Not infrequently, users are faced with the problem of lack of Internet after connecting to a wireless point Wi-Fi access... Let's look at the main reasons why wi-fi does not work and solve the problems leading to network problems.
Important! As an example, the article uses the images and names of the parameters of the TP-Link TL-WR741ND router. In your case, the names of the items are probably different. In this case, the algorithm of actions is common for all routers. The general reasons for network unavailability are considered, regardless of whether you want to connect to a Wi-Fi network from a laptop, computer or smartphone.
Problem 1: the connection is successful, but there is no internet
If the connection to the router is established, failures in the settings and other problems are excluded, probably there is no Internet. For clarification, disconnect the Internet cable and connect it directly to the computer. If there is no connection, you should contact your provider. If the Internet works with a direct connection, then the problems are related to the router.
Problem 2: the Internet works with a direct connection to a PC, but the Wi-Fi network is not available
To determine the nature of the problem, it is important to clarify under what circumstances an error occurred that caused a violation Wi-Fi operation... Let's look at the most likely causes in this situation and how to fix it.
System crash
In the process of work, sometimes there are software errors. Usually, this problem is solved by rebooting the router for 1-2 minutes. In rare cases, it is necessary to reset the router settings.
To reboot, press the on / off button or remove charging unit from the network. To return the router parameters to their original state, open the router settings menu or use an external switch.
The router is new, the Internet settings are incorrect
When connecting a new router, it is necessary to carry out the initial configuration, where to set the settings for the Internet and activate the distribution of the Internet over the wireless network. If the router worked properly before, the settings are probably lost.
Open the control panel of the router, where select the WAN settings. Check the settings against the parameters suggested by the provider.
Wireless networking is not enabled
In the settings of the router, the item "Wireless Mode Settings", it is also necessary to activate the "Enable wireless router broadcast" and "Enable SSID Broadcast" parameters. Make sure the selected region is correct. Also check if the DHCP option is enabled.
Changed or updated firmware
After updating or changing the firmware, some parameters get lost. If the settings are correct, set back if possible. previous version firmware.
Problem 3: Wi-Fi network works, but sometimes disconnects
Overheat
Regular operation of the router under load, with a weak or absent cooling system, leads to malfunctions. In the best case, the data exchange speed will deteriorate. At worst, the device will turn off for a while until the temperature returns to normal.
Slide the back of your hand over the body. If you are not comfortable holding your hand, then the device overheats. Installing a PC case fan, for example, will lower the temperature.
The network is overloaded
When downloading a large amount of information, for example via a torrent, other subscribers physically lack traffic. The connection remains active, but it is not possible to use the Internet. In this case, it is worth limiting the download speed.
If uploads to this moment missing, check if third party connections... To do this, open the "Wireless mode" section, the "Wireless network statistics" item, where the connected devices are displayed.
Problem 4: only a specific device won't connect to the network
If a certain smartphone, tablet, laptop, etc. does not connect to the access point, there may be a system failure requiring a reboot. It is also necessary to enter the section "Wireless mode", then the item "Filtering MAC-addresses in the wireless network", where to check if the MAC-address is blocked this device... If so, the lock must be disabled.
Problem 5: all parameters are OK, but a certain device does not connect or does not see the network
Make sure that the device to be connected supports the broadcasting frequency of the router signal - 2.4 and / or 5 GHz. Otherwise, the access point will not appear in the list of “available” for connection.
Also open the "wireless settings", where change the channel or set automatic selection. Also set the 11bgn operating mode to support devices with old Wi-Fi modules.
There is a router or router in almost every apartment. It is an indispensable part for dividing the Internet signal across all devices connected to it. Many users take this device only because of its ability to distribute the Internet over a wireless Wi-Fi network.
At the moment, the main problems arise precisely with such devices and their wifi network. This is due to the fact that before the router was an expensive device and required certain knowledge in the settings. Now the situation has changed and the market offers a huge number of such devices. All of them have a user-friendly configuration interface that solves issues related to the operation of the device. Users willingly take such a router, successfully configure it, but when an error occurs, as a rule, they cannot solve it. They don't know what to do or how. And the manual of the device does not describe the solution to all problems that arise.
This article examines the issue when a computer connected by cable can work on the Internet, but there is no such possibility over a Wi-Fi network. All described actions do not require special tools and will save time and money while waiting for the master.
