an uninstalled macro;
Error 655: A macro could not be found in the device INF file section;
Error 656: The device INF file section contains something that is not identifiable. Error 657: INF file cannot be opened;
Error 658: The device name in the media INF file or the device INI file is not defined;
Error 659: A media INI file was accessed to an unknown device;
Error 660: There are no responses for commands in the device INF file;
Error 661: Command missing in device INF file;
Error 662: An attempt was detected to install a macro that was not specified in the device INF file;
Error 663: A media INI file was detected accessing an unknown device;
Error 664: There is not enough memory for the system;
Error 665: Detected incorrect configuration modem;
Error 666: The modem is not working;
Error 667: The media INI file cannot be read by the system;
Error 668: Connection failed;
Error 669: Media INI file usage settings are invalid;
Error 670: The system cannot read the name of the section located in the media INI file;
Error 671: The system cannot read the device type of the media INI file;
Error 672: The system cannot read the device name of the media INI file;
Error 673: The system cannot read the usage frequency in the media INI file. Error 674: The system cannot read maximum speed transferring data in an INI media file;
Error 675: The system cannot read the maximum connection speed in the media INI file;
Error 677: a human response was recorded on the other end instead of a dual-up modem;
Error 679: The system cannot detect the carrier;
Error 680: no dial tone detected on the line;
Error 681: a discovery message was received from the modem common error;
Error 695: State machine not running;
Error 696: State machine started;
Error 697: response loop not completed;
Error 699: The received response from the modem resulted in a buffer overflow;
Error 700: The extended command in the device INF file is too long;
Error 701: The modem has switched to a connection speed that is not supported by the COM driver;
Error 703: The connection requires information from you, but the application does not allow user interaction;
Error 704: callback number is invalid;
Error 705: Authorization mode is invalid;
Error 707: An error has been detected that relates to the X.25 protocol;
Error 708: Expiration date account;
Error 709: an error occurred on the server while changing the password, the password is too short or may be the same as the previous password;
Error 710: a serial overflow error was detected when accessing the modem;
Error 711: The Remote Access Manager cannot be started. Information about why error 711 occurred is stored in the event log;
Error 712: Initialization of the two-way port has been detected - you need to wait a few seconds and then dial the number again;
Error 713: Active ISDN lines are unavailable;
Error 714: no available channels ISDN for making a call;
Error 715: Too many errors have been recorded that are caused by poor telephone connection quality;
Error 716: The IP configuration of the remote access service cannot be used;
Error 717: No IP addresses are available during static dialing of remote access service IP addresses;
Error 719: The connection was interrupted by the remote computer;
Error 722: received from remote computer the data is incorrect, which is why it was ignored;
Error 723: Excessively long phone number;
Error 726: it is impossible to use the IPX protocol to dial more than 1 modem at the same time;
Error 728: The system cannot find the IP adapter;
Error 729: Cannot use SLIP before IP protocol is installed;
Error 731: incorrect protocol configuration;
Error 732-733: A conflict has been detected between your computer and the remote one due to PPP control protocols;
Error 734: PPP connection control protocol interrupt detected;
Error 735: the server did not accept the requested address;
Error 736: An interruption in the remote computer control protocol was detected;
Error 737: A loopback has occurred;
Error 738: The server was unable to assign an address;
Error 739: The authentication protocol that is being requested remote server,;
the saved password cannot be used - to resolve the error, you must call back by re-entering the password;
Error 740: A connection script detected that is invalid;
Error 741: local computer the required type of information encoding is not supported;
Error 742: The required encoding type is not supported by the remote computer;
does not support the required data encoding type;
Error 751: the callback number contains invalid characters - to eliminate the error, it is necessary that only the following characters are used in the number: T, P, W, (,), from 0 to 9, -, @, spacebar;
Error 752: detected while processing the script syntax error;
Error 753: The connection cannot be terminated because the connection was created by a multi-protocol router;
Error 754: The system cannot find a multi-channel bundle;
Error 755: The system cannot perform automatic dialing because this connection requires the use of special parameters.;
Error 756: This connection is already in progress;
Error 757: The remote access service cannot be started automatically – Additional information can be found in the event log;
Error 758: Internet connection (shared) is already activated in the current connection;
Error 760: an error was detected when activating routing capabilities;
Error 761: An error was detected when activating Internet connection sharing on this connection;
Error 763: Internet connection sharing cannot be activated due to the presence of 2 or more local network connections;
Error 764: Smart card reader missing;
Error 765: Internet connection sharing cannot be activated due to the presence of a local network already configured to automatically assign IP addresses;
Error 766: The system cannot find certificates;
Error 767: Internet connection sharing cannot be activated because the selected configuration for the private network supports more than one IP address - you must reconfigure to resolve the error local network to use one IP address;
Error 768: Connection failed due to corruption in the encoded information;
Error 770: The connection attempt was rejected by the remote server;
Error 771: Connection failed because the system is busy;
Error 772: Network incompatibility detected hardware a remote computer with the required connection type;
Error 773: The connection could not be made because the number to which the call was made has been changed;
Error 774: Connection failed due to a temporary fault detected - you must reconnect to resolve it;
Error 775: The remote computer blocked the call;
Error 776: The call cannot be connected because the end caller has Do Not Disturb status activated;
Error 777: Connection failed due to a problem with the remote computer's modem;
Error 778: The server cannot be identified;
Error 779: to make a call with this connection, you must use a smart card;
Error 780: The applied function for this connection is invalid. Error 781: Encoding failed due to missing valid certificates;
Error 797: Connection failure. To prevent error 797 from appearing again, most often it is enough to simply restart the computer;
