Today I will look at a situation that users of operating systems often encounter Windows 7 And Windows 8. The essence of the problem is this: there is a connection to the network, but Network and Sharing Center writes that the Network without access to the Internet, there is about a clock next to the network icon in the tray Exclamation point. In fact, the Internet may even be accessible. There may be several reasons with different scenarios. Let's take a closer look at each of them.

But first things first, if you are connected via a modem, router or optical ONT terminal- I would advise reboot it. If, after rebooting the device, Internet access resumes, the problem is clearly in the router itself, its settings, or the provider’s network (this also happens). In this case, we reset the router with the reset button, configure it again and check. If still after some time a message appears that Network without Internet access- try another router to check.

1. WiFi network without Internet access

This is the most common situation. The reason for this problem is most often the following. The vast majority of users are not aware at all what is an IP address and believes that for Wi-Fi connection You just need to enter the network security key. In most cases, this may indeed be enough, but not always. If on WiFi router protocol disabled DHCP, then you can easily connect to the network, but here IP address your wireless adapter on your laptop, tablet or smartphone will not receive it. Accordingly, you will not have access to the Internet, although the network is actually connected, but only partially.
By the way, this is also possible with a wired connection - the cable was plugged in, but the address was not received.
What to do? Register the IP address manually. To register IP in Windows 7 or Windows 8 you need to do the following:
Let's go to Control Panel and click on the icon Network and Sharing Center:

In the window that opens, click on the link Change adapter settings. A list of network adapters will open. Right-click on the network adapter through which we connect to the router and select the menu item Properties:

The network card properties window will open. Select an item Internet Protocol Version 4 (TCP/IPv4) and double-click on it with the left mouse button. This is where you need it register IP address, netmask, gateway and DNS address:

For most routers (except D-Link) the following should be suitable:
IP address — 192.168.1.2
mask — 255.255.255.0
Gateway — 192.168.1.1
primary DNS — 192.168.1.1
secondary DNS — 8.8.8.8
For D-Link routers:
IP address — 192.168.0.2
mask — 255.255.255.0
Gateway — 192.168.0.1
primary DNS — 192.168.0.1
secondary DNS — 8.8.8.8

2. There is Internet access, but it still says Network without Internet access

This problem is most often occurs when a computer connects to the Internet via a proxy server . That is, there is access to the Internet, but it is not direct, but through a server.
In this case, you can do the following:
Press the button Start select an item Execute(or press the key combination Win+R ) and in the window that opens we write:
gpedit.msc
it will be revealed to you Local Group Policy Editor.
Local Computer Policy → Computer configuration → Administrative Templates → System → Internet Communication Management → Internet communication settings and enable the parameter:
« Disable active probing for the network connection status indicator «

When the Internet suddenly turns off, we, as a rule, begin to climb through the jungle of settings of the Windows operating system in order to somehow try to regain access to the precious information flow. Ultimately, we get into the settings of our Internet connection and see the message “IPv4 without access to the Internet or network.”

Obviously, this information has something to do with the loss of the Internet, right? That’s right, and in this article we will tell you how to fix the “IPv4 without Internet access” problem. It can be solved in a huge number of different ways and we will consider them all.

However, first we need to indicate the possible reasons for the loss of the Internet and the appearance of this alarming message.

  • Incorrect Internet connection settings, which could be set by the user himself or due to some changes in the system.
  • Problems encountered on the user's provider side.
  • Various errors and failures in the Windows operating system, due to which access to the network may be blocked or connection settings may be reset.
  • Malfunctions of the router(router).
  • Exposure to some viruses or malware (very rare cases).

Before we move on to consider the methods that can be used in this situation, there is one more thing to point out. Next to the message “IPv4 without network access” you can see a line that will tell you that IPv6 is also without Internet access.

Let's return to the problem with "IPv4 without network access" and the lack of Internet on your computer. Let's look at what you can try to do in this situation.

Errors and glitches in Windows are far from new to all users of this controversial operating system. It is possible that just one of these errors in some strange way was able to block your access to the Internet. To check this probability, simply reboot your system.

