Wi-Fi does not connect to laptop. Error: Windows could not connect to wifi

This article will talk about what to do if Window 7 does not connect to WiFi networks. The fact is that although this operating system is more stable than its predecessors, various errors may still occur that must be corrected manually.

Before moving on to connection problems and their solutions, you need to understand what WiFi is and how the technology works. This will allow you to fix some problems faster.

The fact is that to connect to such a network you need an access point. Its functions are usually performed by wireless router. And so first of all, if not available connections to a WiFi network in Windows 7, you should pay attention to the router.

As a rule, this is the reason. But of course, there are other problems. So, let's take it in order.

Checking the router

Everything is very simple here. If the laptop does not see available connections, then you should go to the settings menu WiFi router and check if the wireless network is turned on. To do this, you need to connect to the router using a regular Internet cable. After that, open a browser (any) and enter 192.168.0.1 in the address bar. Press "Enter". Next, a window will appear asking you to enter your password and login. As a rule, the default key and login are admin, admin, respectively.

How to easily find out the IP address of a WiFi router: Video

If you changed this data, then enter your values. Next we get to the settings menu. We are interested in NetworkWireless settings. In settings wireless network you need to check the box next to “Enable Wireless Router Radio”. That's it, setting up the router is complete. And if your laptop with Windows 7 still has problems with WiFi, then you should proceed to setup operating system.

Why doesn't my computer see available wireless networks?

There can be many reasons for this, as well as solutions. Fortunately, Windows 7 is user-friendly and has many options for diagnosing and fixing problems. But we will consider only the most common ones.

First of all, you should check the condition wireless connection WiFi. To do this, you need to open the Network Control Center. To do this, click on the network icon in the tray and select “Network and Sharing Center” in the window that appears. shared access».

A menu will open in which all network-related settings are made. Here we are interested in the “Change adapter settings” item. In the window that opens, you need to find a shortcut called “Wireless Network Connection”. If this connection is gray in color, this indicates that it is turned off. To enable it, you need to right-click on it and select “Enable”.

Windows 7 won't connect to Wi-Fi: Video

The wireless network icon does not appear in the tray

Users often ask what to do if the tray is not displayed WiFi icon in Windows 7? This can only mean one thing - the module wireless communication turned off or not working. occurs, as a rule, using the key combination Fn + adapter power button. On different laptops, this button may be located in different places.

For example, on Asus laptops– this is the combination Fn+F2, on Lenovo – Fn+F5. The WiFi power key itself is indicated by a corresponding image. In addition, on some models there is a separate button to activate the wireless connection module. In this case, just press it.

So, after turning on the wireless adapter, Windows 7 should automatically start searching for available networks. If this does not happen and the tray icon does not appear, then you should check that the drivers are working correctly.

What to do if a laptop with Windows 7 does not see Wi-Fi: Video

Checking drivers

You can check the software in Windows 7 in the task manager.

You can launch it by clicking on the “My Computer” shortcut, which can be found on the desktop, in the Start menu or in Windows Explorer, with the right mouse button. In the window that appears, click “Properties”. Next, a menu will open in which you need to open “Device Manager”.

In the window that appears, we are interested in network adapters. If you do not find this, then there are no drivers for the device and you need to install the driver for this module. If there is such an item, then open it. Typically, the wireless adapter is called Wireless Network Adapter. The device may also be indicated by an exclamation mark. This indicates that the driver is not working properly and needs to be updated or reinstalled.

It's very easy to do. As a rule, the laptop comes with a special disk that contains all the necessary programs and drivers. If there is no such disk, do not rush to get upset. The necessary software can always be downloaded from the Internet, since manufacturers have taken care of supporting their customers.

To do this, find the official website of your laptop manufacturer and write the exact name of the laptop (exact model) in the search. Next download necessary drivers and install them. It is worth noting that it is not recommended to install software downloaded from third-party sources, as such drivers may be unstable and sometimes even pose a threat to the integrity of the system.

How to reinstall the WiFi driver: Video

It is also important to know that sometimes, even with the driver installed, it is not possible to turn on the adapter, since this is done using additional functions keyboards. This means that together with the software for network adapter You should also download the driver for the keyboard, as well as the recommended utility for managing the wireless module.

If your desktop computer or the laptop is connected to the Internet, then an unpleasant moment may come when you lose access to the network, and the network connections icon in the notification area will be crossed out with a red cross. When you hover your cursor over it, a message will appear explaining everything. "No connections available". This happens especially often when using a Wi-Fi adapter. Let's find out how to solve a similar problem if you are using a PC with Windows 7.