Symptoms of a wireless network problem
Many users facing the problem wifi networks think that the router is to blame for this and it must be replaced. But in 90% of cases, the problem is the incorrect configuration of the router or the computer that connects to the Wi-Fi. The most common symptoms indicating a malfunction are listed below:
- The wi-fi signal is not visible to the device.
- Frequent reconnection to wifi.
- Low speed of the Internet through a wireless network.
- Long connection to the router.
- The computer is connected to wifi, but there is no Internet connection.
If any of the above item appears in operation, then first of all it is necessary to check all the connection settings. In this case, the check must be carried out not only on the router, but also on the device itself, which cannot work on the Wi-Fi network.
Finding out who is to blame
If the computer was able to connect to the wifi wireless network, but there is no Internet connection, then you should find out who is to blame and why.
To do this, the first step is to check the provider's cable itself. You need to try connecting it directly to your computer and configuring the device. If you have Internet access, you should check the router.
As a rule, if the router works correctly with a wired connection, then it can be assumed that it is correctly configured. The only point is to check if its configuration has the ability to enable and disable the Wi-Fi wireless network. Maybe this setting is turned off and is affecting network performance.
If all the previous steps have been checked and no errors were found, it is worth making sure that the connected device to the Wi-Fi is not faulty. Most quick way checks are an attempt to connect to wifi with another laptop or smartphone. If such equipment is not at hand, then an algorithm will be described below that allows you to check the settings of the computer itself.
Causes of a wi-fi network malfunction
If access to the global network does not work, but at the same time a laptop or smartphone is connected to Wi-Fi, this may be due to three different errors. As a rule, two of them arise through the fault of the user himself. The third reason for the error is related precisely to the popularity of wireless routers.
So, below is a list of reasons that can cause malfunctions when wifi does not work correctly:
- Prescribed static IP address in the Wi-Fi adapter setting.
- An error related to the transmission channel of the wireless network.
- Invalid DNS.
All of them are easily removable and do not require doing something specific. The main condition is only for the user to remain calm and have everything they need at hand (router, computer, cable).
Static IP address in the wireless adapter settings or incorrect DNS
This malfunction can be determined during the check described above, when only the computer connected to wifi does not work. As a rule, it is associated with a manually registered IP address in the settings of the wireless adapter. The error occurs due to the fact that the registered address is in a different subnet or conflicts with the same, but assigned to another device. Why is this happening? This is due to the fact that by default the router distributes IP addresses and DNS information automatically, and because of this, it may happen that two addresses already exist on the home network.
If the user prescribes all this information manually, in principle, this will not be considered an error, the main criterion in this is the observance of the correctness of all data (free IP, correct DNS).
Sometimes also the reason when wifi is not working can be wrong DNS. User changes this information to block a certain category of sites (Yandex.DNS - parental control), increase the speed, etc.
To check the network settings of a computer or laptop, go to the notification panel and click on the wifi network status icon. As a rule, when there is no Internet, it shows the signal strength, but with a yellow triangle with an exclamation mark. 
Click on it with the right mouse button and select the item "Network and Sharing Center" in the list that appears. 
In the menu that appears on the left side, we are looking for the item to change the adapter parameters and click on it. 
Next, the user will see all connections on his device. There will be both wired and non-wired connections. To continue, you need to move the mouse cursor over the wireless connection and press the right mouse button. Then, in the list that appears, select the "Properties" section. 
A window should open, where a list will be visible in the center, in which you need to find an item describing the Internet protocol version 4. Select it by one click with the left mouse button (the item should be highlighted in blue). Then we press the button "Properties", which has become active. 
After that, the user will see a window where all the settings of the network adapter are stored. Here, you can change the IP address with the rest of the information (netmask and gateway), as well as information about DNS servers.
If there are any numbers here, then try checking the boxes on the automatic receipt of all the necessary information. Next, click the "OK" or "Apply" button. 
Then restart your laptop or computer and try to connect to the wifi network. If DHCP is enabled in the router settings, then the device will receive the correct address and will work on the Internet.
Wireless link error
What if the Internet does not work, but there is Wi-Fi and it connects successfully? In this case, all settings are checked both on the computer and on the device itself, which distributes the wireless network.
Many users ask this very question. Moreover, the more the popularity of the router, the more relevant this issue is. This is due to the work of wifi via communication channels. In a standard router, there can be 12 such channels of which you can choose one. By default, the router has this setting in the "Auto" mode. This means that the device is looking for the optimal channel and is working with it. But there are cases when the router of the user and his neighbor work in the same mode, which is the reason for many problems with the wireless network.