If, after rebooting the system, you have access to the Internet, and the line “IPv4 without network access” has changed, then this was just a one-time failure in the system. If the situation has not changed, then let's move on.

Method No. 2 Restart the router

A router is not the most reliable network equipment and sometimes it can easily start to malfunction, block access to the Internet, reduce the speed of the network connection and create other problems. If you suddenly lost internet and found “IPv4 without internet access”, then try resetting your router.

Resetting your router is quite simple: unplug the power from it, wait about thirty seconds, and then plug it back into power. Wait until your system detects the network connection and then check for the problem.

Method #3 Checking connection settings

If you recently changed something in the settings of your Internet connection, then this could be the reason for its disconnection and the “IPv4 without Internet access” state. The problem could have arisen due to some changes in the settings. For example, did you try to set some static addresses for IP or DNS?

Go to your connection settings and set everything to the same values ​​if they were previously changed. If you haven’t changed anything, then still go to the network connection settings( Win+R→ncpa.cpl→Properties→Information) and make sure everything is set correctly.

Method No. 4 Disabling the router

If resetting your router did not fix the "IPv4 without internet access" status and your connection settings are fine, then the problem may be with your router. Try connecting your computer to the network via a wired connection, i.e. without the presence of a router in combination.

So, if you connected a cable from the Internet to your computer and gained access to it, then the situation arose definitely because of the router, in which either the settings changed, which led to the “IPv4 without Internet access” state, or something happened to the router itself. device.

You can try restoring the router to factory settings in its parameters, which are available in most cases at 192.168.1.1 (the address for setting is indicated on the device box or on its body). If you have configured the router yourself, then you understand perfectly well what values ​​should be set there.

Method No. 5 Disabling/removing antivirus

Antivirus software is responsible for protecting your system from various malicious elements that are constantly trying to enter and harm it. Some antiviruses do their job well, but others, so to speak, go too far.

If you have a third-party antivirus installed on your system, try disabling it or even uninstalling it, as it could easily block your network connection. This happens rarely (mostly antiviruses block some files, even system ones, but not the connection), but it still happens.

If disabling/uninstalling the antivirus did not help return the Internet and “IPv4 without Internet access” still remains in place, then you can also try disabling Windows Defender (irrelevant for Windows 7 users), the system antivirus that should have been activated after removing the third-party antivirus BY.

Method #6 Disabling Windows Firewall

Another reason that could be behind “IPv4 without internet access” is Windows Firewall. This firewall may be blocking your network connection. Now we will try to disable your Firewall for a while and see what happens:

  • Right-click on Start.
  • Select "Control Panel".
  • Select Windows Firewall.
  • Click on "Turn Windows Firewall on or off" on the left side of the window.
  • Check the boxes that will disable the firewall for private and public networks.
  • Confirm the changes.

Go to the Details window of your network connection, which can be found in the Network and Sharing Center, and see if Protocol Version 4 has Internet access. If not, then let's move on.

Method No. 7 Setting the DNS server address from Google

If you suddenly lost access to the Internet, then you can try to perform one specific, so to speak, trick, which sometimes helps to return your computer to the network. So, it consists in setting static addresses for the DNS server.

To do this, do the following:

  • Press the key combination Windows+R.
  • Write in the blank line ncpa.cpl and press Enter to open the Network Connections window.
  • Find your network connection and double-click on it with the left mouse button.
  • In the “Status” window, click on the “Properties” button.
  • Select the Internet Protocol Version 4 (TCP/IPv4) component, and then click the Properties button.
  • Set the following addresses for the DNS server:
    • Preferred DNS Server: 8.8.8.8.
    • Alternative DNS server: 8.8.4.4.
  • Confirm the changes and close the window.

Having set static addresses for the DNS server instead of automatic ones, try looking at your Internet connection information again. Well, “IPv4 without network access” is still present. If yes, then we will now try to do something else that may help you regain access to the Internet.

