If the Internet does not connect. Solving the problem with the Internet not working on a PC. Checking your computer settings

Today we are all highly dependent on the Internet. And when it doesn’t work, panic immediately sets in, your heart sinks into your heels and life seems meaningless. It may be funny to you, but for some it really is.

The user is especially lost when the Internet is connected, but does not work. Today I will tell you why this happens and what to do if this happens to your network.

Why doesn't the Internet work?

If you are connected to the Internet, but it is not working, the first thing you need to do is find the cause of the problem. To do this, you need to restart all devices that are connected to the Internet. This means a router, a computer, etc. Most often, such a reboot completely solves all problems with the Internet, and it starts working properly. If, after rebooting the router and computer, you do not get the expected result, move on to the next “therapeutic” procedures.

Today, most people connect to the Internet using a Wi-Fi router. If you have the same, then you need to check whether the Internet access indicator on the router is on or not. For those users who use a TP-Link router, the Internet access signal is marked with a globe icon. On other routers, this signal is most often signed “Internet”.



If the indicator is off, you need to check your router settings. If everything is fine with them, then we call the technical support of our provider and ask why there is no Internet, perhaps just a repair of the highway or network.

But, if the indicator is on, then there is a connection and the provider is not to blame. Check Internet access on other devices. It doesn’t matter what it will be - a phone, a tablet or another laptop. This way you can figure out which direction you should dig next to solve this problem. I’ll say right away that the case when a router is connected to the Internet, which is known to work well, but at the same time it does not distribute it to other devices, is considered a very rare case. The reason for this problem lies in the failure of the router. It's not difficult to fix this. You need to reset all settings to standard and reconfigure it again, remember that after the reset all settings will be lost and the Internet may not work until the router is configured correctly!

Cases often occur when only one device or computer cannot connect to the Internet using a router, but everyone else can easily access it. In this case, you need to look for the cause directly on this device.

If you are connected to the mobile Internet via a USB modem or WiFi module plugged into a USB port, try disconnecting it and reconnecting it. If this doesn't help, try using a different port to connect. Perhaps reinstalling the driver will help you solve this problem.

Checking the Internet connection in Windows

If the Internet is connected to your PC or laptop, but does not work, and you are absolutely sure that the reason for this is incorrect settings, then you need to perform a series of procedures that will quickly solve your problem.

You need to start reconfiguring by pinging any popular site. To do this, press the combination “Win ​​+ R”. This will bring up the “Run” window.

In the text input field, you need to enter the following “cmd” and click on “OK”. If you are not a fan of my site, you can write Google. After that, press enter and wait for the result. If everything is fine, the server will send you something like this:



If the response from the server contains the line “The connection check failed to find the nodepec-komp.com. Check the host name and try again,” then you need to type another command, for example “ping .8.8.8.8”. This is the IP address of the public DNS server from Google, which will always be available. If the computer has access to an external network, then the answer will be the same as in the picture above, but with different numbers after “answer from...”.

If a ping passes through an IP address, but does not open in the browser, then most often this indicates that there is an Internet connection, but the network does not work due to incorrect configuration of the network card, namely, the address is not registered in them or the address is entered incorrectly DNS servers. I'll tell you how to fix this a little later.

If you observe a different response from the server, then you need to check access to the router. We will also check using ping. You can find out the router's IP address on a sticker that is glued to the back of its case. Most often, the IP address of routers is “192.168.1.1” or “192.168.0.1”. The first address is registered on my router, so I received this answer:



If the router pings, but the Internet node does not, then most likely the reason lies again in the settings of the router or in the router itself.

But if the router is not available for server requests, then there is a reason to go into the settings of the network adapter on the computer. But, before doing this, disable your antivirus and firewall, if you have one. Sometimes it is these two “comrades” that cause problems with the Internet.

If after this the Internet does not work, although there is also a connection, press the key combination “Win ​​+ R” again, but now in the “open” field we write “ncpa.cpl.”.

If you have entered everything correctly, the Windows network connections window will open. In it you need to find your active connection and right-click on it, then select “properties”. In the window that opens, look for the line “IP version 4 (TCP/IPv4)” and double-click on it to open the protocol parameters .

