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In this article we will look at a rather ambiguous problem: there is a connection on the network, but in the browser it is impossible to go to some web resource. It’s true, sometimes a situation may arise in which the notification area will clearly indicate that the user has access to the Internet, i.e. there is no red cross or yellow exclamation mark on the connection icon, but the browser persistently tries to prove the opposite to it, producing various errors and notifications of problems.

Reading these lines, you have probably encountered this strange problem yourself. Luckily, there are a number of methods you can use to try to eliminate this problem. It is also worth noting that this problem can occur on absolutely all versions of the Windows operating system, connection types and browsers, so no one will be left behind. So, let's see what you can do if network access is observed, but the browser refuses to work.

Well, as we said at the very beginning of the article, the problem is extremely ambiguous - and there can be a huge number of reasons behind it. However, we recommend that you simply follow a series of several solutions that will probably be able to get you out of this not very clear situation. Let's see what you can do...

Change the network connection DNS server address

The very first thing to do is try using a different DNS server to see if the problem is with yours provided by your ISP. The thing is that sometimes the provider’s DNS server may experience some problems during its operation, as a result of which the connection to the network technically remains, but it becomes impossible to switch to any web resource. As a rule, providers solve such problems extremely quickly, however, you can check this probability simply by using the services of Google's public DNS servers.

How to do it? You just need to change the DNS server address for your network connection and you're good to go. This is done simply (the steps are carried out using the Windows 10 OS as an example, but you can use them for other versions of the system):

  • Right-click on the network connection icon in the notification area and select “Open Network and Internet Settings”;
  • then click on the option “Configure adapter parameters”;
  • Find your network connection (adapter) in the new window and double-click on it with the left mouse button to go to properties;
  • then click on the “Properties” button;
  • select “IP version 4” or “IP version 6” (depending on the type of your network connection) and click the “Properties” button;
  • check the box “Use the following DNS server addresses”;
  • enter your address 8.8.8.8. for main and 8.8.4.4. for an alternative DNS server;
  • save changes.

After changing your network connection settings, try logging into your browser and going to some web resource. As a rule, this problem still arises due to the provider’s DNS server being temporarily down, which, as you already know, can be easily bypassed.

Well, did you manage to fix the problem? If not, then let's move on. And then we have another solution that concerns DNS.

Clear the DNS cache on your computer

You may have lost the ability to access web resources through your browser due to a DNS cache that has accumulated on your system. This happens sometimes - and this problem is solved using a simple command entered in the system console.

So, to reset the DNS resolver cache, you need to do the following:

  • press the key combination Windows+X;
  • open the console and enter the command into it ipconfig/flushdns and press Enter;
  • wait until the command completes and close the console.

Open your browser and try to visit a website. If the result is zero, then try restarting the computer after executing the command, and then check the browser again. It didn’t help - we move on.

Disabling the proxy server in connection settings

Another reason why you might have difficulty navigating to various resources on the network is the activated function of using a proxy server for local connections. You may have activated this feature yourself, or perhaps some application on your system did it. One way or another, you need to check if it is enabled. To do this, do the following:

  • click Windows+S;
  • enter “Control Panel” into the search engine and select the found system element;
  • open the “Browser Options” section in the panel;
  • go to the “Connections” tab and click on the “Network Settings” button;
  • if there is a checkmark next to the option “Use a proxy server for local connections (does not apply to dial-up or VPN connections)”, then uncheck it and save the changes made;
  • restart your computer.

If for some reason you actually had this function activated, then after disabling it, open your browser and check if you can go to some page on the Internet.

Reset your network connection settings

Who knows, maybe something was changed in your network connection settings, after which you can no longer use it normally to access the Internet. Fortunately, you can easily reset these settings using a few commands. To apply them you need to do the following:

  • press the key combination Windows+X;
  • select “Command Prompt (Administrator)”;
  • Having opened the console, enter the following set of commands into it:
    • ipconfig /flushdns
    • ipconfig /registerdns
    • ipconfig /renew
    • ipconfig /release
  • Once you've finished entering commands, restart your computer.

Open your browser again and check if everything is in place. As a rule, by this point many users are able to fix the problem. However, if it didn’t work out for you, then we have one last piece of advice for you: use some kind of antivirus and scan your system for viruses. Yes, if you still haven’t been able to use your network connection normally, then most likely there is some kind of virus involved that has entered the system.