To change this setting in the router, you need to go to the device's web interface. Further, all the steps in the article are shown for a TP-Link router model. All steps are not much different from other manufacturers (just a different menu and interface) and can be applied to them.
To get to the router settings menu, you need to open any browser and enter the device's IP address in the address bar. You can find this information from the manual of the machine or the sticker on the back of the router.
Then the main menu will appear, where you need to go to the " Wireless connection"-" Settings ". 
Then you can see at the bottom of the appeared settings, a drop-down list of available channels. Here, it is recommended to select “ Auto mode"And click the" Save "button. 
After that, the device will ask you to wait a few minutes in order to reboot to apply all the settings.
As a rule, after all the described procedures wireless network works correctly. Cutting off all the questions: "What to do?", "Why?" And How?".
All malfunctions in which the router does not work correctly are mainly related to incorrect configuration. A common reason for this is that it distributes wifi, but the Internet does not work. To get rid of this problem, you do not need to do anything specific. As mentioned above, the very first culprit may be the communication channel. This is a common problem and it becomes more urgent every day.
The second moment when wi-fi does not work is the user's curiosity, who often likes to do various settings and experimenting with a router. Here, everything is easier, you just need to return the standard configuration of all devices, from the computer to the router (if required).
As mentioned above, modern devices have made great strides forward and can solve many problems associated with the operation of the network. But the router itself is a "soldier", what he was ordered, he will do. Therefore, if he distributes wifi, and the Internet does not work, then it is good practice to check the configuration of all devices.
All of the above reasons and their elimination should lead to a network connection, otherwise the router is simply faulty and must be replaced.
Magic WiFi programs. The latest development of computer technicians is the Magic WiFi program. This program makes it possible network card become an access point. Installing the program on a laptop or other electronic device automatically turns it into a kind of router that distributes Wi-Fi.
What to do if magic wifi wireless adapter is not found? The adapter serves to amplify the Wi-Fi transmission signal and, if the device does not see it, you must remove the adapter, then update the configuration and the list of networks, and restart. If this does not help, then set all the network parameters manually.
Why are other devices not working? When the wi-fi is connected, neither the tablet nor the phone is online and does not receive a signal.
Devices do not see the Wi-Fi signal
Here you can point to several factors, when corrected, as a rule, everything goes back to normal. Having eliminated these reasons, we will restore connections with other devices via Wi-Fi.
Four reasons for no signal:
- there is simply no receiver for wi-fi;
- the password is incorrect;
- the router or modem has a limited number of distributions (say, up to 4);
- you need to change the settings of the router.
Why is the Internet connected only via wi-fi? Immediately you need to check everything that is connected to the Internet via Wi-Fi. It turns out that on some devices everything is normal, but on others not, which means that the reason is in the device settings.
Perhaps the whole problem is in the router, then you need to reset its settings and configure it again. The setting is carried out according to the instructions issued by the provider.
Reset settings with the button. Also, a quick reboot of the device can solve the problem. To reset the settings, you need to find the “reset” button and hold it for a few seconds. There is an alternative option - this is the WPS button.
Let's analyze the problematic situation when the phone connects to Wi-Fi, but there is no Internet. It looks like this: next to the name of the wireless network it says "Connected", but when you try to open any site in the browser, an error is displayed Web-page is unavailable or 404 Not found ... Chrome still writes in such cases. The same applies to other software - all kinds of programs that use the Internet connection for their work, or at least check for updates at startup, will also give an error connecting to their web server.
In this article, we will share in detail how to fix the internet problem on your computer, phone or tablet. Read carefully, follow all the steps and you will surely find the reason why you do not have an Internet connection with a working Wi-Fi connection.
Gathering information about the problem
Before making any changes to the Wi-Fi settings of your router, computer or phone, check the following points. This can make it easier to find the reason for the lack of Internet or narrow down your search:
- Has the Internet been paid for and have you run out of funds on your account?
- is there a wire access to the Internet from a stationary computer?
- is it possible to access the Internet via Wi-Fi from other devices that use the same Wi-Fi router?
- does the internet connection still have a problem when connecting to a different Wi-Fi network?
Depending on the answers to these questions, it may already become more or less clear to you what the problem is most likely. For instance:
- if there is no Internet at all - neither by wire nor by Wi-Fi, then the reason may be both the blocking of access on the side of the provider, and a malfunction of the router. Next, we check with the provider if everything is in order with the line and account, and then we check the router's performance.