There are quite a few reasons that can cause the problem we are studying:

• Real lack of available networks;
• Damage to the Wi-Fi adapter, router or modem;
• PC hardware failure (for example, network card failure);
• Software glitch;
• Lack of current drivers;
• Damage to the operating system;
• Virus.

We will not talk in detail about such a banal reason as the real lack of accessible networks. This can only be “cured” by returning to the Internet accessibility zone or changing the connection method to one that is valid in the given area. There is also no point in talking too much about hardware faults. They can be eliminated either by a hardware repairman or by replacing a failed part or equipment (Wi-Fi adapter, network card, router, modem, etc.). But we’ll talk in detail about the other reasons and ways to eliminate them.

Method 1: Standard diagnostics

First of all, if you experience the error discussed in this article, follow these simple steps:

• Unplug the Wi-Fi adapter from the computer connector and then connect it again;
• Reboot the router (it is better to do this by completely disconnecting it from the power supply, that is, you need to remove the plug from the socket);
• Make sure you have your Wi-Fi hardware switch turned on if you are using a laptop. It turns on different models laptops different ways: either using a special switch on the case, or using a specific key combination (for example, Fn+F2).

If none of the above helped, then it makes sense to carry out a standard diagnostic procedure.

Unfortunately, this method helps in a fairly limited number of cases. Therefore, if you are unable to resolve the problem when using it, then proceed to the following methods, which are described below.

Method 2: Enable Network Connection

It is likely that the cause of the error may be a disconnected connection in the network connections section "Control Panels". Then you need to activate the corresponding object.

1. Click "Start" and open "Control Panel".



2. Go to section "Network and Internet".



3. Go to "Network Control Center...".



4. In the left part of the window that appears, click on the inscription "Change adapter settings".



5. The window that appears shows all configured for this computer network connections. Find an item that is relevant to you and look at its status. If set to "Disabled", then you need to activate the connection. Right-click on the object ( RMB) and select "Turn on".



6. After activating the connection, the problem described in this article will most likely be resolved.

Method 3: Removing the adapter from Device Manager

If you connect to the Internet via a Wi-Fi adapter, then one of the ways to solve the problem is to disable it in "Device Manager", and then reactivation.

1. Go to "Control Panel" by the method that was considered in the description Method 2, and then open the section "System and safety".



2. Click on the one posted in the group "System" element "Device Manager".



3. Will start "Device Manager". In the list of equipment types that opens, click on "Network adapters".



4. In the drop-down list, find the name of the equipment that you use to connect to the Internet. Click on it RMB. Carefully examine the context menu that appears. If it contains a clause "Engage", click on it. This will be enough and you will not need to perform all further actions described in this method. The device was simply turned off, and now you have turned it on.

   

   If the specified item is not present, then this means that the device is likely to malfunction. Therefore, it needs to be temporarily deactivated and then turned on. Click in the context menu "Delete".



5. A dialog box will open warning you that the device will now be removed from the system. Confirm your actions by clicking "OK".



6. The procedure for deleting the selected device will be performed.



7. After that in horizontal menu click "Action", and then from the list that opens, click "Update configuration...".



8. A search will be made for devices connected using the technology "Plug and Play". The network adapter will be reconnected, and its drivers will be reinstalled.



9. Next, restart your PC. Perhaps after this the connection availability error will disappear.

Method 4: Reinstalling drivers

One of the reasons for the error we are studying is that incorrect or outdated network adapter drivers are installed in the system. Most often it occurs when connecting the device for the first time or after reinstalling the OS. Then the drivers should be replaced with a current analogue. It is advisable to use exactly those copies that were supplied on a CD or other media along with the device itself. If you do not have such media, you can download the required object from the official website of the adapter manufacturer. Using similar software from other sources does not guarantee a solution to the problem.

1. Go to "Device Manager", using the same algorithm of actions as in the previous method. Open the section again "Network adapters" and click RMB by name desired device. In the list that appears, select "Update drivers...".



2. Next, the shell for selecting the update method is activated. Select an option “Search for drivers...”.



3. In the window that opens, you must specify the media and directory where the drivers will be installed. To do this, click "Review…".



4. The shell opens "Browse folders". Here you need to indicate the folder or media (for example, CD/DVD) where the drivers supplied with the device or pre-downloaded from the official website are located. After selecting a directory, click "OK".



5. After the directory address is displayed in the driver search window, you can proceed to install them by clicking the button "Further", but before doing this, make sure that opposite the parameter "Including subfolders" the checkbox has been checked.