Check “Obtain an IP address automatically” and “Obtain a DNS server address automatically”. Click OK and check the result in the browser.

If this does not help, then check the box “Use the following addresses.” You need to register the IP address from the subnet of your router. If it has IP 192.168.0.1, then set the computer to 192.168.0.2. If the router uses 192.168.1.1 , then on the PC it will be 192.168.1.2. Mask 255.255.255.0. You must specify the router address as the gateway. You can also specify the server from Google as the preferred DNS server.

In any case, watch my video on speeding up the Internet, if you apply all the settings, the Internet should work.

Increasing Internet speed to the maximum!


I hope that at least one of the methods will definitely help you regain access to the Internet. If none of the options for solving the problem helped you, then you will have to call a specialist who will determine the true cause and solve the problem. But I’m sure it won’t come to that and you’ll fix everything yourself.

For many of us, the Internet has become an integral part of life. On the World Wide Web we communicate, find the information we need, exchange it with other people, make purchases and much more. It is impossible to imagine a modern person who would not go online at least once and who would not once encounter the fact that for some reason there is no Internet connection. There are many devices for working with the World Wide Web: personal desktop computers, laptops, smartphones, tablets. All of them, to one degree or another, connect to the Internet. Some using a cable, others using a Wi-Fi connection. The second method is more convenient than the first, because I remember how tired I was of these wires all over the apartment, how they always got tangled. Most modern devices already use only Wi-Fi or mobile Internet.

Each of us has experienced problems with Internet access to one degree or another. In such cases, we begin to get nervous, sometimes even panic, because we had to send a necessary document or receive an important letter. But your device refuses to do this and cannot open anything, disrupting the intended deal or important negotiations.

What do we do in such cases? Right. We begin to independently look for ways to solve this problem or turn to specialists. It would seem that calling a specialist is the best way, but it will also take the most time. Sometimes in remote towns and villages this is completely impossible. But you can fix everything yourself if you know where and what to look for, and know how to look for ways to solve the problem. Let's take a closer look at the reasons for the Internet not working and try to find ways to solve this problem.

You forgot to pay for the Internet

Quite often we forget whether we have paid for services to provide network access. There are many reasons: either there was a lot of work, then there were problems with money, or they simply forgot to do it. To check your personal account, you need to go to your personal account on the official website of your provider. The provider should automatically create it for you immediately after concluding a contract for the provision of services. Often, personal account information must be specified in your agreement with the provider. After logging into your personal account, check whether there are funds in your account, as well as your tariff and its capabilities.


Internet provider personal account

Maybe you need to urgently run to the terminal and pay bills, or use a credit card for this. Whichever is convenient for you. Some providers may immediately disconnect you from the service, while others may simply reduce the speed of your Internet connection. Therefore, when you launch the browser, quite often in a similar situation you can see a message from the provider asking you to pay for the service.

Interruptions on the part of the provider

You have checked in your personal account that you still have funds to pay for the service, but Wi-Fi still does not work. You need to determine whether there is a connection in principle. The provider installed a cable into your house or apartment. It is this one with the connector at the end that you need to connect to the laptop if it has a special connector called RJ-45. When you connect, you will see whether there is a connection or not. You may need to check your connection settings. To do this you need to follow some simple steps.

  1. Right click on the main button Start(on the left side of the taskbar) and select Network connections.
  2. In the window you will see Network status.
  3. If you have signed that the network cable is not connected, then check the cable. It could be bent or broken, or the connector could be damaged. Then they need to be replaced. Cable replacement is mainly carried out by the provider's engineers, but you can replace the connector yourself or ask a friend who knows how to do this. But it’s still better to call a specialist.
  4. If the cable is OK, then you need to check your Internet connection settings. To do this, in sections Wi-Fi and Ethernet We check whether the connection itself is turned on.

    5. Wi-Fi connection

  5. Did turning it on change anything? Then we'll see Adapter settings. If there are red crosses everywhere, then right-click and enable the required connection.
    network connections

    But the Internet still doesn’t work? This means you need to perform some additional settings. To do this, double-click on the Wi-Fi connection and go to Properties. You will see the components used by this connection. Of particular interest to us is the protocol component IP version 4 (TCP/IPv4).