- if the Internet is on the PC via a wire, but not on any device via Wi-Fi, then the problem most likely lies in the wireless settings of the router. The same conclusion can be made if the Internet appears and works without problems as soon as you connect to another Wi-Fi network from the same device.
- and if it turns out that all devices are in order, and only one does not have an Internet connection, then the problem is obvious in this "client".
Wi-Fi is connected, but the Internet is not working. What to do?
So, if your Wi-Fi is really "connected", but there is no Internet (sites do not load, Skype and Viber do not connect, a yellow network icon is displayed on the laptop with the notification "No Internet access"), follow these steps to fix the problem. The steps are listed with a probability factor.
1. Reboot the router
Sometimes the unexplained happens router crash ... Wherein the local network and wifi are working fine, but no internet access. This can happen when the router is running for a very long time without reboots and when the provider's network changes. Just in case: it is written how to reboot D-Link remotely.
2. Reboot the device where there is no Internet connection (phone, laptop)
Sometimes on a smartphone (tablet, laptop) a certain crash (glitch) which can cause a similar problem. Visually, everything seems to be fine, but there is no Internet for no apparent reason. In order to exclude such a failure, restart the device.
3. Reconnect to Wi-Fi network
This step is very important, despite its simplicity and triviality at first glance. You need to forget the Wi-Fi network, and then connect to it again by entering the password (security key). This may solve the problem and restore the Internet connection, for example, if network settings have been changed user or virus.
4. Set the correct date on your Android device
Invalid date may be the cause of the internet problem. In this case, the sites will open, but Antiviruses may not work, Google play Market, etc. ...
5. Disable the proxy server
If your computer or Android device a proxy server is turned on, there may also be a situation when Wi-Fi is connected, but there is no Internet. Usually this problem occurs on Android.
6. Check the Internet connection settings on the router
Go to the WAN or Internet settings on the router. (). Check to be specified correct connection parameters , such as the:
- type of connection with the provider (see in the contract or on the provider's website);
- login and password, if required (see the agreement);
- whether the MAC address is correct (check in the agreement. If you reset the router, you may have to go to the office of the Internet provider with your passport and agreement and ask to register the new MAC address of the WAN port of the router).
If your ISP uses a PPTP connection, and your router settings are lost and now IPoE (dynamic IP) is selected instead of PPTP, then of course the router will not be able to connect to the Internet. In this case, sites will not open on any device.
7. Change the wireless channel
Wireless equipment that is in the neighborhood and operates on adjacent channels can create interference your router. Try changing the Wi-Fi channel.
Better yet, check first which channels are freer. This can be done using the Android app or InSSIDer for Windows.
8. Install WPA2-PSK + AES encryption for your Wi-Fi network
The WPA2-PSK encryption algorithm is the most secure. And AES encryption will provide high speed and safety. Most devices, even not new ones, successfully work in WPA2-PSK mode with AES algorithm.
Wi-Fi is connected, but the Internet is not working: other causes of the problem
Weak signal
If the distance from the client device to the router is too great, there may also be such a problem: the device received an IP address, but there is no Internet. Therefore, first you need to check if the Internet appears when you approach the router (if it is possible to get closer). Then - if the problem is precisely the distance - somehow try to shorten it. If the router is yours, place it in the middle of the house.
Some organizations provide free Wi-Fi, but in order to be allowed on the Internet, you need to launch a browser, enter a password, or go through some other authorization procedure. For example, indicate the phone number and enter the code from the SMS. It is better not to contact such networks and do not enter any information about yourself in order to avoid problems. It is much easier to find another access point without such nuances.
If you've done everything and still don't have an active Wi-Fi internet connection, there is another option: set up a static IP address. This method is not a solution in the full sense of the word, but in some cases it helps to bypass the problem and get access to the Internet. To do this on your smartphone, call the properties of the connection to the Wi-Fi network, check the box Show advanced options and select Static IP:
I hope this guide helped you identify and fix the problem with your Internet connection and now all your devices are connected to the network, both by wire and wireless. Please write your questions and additions to the article in the comments.
Connecting a laptop to a wireless, wi-fi, network does not always go smoothly. If you have problems, check out step by step instructions to help you troubleshoot. We recommend not to ignore this or that action, but to perform everything sequentially, as in the article.