Method No. 8 Setting a static IP address

The last point in our article will be advice on setting a static IP address for your connection, which, undoubtedly, also sometimes allows you to resolve the situation with the missing Internet and the problem in the form of “IPv4 without access to the network or the Internet.”

Here's what you need to do to set a static IP for your connection:

  • Press the keys Windows+R.
  • Write in line ncpa.cpl and press Enter.
  • Double click on your Internet connection.
  • Select your connection properties.
  • Select Internet Protocol Version 4 (TCP/IPv4).

Here you will have to set certain values. First, you need to find out the address of your router (since this step applies to owners of a wireless connection). For example, the most common address is 192.168.1.1., but it can be different. As mentioned above, it should be written on the router box or on its case. Once you know the address you need, follow these steps:

  • In the IP address line you need to enter the router address, but only slightly modified. 192.168.1.1. →192.168.1.10. Add a zero to the end of the address.
  • We do not enter anything into the mask line, because it will be set automatically.
  • In the default gateway line we enter the already familiar address of your router, for example 192.168.1.1.

Save your Internet connection changes and then check for Internet connectivity and "IPv4 without network access" issues. How's it going? Still nothing. Well, in this case, you can point out a couple more not methods, but tips for this situation:

  • It is possible that a virus has entered your system and has somehow managed to block your network connection. Check your system with an antivirus scanner.
  • The problem with the lack of Internet and “IPv4 without Internet access” may lie on the side of your provider. Contact your providers and find out if there are any problems on their side.

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

When, during the next attempt to connect to the Internet, the computer writes “unidentified network” and refuses to let the user into the vastness of the virtual world, many “users” experience a “creative crisis”. Naturally, many “thorny” questions immediately arise: what kind of unidentified network is this, why the ethernet connection is limited and what, exactly, to do in such a situation - which we will try to answer in this article.

So, why does the “unidentified network without internet access” error occur?

Unidentified network windows 7: causes of the problem

It should be noted right away that an unidentified Windows network can arise either as a result of incorrect router settings or an “internal” failure of the operating system.

So, among the most “popular” causes of the problem, highlight:

  • - Settings failure on network equipment.
  • - Damage to the network cable.

Of course, if the signal from the router does not reach the computer, then the latter will be without access to the Internet. Carefully check the integrity of the cable along the entire “path” of the signal: perhaps the twisted pair was accidentally “broken” by an interior door or crushed under a sofa.

  • - Problems on the part of the provider.

However, before calling technical support, it is worth eliminating all “internal” causes of the problem.

Separately, it is worth mentioning the “unidentified network” message from the Rostelecom operator. So, with a direct connection to the Internet (when the cable provided by the provider is connected directly to the computer’s network card) - this is the norm. At the same time, the subscriber does not have any restrictions on access to the Internet, and he receives in full his megabits paid according to the tariff plan.

  • - Incorrect network adapter settings.

We talked about network card settings in detail in articles and.

Here we note only one important nuance: check that automatic data reception is set in the properties of the network adapter.

  • - Internal protocol errors.

You can assume such a reason when, after a restart, the computer displays an unidentified network.

To “defeat” this problem, you need to go to the command line (start - all programs - standard - command line) and write netsh int ip reset resetlog.txt there.

After entering the “magic” combination, press the “Enter” key and patiently wait until the computer restarts.

  • - Network card malfunction.

If an unidentified Windows 10 (7 or XP) network appears after reinstalling the system, it is likely that the cause of the problem is a “crookedly” installed network driver. Uninstall the program through the “Control Panel” and install the “fresh” version of the software from the official website of the network card developer.

How to remove an unidentified network in Windows XP?

In general, the procedure for “deleting” an unknown network here is similar to Windows 7, 8 and Windows 10.

However, here special attention should be paid to setting up Realtack Controllera (you can go to this section through the menu - control panel - network connections).

It is important to set the network address property correctly here.

If none of the listed options solved the “unknown network” problem, you should still call the provider’s technical support: there may be problems “on the line” or this service is blocked for you.