    IP4v protocol

  6. Also check the protocol properties, which can be accessed by double-clicking the mouse button. Please remember that there are two types of IP addresses: static and dynamic. In general, the most commonly used is a dynamic IP address. Therefore, we receive its settings on our laptop automatically, that is, the option must be active Obtain an IP address automatically. IP version 4 properties

    You also automatically receive DNS server addresses. It happens that some providers use a static IP address. In this case, you must know it (indicated in the contract or in the client panel on the website) or check with your provider for your IP address and DNS server addresses, which can be entered manually. All that remains is to confirm the changes and the connection should appear.

There are times when it is necessary to re-create the connection. Basically, this often happens if you have a new device or you have recently reinstalled the operating system. To do this you need:

  1. Click on Search, which is located next to the button Start and write there Control Panel. Let's open it.
  2. Go to section Net And Internet.

    Network and Internet

  3. We need a Network and Sharing Center. You can also get here if you follow the path Start - Settings - Network And Internet - Wi-Fi - Network Management And shared access.

    network management

  4. Create a new network connection

    new connection

  5. We connect to the network by following the prompts, step by step and sequentially filling in all fields with data. In general, it is advisable to have an engineer from your provider handle this. But, if such a need arises, then there are no particular difficulties in setting it up.
  6. If after all the manipulations your Internet connection still does not work, then your network card may have burned out. The easiest way to check this is to connect the cable to another device and perform the settings listed above.

If the Internet does not work via cable on another laptop or desktop PC, call the provider’s technical support and find out the reason. Perhaps they had some problems or malfunctions.

Wi-Fi router frozen


router frozen

It often happens that your Wi-Fi router is to blame for the lack of Internet connection. In general, from my own example, I can say that I have never heard or read about a miracle router that would never freeze or have operational problems. The reason is that the Wi-Fi router is connected to the power grid, and there are power fluctuations there. It’s trite, but your router may simply overheat and malfunction. Sometimes the provider carries out various work on its servers, which can change the settings of the same router. To return it to normal life, you need to unplug the router from the socket. Wait a couple of minutes. Then plug the plug into the outlet. The router will turn on again, configure itself, and there is a high probability that the Wi-Fi connection will successfully return to your device.

Experienced users will now say that there are still ways to reboot the router and they will be right. Naturally, there is a Reset button on almost every router, and on some there is an On/Off button. It is possible to reboot the router through its settings, which we will talk about a little later. But believe me, not every user will look for these buttons and settings in the browser. Simply unplug the cord from the outlet and then plug it in again. Moreover, this will not cause any harm to the Wi-Fi router.

Wi-Fi router settings

Nowadays, even a child has heard about Wi-Fi routers, which can be found in any house or apartment. I think that no one needs to explain that it is thanks to them that we can receive a Wi-Fi signal and enjoy the benefits of the World Wide Web. But sometimes they also have problems and failures.

To open the router settings and find out if it is the reason for the lack of Internet, you need to type the address http://192.168.1.1 in your browser (it may be different - look on the router itself, usually on the sticker below) and enter your username and password (most often admin/admin). You will immediately be taken to the settings of the router itself.


router settings

Sometimes the cause of settings failures is the unupdated firmware of the Wi-Fi router. Therefore, I strongly recommend that you at least occasionally check for updates. I once had an unpleasant experience. Wi-Fi worked poorly all the time, and on all devices. I did everything I could, but there was no result. As soon as I updated the router firmware, everything worked immediately. It turned out that Asus made some significant changes to the firmware of its routers, closing a critical vulnerability.

It is also worth paying attention to:

  1. Connection type (taken from the contract or from technical support)
  2. Network name
  3. Encryption type (WPA2/PSK)
  4. Virtual server mode activity - DCHPВ

Basically, one of these steps should help you gain access to the network or diagnose the problem. And in general, in the settings you will see all the useful and necessary information about your router and Internet connection. Don't be afraid to ruin something. Just restart your Wi-Fi router and it will automatically pick up all the necessary settings. As a last resort, you can reset the settings and configure the router again.