Diagnosing the source of the problem
If your device, a laptop, is not successfully connected to Wi-Fi networks, the problem may be hidden in the wrong settings of the router. The first step is to find the source of the malfunction that leads to the connection error. Further "treatment" also depends on this.To determine the source, connect your iPad, smartphone, computer (any other device) to the Wi-Fi network. If the connection on any of the devices is successful, the conclusions are obvious - the problem lies in the laptop. And if you did not learn how to connect via a wireless network, as in the first option, then the router is not configured properly. We will consider both the one and the other case separately. So what if your laptop is the problem?
Hardware enable Wi-Fi of the laptop module
The diagnostics carried out earlier (see step one) revealed the following: if it was possible to connect, for example, a tablet or smartphone to a wireless network, then everything is in order with Wi-Fi, and the problem lies in the laptop.To solve it, the first step is to check the status of the wireless adapter of the “problem” device. It can be disabled, respectively, and the Wi-Fi network does not work on this device. The adapter is connected with a certain set of buttons and shows the operation with the help of a light indicator.
The indicator light is traditionally located on the front or side of the laptop. But there are some models of laptop computers that differ in the location of the indicator. For example, it can be located on a monitor (its body) or a touch panel. And there is a third group of laptops. They have a light indicator that shows whether the wireless network module is working or not working, located on the power button (that is, built-in).
A specific keyboard shortcut is required to connect the wireless module. Any combination begins with the Fn modifier key, to which one of the functional ones is added - F1-F12. If you take a close look at the function keys, you will see an icon for wireless, wi-fi, network.
Laptops from the manufacturer Acer differ from more modern models in that they include a wireless network module using a special two-position switch. If you have a laptop from this brand, you will most likely find this switch on the side. In the screenshots below, we showed how the Wi-Fi adapter turns on or off on laptops from different manufacturers.
Acer: Fn + F3
Asus: Fn + F3
Dell: Fn + F2
Fujitsu: Fn + F5
Gigabyte: Fn + F2
HP: Fn + F12
If the wireless module is working, connect via Wi-Fi network. Do you still have problems? So, follow the third step.
Software enable Wi-Fi of the laptop module
The second step we tried to fix the problem was to enable the wireless adapter in hardware. Now we will try to do this programmatically. This means that our next steps will be performed in the OS itself, the software that is installed on our laptop.If you have an operating room Windows system seventh version, follow these steps:
Step one To enable the Wi-Fi module, go to the "Network and Sharing Center" section (where the time is shown).
Second action On the left, click on "Change the parameters of the network module".
Step Three Here you will see a list of connections. When connected via a wireless network, the indicator should be on, if not, the module is disabled. Click on it and turn it on.
If the icon lights up, the wi-fi adapter is on.
Act four Go to the taskbar (where the clock and other icons are). As you remember, in the second step, the problem was that the wireless module worked fine, but there was no network to connect, which means that the router was not configured correctly. The picture shows 2 connection states in the task area of the desktop: the first - there are no available networks and the second is.
With the third step, you have enabled the wifi adapter, now you need to find your network and just connect.
The module was successfully enabled programmatically, now try connecting to a Wi-Fi network. Is the problem still there? Follow the next, fourth, step.
Installing / reinstalling drivers for Wi-Fi module
Now you need to check if the driver is on the system. In "My Computer" click on "Properties" and from there go to "Device Manager".
A menu window will open. This is where you need the "Network Modules". You need to find the name of your wireless module. In this name you will come across the word Adapter (if the operating system on the laptop is in English) or "Wireless network adapter" (if it is in Russian). For example, the name of the module would be: Qualcomm Wireless Network Adapter. Click on the name of the adapter and in "Properties" see how the device works. It should work fine.
Important information! If in " Network adapters"You did not find the name of the wireless module installed on the laptop, it means that there are no drivers. Download them from disk or find them on the manufacturer's official page.
Fixing connection problems in the router
In the first step, if you remember, we recommended that you, if possible, find the exact reason why the wireless network does not connect on the laptop. Depending on this, we proposed methods to eliminate the problem.What if the problem lies in the settings of the router? We cannot consider each individual case, since both the routers and the ones installed on them software(firmware) a sufficient number. Therefore, we will limit ourselves only to general tips that will help you, we hope, solve the problem with connecting a wireless, wi-fi, network.
- Place the router next to your computer.
- Check if the wireless adapter is turned on (if there is a light on the indicator).
- Is the wireless module turned on;
- Whether the broadcast channel is included in the Service Set Identifier;
- Check if your laptop's unique identifier (its MAC address) is blacklisted.
By running the diagnostics operating system described in this article, you must solve the problem of connecting wi-fi on a laptop.