Found a typo? Select the text and press Ctrl + Enter

This instruction contains step-by-step information on what to do if the Internet does not work on a computer with Windows 10, 8 and Windows 7 in various scenarios: the Internet disappeared and stopped connecting for no reason via the provider’s cable or via a router, the Internet only stopped working in the browser or certain programs, works on the old one, but does not work on the new computer and in other situations.

Note: In my experience, about 5 percent of the time (and that's not a small number) the reason the Internet suddenly stops working is with the message "Not connected. There are no connections available" in the notification area and "Network cable is not connected" in the list of connections indicates that the LAN cable is really not connected: check and reconnect (even if visually it seems that there are no problems) the cable both on the side of the computer's network card connector, and from the LAN connector on the router, if the connection is made through it.

If the first option does not suit your situation, then I recommend following these steps to check your Internet connection:


Let's stop at point 6 - the local network connection shows that everything is fine (on, there is a network name), but there is no Internet (this may be accompanied by the message “No access to the Internet” and a yellow exclamation mark next to the connection icon in the notification area) .

LAN connection is active, but there is no Internet (no Internet access)

In a situation where the cable connection works, but there is no Internet, there are several common causes of the problem:

  1. If the connection is made through a router: there is something wrong with the cable in the WAN (Internet) port on the router. Check all cable connections.
  2. Also, for the situation with the router: the Internet connection settings on the router have gone wrong, check (see). Even if the settings are correct, check the connection status in the router’s web interface (if it’s not active, then for some reason the connection cannot be established, perhaps the 3rd point is to blame).
  3. Temporary lack of Internet access on the part of the provider - this does not happen often, but it does happen. In this case, the Internet will not be available on other devices via the same network (check if possible), the problem is usually fixed within a day.
  4. Problems with network connection settings (DNS access, proxy server settings, TCP/IP settings). Solutions for this case are described in the article mentioned above and in a separate material.

For the 4th point of those actions that you can try first:

If these two methods do not help, try more sophisticated methods of solving the problem from the separate instructions given above in paragraph 4.

Note: if you have just installed a router, connected it to your computer with a cable, and there is no Internet on the computer, then most likely you simply have not configured your router correctly yet. Once this is done, the Internet should appear.

Computer network card drivers and disabling LAN in BIOS

If the problem with the Internet appeared after reinstalling Windows 10, 8 or Windows 7, or in cases where the local network connection is not listed in the list of network connections, the problem is most likely caused by the fact that the necessary network card drivers are not installed. Less often - because the Ethernet adapter is disabled in the BIOS (UEFI) of the computer.

In this case, you should perform the following steps:


Perhaps in this context it will be useful: (if there are unknown devices in the list in the task manager).

Network card parameters in BIOS (UEFI)

Sometimes it may turn out that the network adapter is disabled in the BIOS. In this case, you definitely won’t see network cards in the device manager, and local network connections in the list of connections.

The parameters of the computer's built-in network card can be located in different sections of the BIOS; the task is to find and enable it (set to Enabled). This might help: (also relevant for other systems).

Typical BIOS sections where the required item may be located:

  • Advanced - Hardware
  • Integrated Peripherals
  • On-board device configuration

If the adapter is disabled in one of these or similar sections of the LAN (may be called Ethernet, NIC), try turning it on, saving the settings and restarting the computer.

Additional Information

If by now you have been able to figure out why the Internet is not working, as well as making it work, the following information may be useful:

  • In Windows, Control Panel - Troubleshooting has a tool to automatically fix Internet connection problems. If it does not fix the situation, but provides a description of the problem, try searching the Internet for the text of the problem. One of the common cases: .
  • If you have Windows 10, look at the following two materials, they may work: , .
  • If you have a new computer or motherboard, and your ISP restricts Internet access by MAC address, you should tell them the new MAC address.

I hope that one of the options for solving the problem with the Internet on a computer via cable was suitable for your case. If not, describe the situation in the comments, I will try to help.

There may be no Internet on a PC or laptop for a number of reasons that are not always obvious. However, do not despair, because correcting the situation and regaining access to the network is often very simple.

Why is there no Internet on a computer or laptop?