Poor Wi-Fi coverage and range

A Wi-Fi router has a certain coverage area, or rather, signal propagation radius. The more modern and powerful the router, the greater the signal radius. Sometimes we are at a certain distance from the router and realize that the signal is very weak. There are ways to solve this problem. Now there are many devices on sale called . They are also called repeaters or repeaters. With the help of such devices, you can expand the coverage area of ​​your router, especially if it is a large office or country house. If you like to work on the veranda or in the attic, under the roof, then be prepared that the roof will screen the connection or simply the reason for the slow Internet is that the distance (in the case of a weak Wi-Fi router) to the access point is too long. Then try to move closer to your Wi-Fi signal device.

When using Wi-Fi Internet with a 3G modem, or distributing it from a phone, there may be no network coverage at the point where you are and therefore Wi-Fi does not work. For example, on the highway or outside the city. Check your mobile phone to see if there is a connection. There are times when the smartphone itself needs to be rebooted, because it now works as a Wi-Fi access point, that is, similar to a router. Wireless Internet on a laptop will not work if the tower is located far away. This is how the mobile Internet works.

Problems with network adapters

To receive a Wi-Fi signal, special network adapters from various manufacturers are installed in your laptop or desktop PC. Of course, there are problems with him too. The most common is incorrect operation of network adapter drivers. You can fix this problem yourself if it exists.

To do this you need to log in Device Manager. For me personally, the shortest way there is to right-click on the button Start and, in the list that appears, select Device Manager.


There you will see the Network adapters section. This is where we need to go. Open it and check if there is a yellow exclamation mark on any network adapter.

There are often cases that for some reason the system itself has disabled the network adapter. We just need to turn it on. To do this, right-click on the desired adapter and select the option Engage. We wait for a while and if the exclamation mark disappears, then the problem has been fixed.


enabling the network adapter

If the problem still exists, then right-click to call up this context menu again, but now select Update driver.


update driver

A page will pop up in front of you where you need to choose how to update the driver. I would suggest choosing a link to Search for drivers on this computer.


search for drivers

Now I’ll explain a little why. When installing Windows, the system itself pulls up the correct drivers for the devices on your laptop. Very often, a new driver from the manufacturer can cause the device to malfunction. A few more moments and the network adapter has been updated, this will be visible by the disappearing yellow exclamation mark.

Sometimes not everything happens so well and smoothly. We have to work a little on the network adapter driver. To do this, double-click on it and an extended settings panel will open in front of us. Let's go back to the section Driver, but now we are no longer trying to update it, but click on the option Remove device.


remove device

There is no need to worry that you will damage your laptop. It is enough to reboot it and the system will automatically install the network adapter, but now fixed. Although I do not recommend using this method often, only as a last resort.

Troubleshoot using Windows 10's built-in utility

I have already written and said more than once that Microsoft, with the release of a new operating system, has undergone a radical rethinking of the operation of the system and devices based on Windows 10. Previously, experienced users looked for third-party utilities and programs to fix problems with the operating system. But now there is a whole section called Troubleshooting. He was and is in Control panels, but few people knew about it or used it. Now it's easy to find the section if you follow the path Start - Settings - Update And Security - Elimination problems.


troubleshooting

In this section, you can fix any of the existing problems of your laptop. We will launch utilities to correct the work Internet connections And Network adapters. Everything is quite simple: click on the desired section and press Run the troubleshooter.


launch the utility

The utility will launch and check your device. If there are problems, then you will see a record about it and the already familiar yellow exclamation mark or even red, which will make it clear that the problem is serious and needs to be solved.


troubleshooting
diagnostics completed

In this case, sometimes it helps Network reset, which will remove and then reinstall network adapters and return their components to their original settings. In simple words, it will return everything as the system installed it at the very beginning - it will roll back the changes that caused the problems. Sometimes this problem is a virus or incorrect user actions. By performing a network reset, you will help the system fix everything on its own. Don't be afraid, this will not lead to any loss of data or settings of programs and applications.