6. The necessary drivers will be installed, and the problem with the lack of Internet connection will probably disappear.

But what to do if for some reason you do not have the driver media that came with the device, and the company’s official website does not work? In this case there is additional features install the necessary drivers, although they are recommended to be used only in the most extreme cases, since they do not 100% guarantee interconnection between the OS and the adapter. You can use the following options:

If your Internet does not start at all, then you will have to search and download from another device.

Method 5: Enable the service

If you use Wi-Fi to connect to the Internet, the problem we are investigating may occur due to a service outage "WLAN Auto Configuration". Then it needs to be activated.

1. Go to the section "Control Panels" entitled "System and safety". This is discussed in the description Method 3. Click on the title "Administration".



2. In the list of system tools that opens, select "Services".

   

   "Service Manager" can be activated in another way. To do this, dial Win+R and enter in the displayed area:

   Then apply button click "OK".



3. "Service Manager" will be open. To quickly find an element "WLAN AutoConfig Service", arrange all services in alphabetical order by clicking on the column title "Name".



4. Find the name of the desired service. If the status is not set opposite its name "Works", then in this case it is necessary to activate. Double-click on her name with the left mouse button.



5. The service properties window opens. If in the field "Startup type" set value "Disabled", then in this case click on it.



6. A drop-down list will open where you need to select "Automatically". Then click "Apply" And "OK".



7. After returning to the main interface "Service Manager" select the name "WLAN AutoConfig Service", and on the left side of the shell click "Run".



8. The service will be activated.



9. After this, the status will be displayed opposite its name "Works" and the problem with lack of connections will be solved.

Method 6: Checking system files

If none of the above methods help, then there is a possibility that the integrity of the system files has been compromised. In this case, it is necessary to perform an appropriate check and then restore if problems are found.

1. Click "Start" and select "All programs".



2. Open the folder "Standard".



3. Find the element with the name "Command line". Click on it RMB. From the list of action options that appears, choose to run as administrator.



4. Opens "Command line". Type into its interface:

   Then click Enter.



5. The procedure for scanning the integrity of system elements will be launched. Information about the dynamics of its passage will be displayed right there in the window. « Command line» in percentage terms. While this process is running, you should not close the current window, but you can minimize it. If violations in the structure are detected, a procedure for restoring missing or damaged files will be automatically performed.



6. If, after completing the scanning procedure, a message appears informing you that recovery is impossible, repeat the entire process again, but this time you will need to.

Method 7: Eliminate viruses

The cause of the problem of lack of available networks may be a virus infection of the computer. Some malicious programs specifically disable access to the Internet so that the user cannot use external help to remove them, while others simply arbitrarily “kill” or modify system files, which ultimately leads to the same result.

To remove malicious code, there is no point in using a standard antivirus, since it has already missed the threat, which means it will not react to the virus, and may also be infected by this time. Therefore, we recommend using specialized anti-virus utilities that do not require installation. One of best programs of this class is . It is best to check from another device or when starting from LiveCD/USB. This is the only way to ensure the maximum likelihood of detecting a threat.

If the antivirus utility detects malicious code, then follow the advice that will be displayed in its interface. There is a possibility that the virus has already damaged system files. Then, after eliminating it, it is necessary to carry out the appropriate check discussed in the description Method 6.

As you can see, the source of the problem with the availability of connections, and therefore with the performance of the Internet, can be a lot of different factors. They can be both external (real lack of network) and internal (various failures), caused by both the software and hardware components of the system. Of course, before fixing a problem, it is recommended to establish its exact root cause, but, unfortunately, this is not always possible. In this case, simply use the methods described in this article, checking each time whether the malfunction is eliminated or not.

Today the Internet has become an integral part for us. Everyday life. Having constant access to the global network is a necessary condition for comfortable work, communication, and entertainment. Over time, for greater user convenience, wi-fi routers and wireless adapters replaced the wired network. However, sometimes, instead of the declared convenience, one trouble may await you - an error like: “The Windows system is unable to connect to the Internet via a wi-fi connection.”

Causes of the error “Windows cannot connect to the Wi-Fi network”

This error appears on the monitor screen immediately after an attempt to automatically (or manually) connect to the Internet, which is a notification window about connection failure.

There are several reasons for this error, the most common of which are:

• freezing of Windows OS or router service commands;
• incorrect entry of the “network key” (password) when connecting;
• faulty wireless drivers wi-fi adapter;
• Internet connection settings failure in Windows.