The Internet is a collection of networks connected to each other. To get to a certain point in the “web”, a request from a computer needs to go through a lot of nodes:

  1. The chain starts at the PC itself. It is necessary that all protocols work correctly, and the DNS server is up-to-date and in good working order.
  2. The request arrives at the router. The device itself and the cable leading to it must be undamaged.
  3. The request is sent to the provider. To further advance to the "web":
    • You need timely payment for Internet services;
    • there should be no breakdowns or technical work on the main lines;
    • The provider's servers must be supplied with stable electricity, etc.
  4. The request, through connecting nodes and hubs, reaches the server of the Internet resource, after which the server gives a return response, which moves back in the same direction.

Only when no hiccups occur at any stage of the request’s movement from the PC to the requested information will the connection work stably.

But if a problem occurs at least somewhere, the browser or any other Internet client will report an error.

Unfortunately, the user can only influence the computer and partially the network equipment.

Troubleshooting a broken network

If the network is not working normally, all sites are not responding to requests, and the network indicator shows an additional icon in the form of a red cross or yellow triangle, then you have problems with the Internet.

  • Before correcting the situation, you must:
  • restart the computer to restart all services and components;
  • inspect the network cable plug. There should be no significant kinks or damage to the insulation. You also need to check how securely the plug is secured in the sockets;

inspect the router. All indicators, except power, should be on and blinking. This means that traffic enters the device and is transmitted further.

Problems from the Internet Service Provider

If the TP specialist claims that there are currently no problems on the part of the provider, we move on to diagnosing the network equipment.

Failure or breakdown of network equipment

The next link in the connection chain is network equipment: a router and a cord if a wired connection is used.

To find out if the connection error is appearing on one or all devices, you can use another computer or smartphone. If the second device works stably, then the problem lies in the first one and you need to move on to software actions on it. And if there is no response from the Internet on another PC or smartphone, you need to perform two simple operations with the router:


After resetting the settings, you need to reconnect to the router’s network and check your Internet access. If the problem persists, use the help of a service center or store: most likely, there is a failure in the router chips. Correction of such complexity should only be done by professionals.

Computer software problem

When everything is in order with the provider and network equipment, the cause of the problem lies in the computer. In the operating system settings there are many settings that are responsible for the operation of the Internet connection. It is also necessary to monitor the hardware: network device drivers guarantee the ability to “communicate” between Windows and network adapters. Software products can be damaged by viruses or system errors, and in these cases the Internet may also disappear.

To correct the situation, you need to install the device drivers again:

  1. Through system search or the executing program (Win + R) we launch the devmgmt.msc process.

    Use the special command devmgmt.msc to open the “Device Manager”

  2. Open the “Network Adapters” tab. Right-click on the line that does not contain Bluetooth or WAN Miniport in its name and select the “Update Driver” menu item.

    Right-click on the device and select “Update Driver”

  3. Depending on the location of the drivers (Microsoft server or an already downloaded program on your computer), select “Automatic search” or “Search for drivers on this computer.”

    Depending on the location of the driver, select the update method

Possible viral activity

Immediately after installing the drivers, you need to scan your computer for virus threats. It is because of viruses that in most cases this or that equipment fails. For a high-quality scan, you will need not one antivirus, but three good programs. I recommend Comodo Internet Security, AVG AntiVirus Free, Bitdefender Antivirus Free Edition. These products are completely free, but still guarantee reliable protection. And the difference in manufacturers increases the chance that threats will be found and neutralized.

Scanning must be carried out one by one, because if you run all programs at the same time, they can block each other’s work or overload the computer’s processor.

Problems in the Internet Protocol Environment

In addition to hardware, some software protocols are responsible for connecting to the network. They specify the algorithm by which data transmission should be carried out. It is very important that these protocols are not changed, otherwise the order of operations will be disrupted.

The DNS service directs requests to the correct Internet addresses because it converts the name of the service into its IP address. A clogged cache can also cause communication problems.

Incorrect Internet protocol settings can be reset via the Command Line terminal:


IP Address Conflict

Just as every house has its own number, so every computer has its own IP address. If two houses are numbered the same, the postman may deliver mail to the wrong address. When IP addresses conflict, similar situations may arise. To fix them, you need to switch to automatic address selection and restart the computer:

  1. In the address bar of Explorer, paste “Control Panel\Network and Internet\Network Connections” and press Enter.

    Using the "Explorer" address bar, open the "Network Connections" environment.