Let's sum it up

Once again, we list the main steps that must be followed if you want a Wi-Fi connection to work on your laptop:

  1. Check your account - this is often the reason why the Internet on a laptop via Wi-Fi is slow.
  2. Reboot your Wi-Fi router - it might freeze.
  3. Go to your router settings. Check the firmware and basic parameters of IP addresses and DNS server addresses.
  4. Check the integrity of the cable by plugging it into the laptop, if possible. Next we check our connection. If it has not been created before, create it. If a connection appears, the problem is in the router or Wi-Fi drivers on the laptop. Update them.
  5. Try connecting the cable to another laptop or PC. If the connection works, your network card is disabled or burned out. If not, there is a problem on the provider’s side.
  6. Use the built-in Internet connection troubleshooter. Perform a network reset to return your network adapters to their original settings.

As you can see, there is nothing complicated or requiring special knowledge in solving this problem. All of the above will help save money, and most importantly, save your nerves.

The Internet is an integral part of our life. Lack of network is a serious problem for the user. You don't always have time to call your provider, but, fortunately, you can troubleshoot problems yourself. Below you will read about common causes of Internet problems and how to fix them.

Possible reasons for the lack of Internet on Windows 7

There are several reasons for the lack of Internet. Some of them relate to computer drivers and its equipment, others affect system errors and the lack of correct network settings.

The most common reasons for lack of Internet:

  • mechanical damage to the cable or ports;
  • lack of a network card or its drivers;
  • incorrect connection settings on the computer or router;
  • presence of virus software.

The Internet may also be unavailable due to a debt on a personal account or due to a line failure. Before attempting to troubleshoot problems, check to see if these issues are causing them.

How to check network status

Among the problems with the Internet, we can highlight those that are most common and occur periodically for most users. Resolving them can be very simple. The first thing to do is check the network status.

You can do this in two ways:

In both cases, your network status will be described below your network icon.

Unidentified network without internet access

If the computer “sees” the network and connects to it, but does not gain access to the Internet, the network status will be called “Unidentified network. Without access to the Internet." What to do in this case?


The computer “sees” the network and connects to it, but does not gain access to the Internet

Rebooting the router

If you have a router installed, the first thing to do is reboot it. It may simply not have time to update the data, and because of this, access to the network will be lost. The reboot is performed in the following order:

  1. First, the router is disconnected from the network. It is important to unplug the cord from the outlet, and not to reboot using the button on the equipment - you need to stop the flow of electricity for a while.
  2. Then the router should be left turned off for 10–15 seconds.
  3. After this, the router is connected back to the network and wait until the indicators on it light up.

After the indication appears on the router, you can check whether Internet access is available. Usually, after a reboot, the Internet appears within 7–10 seconds.

Checking network settings

Network settings are data that allows the computer to connect to the network distributed by the provider. These settings are issued by the company providing Internet access (usually they are specified in the service agreement). Sometimes the settings on your computer go wrong, and because of this, the device cannot connect to the Internet.

In order to check the network settings, you need to open “Protocol Properties”. You can do it like this:

  1. Go to “Control Panel” through the “Start” menu.
    "Control Panel" is located in the right "Start" menu
  2. Select "Network and Internet".
    In order to find the desired section, you should select the “Category” viewing option in the upper right corner of the screen
  3. Open the Network and Sharing Center section.
    In the Network Control Center you can check the connection status, create a new network, and carry out almost any action with your Internet connection
  4. On the left, find the “Change adapter settings” section.
    Find the section "Change adapter settings"
  5. In the list of networks, select the one you need, right-click on it and find the “Properties” item. Only an administrator can open Properties.
    The desired network will be called “Local Area Connection” or “Ethernet”
  6. In the list, find the item “Internet Protocol Version 4”, select it by pressing the left mouse button once. After this, the “Properties” button under the list is activated, you need to click on it.
    Selecting an item is done by clicking the left mouse button once. There is no need to uncheck the box next to the item.

When the window is open, you still need to understand what settings should be entered. There are three options:


Let's figure out what the IPoE and PPPoE protocols are, but we won't go into terminology. It is enough to understand what protocol is used on your communication line. To do this, just look at the network settings issued by the provider (specified in the contract).

The settings can be the following:

  • password and login are used on the PPPoE protocol,
  • IP address, subnet mask, gateway and DNS are used on IPoE.

If you are using PPPoE and you are connected directly, that is, you are not using a router, after checking the settings through the protocol properties, you need to recreate the network.