Users of computers and laptops running OS MS Windows 7 often encounter problems connecting to the Internet wirelessly. One of them is “Without Internet access” (connection is limited) via Wi-Fi technology. Everything seems to be configured and connected correctly, but you cannot access the network. On the connection icon located in the notification area, you see a yellow triangle with an exclamation mark.

This means that the network is active, but there is no Internet. Hover your cursor and you will see this message: “No Internet access.” “In other versions of the Windows operating system, the text will be slightly different: “Connection is restricted.” But changing the words does not change the meaning of this problem - there is no access to the network on your device.

And if you open the Network Sharing Center, you will most likely see the message “Unidentified network”. Many users face this problem and the solutions vary. If you have such an error on Windows 10 or 8, look for ways to resolve it in our separate article. And here we will show how to solve the problem “without access to the Internet” specifically for Windows version seven.

This error appears regardless of how the computer is connected to the Internet - via an Ethernet cable (directly or through a router) or using wireless access. But again, we have a separate article on Ethernet connections. And here we will consider only a wireless connection via a Wi-Fi network. Separate instructions for each connection are more convenient and understandable.

So, you have connected the Internet on your personal computer, desktop or laptop, via a wireless router. There is a connection, but the Internet itself is missing. Now we will try to fix the connection error by first finding the cause.

“No Internet access” over a wireless network in Windows 7: possible solutions

There are many solutions offered by both ordinary users and specialists. We have repeatedly encountered the problem of limited connection (no access to the network), and we can safely say that there are only three reasons: incorrectly configured router parameters or its malfunction, a failure on the side of the Internet provider and problems with the computer itself.

And if we find one of these three reasons, consider that the solution has been found.

So what you should do first thing:

  1. You connect to the Internet by first setting up your router. And if, after connecting the device to the computer, you see the “not available” status and an exclamation mark on the antenna icon, then it’s all about incorrect router settings. The connection status indicates that the Internet is not available on this device. And we just found out the reason - the router is to blame. But what? First, you may have forgotten to configure your router to work with your service provider, or you may have set the wrong settings. Secondly, the router itself may not be configured correctly. Don't forget that each model has its own setup instructions. Thirdly, the router may simply be faulty. And to determine this, connect from a smartphone, for example. If the Internet does not work, the router is to blame.
  2. Everything was fine with access to the Wi-Fi network, but after turning it on, restarting the computer, or while surfing, the connection disappeared. The very first thing to do is reboot both the router and computer. After reboot, connect wireless Internet. In most cases, the problem of unexpected connection loss is resolved.
  3. A common reason for lack of access to the Internet after connecting a computer to a wireless Wi-Fi network is the banal cable. Yes, the one that goes from your network provider to your router. For example, there are cases when users do not fully connect it to the WAN connector or even confuse the connectors. And this happens when, instead of the WAN, due to an accidental error or ignorance, the cable is connected to the LAN connectors.
  4. And it also happens that the reason for limited access to the network is even more trivial than in the case of connectors. You can spend several hours setting up your router, changing DNS addresses and puzzling over other reasons, and then remember that the personal account has run out of funds. Check your balance!
  5. To effectively solve a problem, you need to determine the cause. As we wrote above, this could be a service provider (provider), the computer itself or the router (technical malfunction or incorrect settings when connecting). Finding the reason won't be difficult. First thing connect from another device(smartphone, tablet, ultrabook, PC) to this router. If the Internet works fine, look for the problem in the first device - a laptop or computer. But if not, we choose one of two options - the problem is with the provider (incorrectly configured, no connection) or with the router (technically faulty or parameters set incorrectly). To determine who exactly is at fault, connect the cable directly to the laptop, without a router. Well, here everything is simple: the Internet appeared - the router is to blame, it still doesn’t work - the problem is with the provider or, again, with the PC. To begin with, eliminate technical work on the provider’s side by calling the support service. Perhaps they are just carrying out preventive work. Another way to determine the cause of a limited Internet connection is to connect the router not via wireless technology, but using an Ethernet network cable.