    Calling connection properties

  2. Select the “IP version 4” component and click the “Properties” button. We set the automatic selection of the IP address and manually register the DNS server:
  3. We save all changes with the “OK” buttons and restart the computer.

Video: how to configure automatic acquisition of an IP address

If the problem with the Internet not working is in the Windows software, solving it is not difficult. You just need to carry out the steps shown above one by one. In other cases, you will have to consult with your provider or replace failed network equipment.

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.

There may also be no Internet 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 the problem.

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

Reboot 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 “Properties”. 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.

  1. First try the following:
  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 the 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, recreate 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 Center”, select “Create a new connection” 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 thing to do is 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.

If you're having trouble downloading large files, chatting on Skype, streaming video over the Internet, or playing an online game, there's most likely something wrong with your connection. Are these problems on your side or are they on the provider's side? To understand the reasons, you need to carry out a fairly simple diagnosis. Here is a short guide with 5 basic steps.

1. Your PC is actively downloading something in the background

The first thing to do when detecting problems is to make sure that background processes on your PC are not clogging the channel. It could be a torrent client, a Windows update download, or even a virus.

Open the task manager and check if the Internet connection is loading your computer. If it loads, then find out what kind of process it is and, if possible, disable it.

If this is some process unknown to you, then you can search for information about it on the Internet.

2. The Internet is actively used by other devices

If there are other Internet users on your network, check to see if they are currently downloading anything. This is especially important when using Wi-Fi. With it, even the slightest increased load on the channel from one of the devices inevitably entails a drop in bandwidth for other Wi-Fi users.

For example, if you want to talk to a distant relative via Skype with video, but the picture and voice constantly freeze (lag), then it may well be that your child is downloading a new game or your spouse is watching a movie online from another device. In this case, you should either wait or ask to temporarily free the channel if the call is urgent.

3. Reboot the equipment

Sometimes it happens that the router starts to malfunction and it is enough to simply reboot it to restore normal Internet operation. To do this, simply unplug it from the outlet for 10-15 seconds and then plug it back in. In some cases, this helps solve problems.

Again, if there are other Internet consumers (devices) on your network, then it is worth checking the Internet availability on them. If other devices are experiencing the same problems, then the problem is definitely not in your device and you should restart the router.

4. Check if someone else is connected to your home network

If you forgot to change the password for your home Wi-Fi network or use something very simple as a password (for example, 12345), then there is a high chance that someone outside has connected to your network and is downloading something without letting other members it is normal for your family to use the network.

To do this, you will need to go to the router settings (most often they are available at 192.168.0.1 or 192.168.1.1) and see if there are any unnecessary devices in the list of connected ones. To simplify the experiment, you can disconnect all your devices from the Internet except one (the one you are sitting at). So, only one device should be displayed in the list of active connections. If there are several of them, then either you forgot to turn off one of your devices, or you were “broken into.”

In this case, you should change the password to a more complex one. After this, you must forcibly disable all “illegal immigrants” who illegally and at your expense use the services of the provider for free.

I cannot describe in detail the steps on your router, since there are a huge number of them on the market and they are all different. Therefore, it is worth referring to the user manual for your router to do this.

5. Checking channel stability using Ping

If the first two points do not produce results, then it is worth checking whether the cause of the problem is located on the path from your home to the provider. To do this, you can use the ping command, which sends several requests to a given address and shows the response time. Based on the response time, you can determine the presence of delays or lost packets, which is a sign of an unstable connection.

To do this, launch the command line (to do this, press the key combination Win + R, in the window that appears, enter CMD and press Enter), in the window that appears, enter the command listed below, and then press Enter.

ping 8.8.8.8

The address 8.8.8.8 belongs to the Google DNS server. After pressing Enter, you will notice some lines appear. Each line is one sent data packet to the specified address.

If four packets are not enough to determine the stability of the network, then you can add the –t switch to the above command, which will give the ping program the command to continuously send packets until the user manually interrupts it with the Ctrl + C combination.

ping 8.8.8.8 —t

The "time" parameter means the response time in milliseconds. If they are all approximately the same and there are no lost packets between them, then everything is fine. If you see lost packets in the results, then you should contact your provider’s support service and report the existing problem with lost packets.

If you notice an error, select a piece of text and press Ctrl+Enter
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