  1. Return to Network and Sharing Center.
    This way only PPPoE connection is configured. To configure a wired IPoE connection, use the protocol properties
  2. Open the “Create and configure a new connection” item.
    Switching items is done by single-clicking the left mouse button
  3. Select "Create and configure a new network" and click "Next".
    The selected item will be highlighted with a bright blue background
  4. Click on the "High Speed" option.
    It may take several minutes to wait while searching for available connections
  5. If an error appears, select “Create the connection anyway.”
    This error appears quite often, but the connection can still be created
  6. Next, you will need to enter the network settings, as well as the network name - this is the name of the connection. You can use the name of the provider company or something else.
    The connection name is its name, and the username and password are the network settings. It's worth noting that the password has nothing to do with the Wi-Fi key

After this, the network will be reconfigured, and you will only have to check whether you have access to the network.

Video: checking network settings on your computer

Resetting TCP/IP Settings

Sometimes problems can be caused by internal system errors. TCP/IP is a set of network protocols responsible for data transfer. You can reset it as follows:


Checking drivers

The reason for the lack of access may be outdated drivers (usually this problem is associated with a recent update of the operating system). Let's check their condition.


In addition, by right-clicking on the driver name, you can select “Uninstall”, and then restart the computer. Then when you turn on the system will automatically install the missing driver.


After removing the drivers and restarting the computer, the system will automatically install the appropriate drivers

If there is an exclamation mark next to the driver icon, you will need to completely reinstall the drivers and check the functionality of the network card installed in the computer.

The default gateway is not available

Network diagnostics will help you detect the following problem. Right-click on your connection icon and select “Troubleshooting”.


By right-clicking on the icon you can open the “Network and Sharing Center”

If you receive a message about the gateway being unavailable after performing a system diagnostic, the following steps may help.

Prohibit disabling the network adapter to save energy

Sometimes the system turns off the network adapter - the device that allows you to connect to the Internet - to save power. Try disabling this option.

  1. Find "Device Manager" through the search bar in the Start menu.
    Opening "Device Manager" through search is not the only way, but it is the most convenient
  2. Expand the “Network Adapters” tab, select the one you need, and right-click on it.
    In the context menu, click on “Properties”
  3. Select "Properties" and open the "Power Management" tab.
    Changing these settings will help solve the problem of the Internet disconnecting after the computer goes into sleep mode
  4. Uncheck the box next to “Allow the computer to turn off this device to save power” and save your data.
    After changing the settings, do not forget to save them by clicking on the “OK” button

Updating or reinstalling drivers

You can also update drivers through Device Manager: expand the Network Adapters tab, right-click on the network driver and select Update or Uninstall, then restart your computer.

If the action does not help, you can download drivers from their manufacturers' websites and install them yourself. Typically, manufacturers offer to download drivers in an “.exe” file format, so to install, you only need to run the downloaded file and accept the agreement.

Video: how to reinstall drivers yourself

When connecting to the Internet through a router, error 651 occurs

This error occurs when trying to connect using the PPPoE protocol. It is rare, but it happens that users create a new high-speed connection while the provider is using the IPoE protocol. Therefore, first of all, make sure that you are using the PPPoE protocol.

After this you will need to recreate the connection. The process is described in detail in the “Checking network settings” section (all you need to do is create a new connection through the “Network Control Center”). If this doesn't help, read on.

Disabling antivirus

Sometimes antivirus programs block access to the Internet. Often the solution to the problem is to disable the antivirus. Right-click its icon in the Control Panel and select Disable. Sometimes antiviruses block access to the network even in a “sleep” state, so you can try not only disabling, but also completely removing this software. If this action helps, please report the situation to antivirus technical support.

Problems with the router

The cause of the problems may be several problems related to the router:

  • incorrectly connected cable;
  • incorrectly entered settings.

First try the following:

  1. Disconnect the router from the network.
  2. Without connecting the router, unplug the network cable from it and plug it back into the WAN/INTERNET port, making sure that the plastic clip on the plug clicks when connected.
  3. If the cable goes from the router to the computer, disconnect it from the LAN connector on the router itself and from the network card connector on the computer, and then connect it back.
  4. Connect the router to the network.