So, we found the reason, now we’ll tell you how to fix everything.

Error “No Internet access” problem in the computer (laptop)

If you connected the router to a smartphone or other laptop, and the Internet on this device started working, then it is your computer that is to blame for the lack of access to the network. What can be done in this case? If possible, connect to another Internet, not Wi-Fi, and check if there is access. If the Internet suddenly disappears, remember what you did before. Maybe they enabled or disabled some Windows service, installed a new application or antivirus software, changed network settings, programs, etc., etc. Remember.

If you don’t remember any “sins”, let’s try the most popular solution first - change the DNS and IP parameters. For example, if you received addresses automatically, let's set them manually. And vice versa: if you registered them manually, we will change the option to receive them automatically. So, let's do the following.

  • Click on the antenna icon with a yellow sign to enter the “Network Management Center”.

  • There on the left there is an option for “Change adapter settings”. Click on it.

  • Find your wireless adapter and look at its “Properties”. Specifically, we need the “Internet Protocol Version 4 (TCP/IPv4)” parameters. See which items are ticked. If you get DNS and IP automatically, uncheck the box and specify static addresses. How to do this is shown in the picture below. But before you enter these parameters, make sure that the router’s IP matches (look at the address indicated on the router sticker). And specify the DNS addresses as follows: 8.8.4.4 , 8.8.8.8 .

  • If you opened the properties of “Internet Protocol Version 4 (TCP/IPv4)” and saw the specified parameters there, uncheck the static settings and set the address to be obtained automatically. That is, we try everything in reverse, or both in turn.

Enabling Federal Compliance Mode (FIPS)) - as a possible solution

Let's try to use the FIPS mode, and maybe it will help. Click on the antenna icon in the notification area, where the yellow triangle with an exclamation mark still pleases the eye.

To do this, go to the “Changing adapter settings” section (discussed above), there find your “problematic” “Wireless network” and open its “Properties”. A new window with tabs will open. Select Security and click on the button with Advanced settings. This is where the compatibility mode with FIPS, the American information processing standard, is turned on.

Check the box, click OK and reboot to activate the new settings.

  • What else can you come up with if none of the above, alas, works? Try to temporarily stop everything that interferes with the normal operation of the network or completely blocks it. It could be antivirus program, which first appeared on your computer, browser extensions installed after its installation, a firewall, etc.
  • You can also download and install a new driver for the adapter (downloaded from the official website of the manufacturer of your laptop or PC) or replace it with another one available in the system. Read about this in the article (it describes Windows 10, everything is the same on Windows 7).

Is the problem with the router or the Internet provider? How to fix this problem

Checking your provider is very simple - by connecting directly without a router (to a network cable). If you have Internet, call technical support. support. This could be anything - from equipment breakdown and preventative maintenance to simple non-payment of services. Therefore, before setting up a router, connecting a cable, etc., call your provider or go to their website.

If the router does not work on other devices either, check the correct cable connection and the settings themselves. See the picture and correct if yours is different:

If the cable was connected incorrectly, correct it and be sure to reboot the router.

If the internet still doesn't work, check if it's configured correctly. Your device may not be able to communicate with your service provider because you have configured the wrong parameters to connect to it. Open the router settings (this is the Internet or WAN tab, depending on the model) and set the correct connection used by the network service provider, as well as other settings. Each router model is configured differently. Look for the instructions for your device and configure it as needed. There is nothing complicated in the router settings even for an untrained user, if you follow the recommendations exactly.

These are the solutions to this common error in Windows 7. And if you correctly determine the cause of the problem (equipment failure, maintenance work at the provider, forgot to pay for services, or incorrect router settings, or computer malfunction), your wireless Internet will work.

If you have any other solutions, please share with us. And stay tuned for our updates, perhaps a new method will appear that will help solve the error with limited Wi-Fi connection of personal computers on the MS Windows 7 operating system.

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 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 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.

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 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 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.