Solving the problem: first steps

No matter how trivial it may sound, the first thing you should do is check the serviceability of the network connection of the router (router), as well as the Wi-Fi adapter to your PC (laptop). If all indicators are lit with a stable green light (power, Internet signal status), then try rebooting the router and then the computer. If the problem is not resolved, proceed to the next steps.

Checking the “network security key”

The next, relatively simple solution is to check that the “network security key” (password) is entered correctly when trying to connect a wireless connection. Even if you are sure that the password was entered correctly, it is still worth checking it in the router settings. To do this you will need to follow a number of steps:

The following instructions will be shown using the example of a SAGEMCOM brand router, however, the settings in each router are the same, they may only differ appearance settings windows, subcategories and names of individual items.

1. Open any Internet browser and enter the IP address of your router into the line (the factory sticker with information is usually located on the back of the router). Typically this address comes in two types: 192.168.0.1 or 192.168.1.1. In the authorization window that appears, enter your login and password (by default, you must enter the word “admin” in both lines).

   If you enter the wrong username/password, a page with the error “401 Unauthorized” will appear.

2. Go to the “Security” settings item (it is always located in the category called “Wireless Network Settings” or “WLAN Settings”).
3. Find the line with the words “WPA/WAPI/PSK Password” and look (check) the “network security key” written there. If the key is the same as the password you entered, then move on to the next solution to the problem.

   In the “SSID” settings field, you can also select the required connection from all existing ones on your PC

Video: setting up a “network security key” through the router parameters (using the example of “D-Link”)

Sometimes a technical failure of the router may occur, which leads to incorrect saving of the “network security key” settings, so the author of this article advises re-entering the “WPA/WAPI/PSK password”, applying/saving it and then rebooting the router/computer.

Installing (updating) the wireless wi-fi adapter driver

Like any electronic device, a wireless wi-fi adapter needs to constantly update its driver. An outdated version or its complete absence may lead to problems connecting to the Internet. Therefore, to solve it you need to do the following:

1. From the Start menu, open the Control Panel setting.

   "Control Panel" on Windows 10 can be found under the path "Start" / "All applications" / "System"

2. In the window that appears, select “Device Manager”.

   "Device Manager" can also be launched using the Windows search bar

3. Find the “Network adapters” category, select the model of your wireless wi-fi adapter by right-clicking and click on the “Update drivers” line.

   Update drivers by selecting the appropriate function in the context menu

4. After this, automatic driver updates will begin. When finished, restart your computer.

Video: methods for updating and installing drivers for network equipment

For optimal performance Windows systems It is necessary to regularly update drivers, not only for the wireless wi-fi adapter, but also for other devices. Therefore, the author of this article recommends using special utilities(for example: “Driver Reviver”, “DreverPack”, “Driver Booster” and others) to scan the OS for outdated drivers, and then automatic update. Thanks to such utilities you will save your time.

Setting up a wireless connection

It happens that the cause is a failure in the wireless connection settings. To restore settings you need to:

1. Open “Control Panel”, go to the “Network and Sharing Center” settings item.

   You can also open the Network and Sharing Center settings window using the Windows search bar

2. Select "Change adapter settings".

   By clicking on the “Network” icon you can get detailed information about Internet devices connected to your computer

3. Next, right-click on the “Wireless Network Connection” icon and click on the “Properties” menu.

   If there is a red cross next to the wireless connection, then there is a problem with its settings

4. From all components, select the line “Internet Protocol version 4 (TCP/IPv4), go to “Properties”.

   A network with Internet Protocol version 6 is more modern, but in Russia all well-known providers use protocol version 4

5. In the protocol properties, place markers next to two parameters: “Obtain an IP address automatically” and “Obtain a DNS server address automatically.”

   Even if both markers are in the right places, still reconfigure and resave the parameters again

6. Close the Network and Sharing Center settings and connect to the Wi-Fi network.

Diagnose and resolve network problems

If there is a problem with wi-fi connection and remains relevant, it is worthwhile to automatically diagnose network problems using the appropriate Windows tool.

1. You must again go to the Network and Sharing Center settings panel (via the Windows Control Panel), and select the “Troubleshoot” item.