If access does not appear, check the network settings entered on the router. In order to log into the router, you will need to enter “192.168.1.1” or “192.168.0.1” in any browser (in the address bar). Sometimes the address at which you can log into the router is different, so if you cannot log in through the specified addresses, check the information in the instructions.


Files cannot be downloaded from the Internet

It may also happen that Internet access is active, but files are not downloaded. This problem is usually associated not with the Internet itself, but with the computer and software.

What you can try:

  • try to download a file from another source - perhaps you are unable to download something simply because the resource does not support downloading;
  • try downloading through other browsers;
  • check your computer for malware using any official antivirus.

Multimedia does not work on the Internet

It happens that the Internet works, but video or audio materials are not played. What to do in this case? First, check if the files downloaded to your computer are playable. Perhaps the cause of the problem lies directly in the computer's sound settings. If files are played from your computer, but not from the Internet, read on.

The first thing you need to do is understand why this problem occurs. It may be a browser error or lack of plugins. To get your computer working properly, do the following:


PPPoE diagnostics

Additionally, in order to find out the causes of errors when using PPPoE, you can use the Troubleshooting Center. Then the system will independently check for errors and offer possible solutions.

PPPoE (Point-to-Point Protocol over Ethernet) is a communication protocol over an Ethernet network that operates on a point-to-point basis and provides the user with a number of capabilities: encryption, authentication and data compression. It is necessary for the user authorization system, which makes it easier to track the time of provision and payment of network services.

Right-click the network connection icon and click the Diagnose Problems button. After this, an analysis will be performed, Windows will try to cope with the difficulties on its own, and then prompt you to perform several actions.

Error 619

Restart your computer and disable all security systems: antiviruses and Windows Firewall. The latter is disabled in the following way:


Error 633

There is only one solution:

  1. Restart your computer.
  2. Try connecting to the Internet again.
  3. Create a new connection.

Error 638

Main causes:

  • damage to the network cable;
  • malfunction of drivers or network card;
  • incorrect connection settings;
  • problems with network equipment (router);
  • presence of viruses on the computer.

First of all, do two things: check the integrity of the cable and the presence of indications on the router. Never neglect these steps when you have problems with the Internet, so as not to waste time trying to solve a problem caused by mechanical damage.

It is clear that if the cable is damaged, you need to call your provider. But if there is no indication on the router (which indicates that the device is de-energized), you should try to reconnect the router to another outlet before replacing it.

After checking the functionality of the router and the integrity of the cable, check your computer for viruses with any antivirus program.

If the above does not help, re-create the network connection - check the correctness of the entered settings both on the router through its settings, and on the computer itself through the protocol properties. Both actions are described in detail in the previous paragraphs of the article.

Error 691

The only reason for error 691 to occur is an incorrectly entered password and login (network settings). Therefore, the first thing you need to do is recreate the connection. The process has already been described earlier - you need to go to the “Network Control Center”, select the “Create a new connection” option and then enter the correct network settings. After this, restart your computer and check your internet connection.

If the action does not help, report the problem to your provider. There may have been a line failure that caused the error.

Error 720

The easiest way to solve this problem is to reinstall the operating system. To do this, just download the operating system file to disk from the Windows website (or purchase the disk in the store) and run it on your computer.

You can also try updating the TCP/IP protocol. The action is described above, but you can also perform a deeper operation by completely reinstalling the stack. Reinstalling the stack yourself is dangerous - you will have to work with system files, and their damage will affect the operation of the computer. Therefore, try simply updating the stack, and if the action does not help, contact your provider or professional technician for help.

Video: connection errors via PPPoE connection and their elimination

Network cable not connected

If, when checking the connection status, a message appears that the network cable is not connected, the first step is to actually check that it is connected correctly and is not damaged. If possible, try using a different network cable.

Make sure the cable is connected correctly. On the router, the network cable must be connected to the WAN or INTERNET port, and the cable leading from the router to the computer must be connected to the LAN connector. There is usually only one port on a computer, so it will be difficult to make a mistake.


The WAN or INTERNET port is used to connect a network cable to the router, and the LAN ports are used to route cables to computers

Next, check the status of the router (if you have one). Its indicators should light up as usual. If there is no indication, reconnect the router to another outlet, try resetting the settings on the router (using the “Reset” or “Reset” button) and entering them again. You should reset the settings only if you are confident that you can configure the router yourself.

Also check the status of your network adapter drivers and try updating them.

Video: checking the port on the network card and the WAN port on the router

Additional check of security settings

Security settings can also be to blame for many of these problems. This applies to the case when the PPPoE protocol is used. Therefore, if the proposed operations do not help solve your case, try checking your connection security settings.

  1. Open the "Network Connections" section.
  2. Right click on your connection.
  3. Open the “Security” section and set the use of “Unsecure Password” in the list that opens.

These are the main ways to diagnose connections on Windows 7 and troubleshoot problems. Do not forget that the reason for the lack of Internet may be a simple debt or a breakdown on the line. If the methods described above do not help you, contact your provider so that technical staff can diagnose and solve the problem on their end.

The laptop is convenient because it has a built-in wifi module and you can do without pulling cables. But sometimes something unpleasant happens - the Internet on the laptop does not work. Let's figure out why and what to do in this situation.

Why does the Internet not work on a laptop?

There may be several reasons:

The first is that you forgot to pay for the Internet, and the provider has limited access. You need to go to your personal account (data from it must be specified in your agreement with the provider) and check the status of your account. There is a connection, but the data is transferred very slowly? Maybe your Internet speed was cut off for non-payment. Some companies do this. For example, Beeline or Rostelecom.

The second is interruptions on the part of the provider. If the account is in order and there is money, try to find out if there is a connection in principle. To do this, connect the network cable directly to the laptop and check if the Internet connection works. No? Check settings:

In the case when you do not have a cable connection at all (you recently changed the OS), then you need to create one. To do this you need:


Didn't help? Connect the cable to another laptop or PC. If the network appears, your network card may have burned out.
If the Internet does not work on another laptop via cable, call the technical support of your provider and find out the reason.

The third is poor coverage. When using Internet wifi with a 3G or 4G modem, or distributing it from a phone, there may be no network coverage at the point where you are and wifi does not work. For example, on the highway or outside the city. Check your mobile phone to see if there is a connection. Wireless Internet on a laptop will not work if the tower is located far away.

Fourth, you and your laptop have gone beyond the coverage of your wifi router. For example, you are outside the city in the country. The router is installed in the house, and you are trying to get wifi in the attic, under the roof. Be prepared that the roof will screen the connection or the distance is simply too long (in the case of a weak wifi router). Try moving closer to the router. The connection may begin to work.

Fifth, there are problems with the wifi router and for this reason the Internet on the laptop does not work via wifi. Try rebooting it. To do this, simply unplug its power supply, wait 30 seconds and plug it in again.

Sixth - the drivers have fallen off. Check if everything is ok with the software. To do this, go to Device Manager and check if there is a yellow exclamation mark on any network adapter. In the screenshot there is a red circle around where the yellow icon may appear.


If there is one, right-click and select the desired command.


Update your drivers.

Seventh – the network adapter is disabled. Hover your mouse pointer over it, right-click. If you see the “Enable” command, it means it was disabled for some reason.


Check all adapters.

Eighth – the wifi router settings have been lost. Enter the address http://192.168.1.1 in your browser (it may be different - look on the router itself) and enter your login and password (most often admin/admin). In the window, check all connection settings:

  1. Connection type (taken from the contract or from technical support)
  2. Network name
  3. Encryption type (WPA2/PSK)
  4. Virtual server mode activity virtual server mode - DCHP
    Basically, one of these steps should help you gain access to the network or diagnose the problem.

Once again, we list the main steps if the Internet on a laptop does not work well via a wifi router or it has stopped working altogether:

  1. Check your account - this is often the reason why the Internet on a laptop via wifi is slow.
  2. Reboot your wifi router - it might freeze.
  3. Check your router's wifi settings.
  4. Check the integrity of the cable and plug it into the laptop and check the connection. If it has not been created before, create it. If a connection appears, the problem is in the router or wifi drivers on the laptop. Update them.
  5. Try connecting the cable to another laptop or PC. If the connection works, your network card is disabled or burned out. If not, there is a problem on the provider’s side.

Have a great day!

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