   The Troubleshooter tool can also be launched by right-clicking the Network icon (on the bottom taskbar of your desktop)

2. In the menu that appears, select the line “Internet Connections”.

   Additionally, you can diagnose the “Network adapter” category

3. Then follow the prompts and wait until the diagnostics are completed, followed by eliminating the errors found.

   By clicking on the “Advanced” menu, you can configure automatic/manual elimination of detected errors

4. After the procedure, restart your computer and try connecting to the wireless wi-fi networks.

Finding a solution by viewing the Windows event log

If not a single method of solving the problem could help, then you have a “special case”. To identify the cause of the problem, you should use the Windows event log. This will help you find out the code of the system error that has occurred for further steps to eliminate it. For this:

The “Event log” can also be found through the Windows “Control Panel” in the “Administration” tab

In the window that opens, in the left column, go to the following path: “Utilities” / “Event Viewer” / “Windows Logs” / “System”.

By selecting the entire “Windows Logs” folder, you can find out the general statistics of the number of events

Then, select the “log filter” tool located on the right side of the window. In the filtering settings window, you must mark all sources associated with the Internet connection, such as:

In the filtered list of events, find those that conflict with the system (marked with a red icon with an exclamation mark). Click on the error and find the line “event code” in the description.

It is necessary to find all errors (the event codes of some of them may be repeated)

Thanks to this code, you can find out the causes of a system malfunction on the Internet for further solutions.

To search for solutions to “special cases” using “event codes,” the author of this article recommends using the official Microsoft support website (https://support.microsoft.com/ru-ru). Since it has an extensive database of existing “Windows error codes” (in particular related to network connections). You just need to use the website search engine by entering the “event code” of interest.

To search for a solution to a problem using the “event code”, you can use the site’s search engine

Most errors associated with connecting to a wireless wi-fi network are either the lack of installed drivers for a wi-fi adapter, or due to a failure in the settings of the Internet connection itself on the PC. In addition to “manually solving” these problems, you can also use the built-in Windows tool - “System Diagnostics”, to automatic search and troubleshooting problems that arise. To solve “special cases”, an “event log” is provided, thanks to which you can obtain additional information on all faults for their further solution.

On the computer, after each reinstallation of OS Windows 7, you have to reinstall all programs, drivers and connect peripherals. But in the age unlimited internet, a person cannot imagine his existence without it. Therefore, the problem of connecting to the global network after reinstalling the operating system always remains relevant.

Connecting to the Internet via routers

Owners of routers (routers) are luckier, since all settings are stored directly on separate device, so reinstallation is not scary, and you just need to make sure that the network between the PC and the router is correctly configured. On Windows 7, you can check this in the Network and Sharing Center ( Start - Control Panel - Network and Internet - Network and Sharing Center). Next, in the left menu, follow the link “Change adapter settings”

and check that the “connection via local network", for the main network adapter:

You can check the name of the main network card in Device Manager. The easiest way to find it is to hold down the WIN+Pause key combination (the combination is supported in all versions of the OS, including Windows 7, Windows 8 and Windows 8.1).

and in the device tree you need to find the “Network adapters” sub-item. Here a list of all network cards (including virtual ones) installed in the computer will appear.

Another question is when there is not a single network card here, but there is unknown devices— install drivers for your network equipment.

If this does not help, check that you are installing the appropriate software. In the worst case, the network card does not work and needs to be replaced.

When the network connection to the router is established, the Internet connection is activated automatically.

Direct Internet connection using Windows 7 as an example

If you do not look at the fact that now most providers provide Internet services without using a login and password (binding by MAC address and you just need to insert the cable into the PC), let's take a closer look at how to set up and connect your computer to the Internet using a login and password (PPPoE protocol).

First you need to check how the network card works (checking the network connection). Next, go to: “Start - Control Panel - Network and Sharing Center.”

Here we select the item according to the picture:

In the next step, select “High-speed (with PPPoE)”:

After selecting the connection type, a window will appear with fields that need to be filled in accordingly and click the “Connect” button:

After filling in all the fields, the computer will attempt to connect using the previously entered data:

If no mistakes were made at the setup stage, you will be able to connect your Windows 7 computer to the global network right away. If, after all the steps, the Internet does not work, you need to delete the created connection and repeat the process again.

Another way to set up a direct connection on Windows 7

Some providers work using another parameter called “Service Name” to distribute the load between servers. It improves connection stability, but adds hassle to ordinary users.

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 lack of correct settings networks.

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 viral software.

The Internet may also be unavailable due to a debt on a personal account or due to a line failure. Before you try 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 state will be called as follows: “ 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 required section, you should select the “Category” view 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" 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 next to the driver icon there is Exclamation point, 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" via 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 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 technical support antivirus software.

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 Ethernet network, which works on a point-to-point basis and gives the user 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 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 reconnecting the router to a different 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 from the site Windows file operating system onto a disk (or purchase a disk in a store) and run it on the 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 " Insecure 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.