Recently, I began to notice that the more people buy various equipment with WiFi - routers, modems, access points, TVs, tablets, etc. - the more problems arise with the wireless network: the signal disappears or is very low, the data transfer rate jumps or it is very low, the devices periodically fall off and can no longer connect. There are many reasons why Wi-Fi turns off, and it can be both software settings and a hardware malfunction. In general, a wireless network itself is a very capricious thing, the stability of which depends on many factors and conditions. Today I will talk about the most common problems and failures due to which the WiFi signal can be poorly received or even disappear.
WiFi signal suddenly dropped
- turned on the router. Try restarting it by turning off the power for a couple of minutes and turning it on again.
- If you have a laptop or tablet, check the battery charge. On many mobile devices, the Wi-Fi module can be forcibly disabled to save energy. Moreover, on Windows 8 and Windows 10 laptops, this option is often enabled in the adapter properties.
Also, it is worth checking the settings of the power supply scheme used.
- Walk about 2 meters to the router. No signal? Then you need for the test a known working device with a wireless network interface - a tablet, smartphone, phone, etc. If it works without problems, and your laptop cannot connect, then most likely there is a problem with the adapter driver on it. Try reinstalling or updating it.
Doesn't help and WiFi turns off on the laptop anyway? Take it to the service.
By the way, on laptops and tablets, there is often a case when, due to poor contact, the antenna turns off during shaking. In this case, you need to open the case and solder it back.
If the test device also does not see the home network, then the problem is on the side of the router. Try to reset it to factory settings using the "Reset" button and set up again.
Doesn't help - bring it to repair.
Poor or unstable Wi-Fi signal level
The reason for the deterioration of the quality of the wireless home network is most often the presence of several more access points in the vicinity. This is another common reason why Wi-Fi turns off. lately in apartment buildings this is a direct punishment of some sort. Almost every apartment has a router and every entrance has a dozen or so networks. In this case, there are two ways out: correct and cheap.
—Correct option but more expensive. Why? And because you have to buy equipment operating at a frequency of 5 GHz, since now it is already relatively inexpensive. An inexpensive dual-band router will cost about 3 thousand rubles. For example, a Totolink A2004NS router.
I think it is clear that a computer and a laptop will need to buy additional adapters - that's a couple of thousand more. But with smartphones and tablets, things are worse - some already have support for the 5 GHz band, but the simpler and cheaper ones will have to be left in the old range. But there will be no more problems with channel overlap and interference from neighbors.
- The cheapest option is time consuming and hemorrhoid. First, it will be necessary to constantly scan the range with the inSSIDer program in search of a free channel, and then set it in the router settings.
Secondly, you still have to drag most of the devices closer to the modem or router anyway, since even if the selected channel is free, interference can come from busy neighbors. And you can't get away from it. Only cover the house with foil in 5 layers.
I have no networks in the neighborhood, but WiFi still turns off. Why?
In this case, the most common reason is the wrong location of the access point in the apartment. To provide it with the maximum coverage, it must be located as close to the center of the dwelling as possible. If you have points where Wi-Fi from the router still does not finish off, then you need to install an additional device - a repeater.
The quality of the wireless network signal is greatly affected by:
- plasterboard (walls made of it or their finishing with plasterboard)
— reinforced concrete walls(reinforcement is critical)
- water. Very often in houses or apartments they like to put a large, large aquarium against the wall. After that, a whistle dance with a network may begin in the next room and the owner will be asked the question "why does Wi-Fi turn off ?!"
— electronic devices... If there is a lot of electronics (TVs, microwave ovens, radio stations) and the like in the space between the router and the computer (laptop, tablet, smartphone), then you will immediately notice a deterioration in the quality of work.
Do not forget that the reason that WiFi turns off can be software or hardware router malfunction.
In my memory, there is one case with D-Link DIR-615 K2. The owner complained to me - "Wi-Fi is missing!" I checked the settings - everything is correct. But after a while, the access point simply turns off. And everything works fine through the LAN ports of the router. The solution was a simple firmware update, after which the problem was safely eliminated.
Another case was with a device from QTech, where the contact of the internal antenna fell off the table when it fell off. The manufacturer regretted the solder. We opened it, soldered the antenna and WiFi does not disappear. Although, if you are not friends with a soldering iron, then if you suspect that Wi-Fi is missing due to a hardware failure, take the device to the service center.
Recently, I began to notice that the more people buy various equipment with WiFi - routers, modems, access points, TVs, tablets, etc. - the more problems arise with the wireless network: the signal disappears or is very low, the data transfer rate jumps or it is very low, the devices periodically fall off and can no longer connect. There are many reasons why Wi-Fi turns off, and it can be both software settings and a hardware malfunction. In general, a wireless network itself is a very capricious thing, the stability of which depends on many factors and conditions. Today I will talk about the most common problems and failures due to which the WiFi signal can be poorly received or even disappear.
WiFi signal suddenly dropped
I turned on the router. Try restarting it by turning off the power for a couple of minutes and turning it on again.
If you have a laptop or tablet, check the battery charge. On many mobile devices, the Wi-Fi module can be forcibly disabled to save energy. Moreover, on Windows 8 and Windows 10 laptops, this option is often enabled in the adapter properties.
Also, it is worth checking the settings of the power supply scheme used.
Approach the router about 2 meters away. No signal? Then you need for the test a known working device with a wireless network interface - a tablet, smartphone, phone, etc. If it works without problems, and your laptop cannot connect, then most likely there is a problem with the adapter driver on it. Try reinstalling or updating it.
Doesn't help and WiFi turns off on the laptop anyway? Take it to the service.
By the way, on laptops and tablets, there is often a case when, due to poor contact, the antenna turns off during shaking. In this case, you need to open the case and solder it back.
If the test device also does not see the home network, then the problem is on the side of the router. Try to reset it to factory settings using the "Reset" button and set up again.
Doesn't help - bring it to repair.
Poor or unstable Wi-Fi signal level
The reason for the deterioration of the quality of the wireless home network is most often the presence of several more access points in the vicinity. This is another common reason why Wi-Fi turns off. lately in apartment buildings this is a direct punishment of some sort. Almost every apartment has a router and every entrance has a dozen or so networks. In this case, there are two ways out: correct and cheap.
-Correct option but more expensive. Why? And because you have to buy equipment operating at a frequency of 5 GHz, since now it is already relatively inexpensive. An inexpensive dual-band router will cost about 3 thousand rubles. For example, a Totolink A2004NS router.
I think it is clear that a computer and a laptop will need to buy additional adapters - that's a couple of thousand more. But with smartphones and tablets, things are worse - some already have support for the 5 GHz band, but the simpler and cheaper ones will have to be left in the old range. But there will be no more problems with channel overlap and interference from neighbors.
- The cheapest option is time consuming and hemorrhoid. First, it will be necessary to constantly scan the range with the inSSIDer program in search of a free channel, and then set it in the router settings.
Secondly, you still have to drag most of the devices closer to the modem or router anyway, since even if the selected channel is free, interference can come from busy neighbors. And you can't get away from it. Only cover the house with foil in 5 layers.
I have no networks in the neighborhood, but WiFi still turns off. Why?
In this case, the most common reason is the wrong location of the access point in the apartment. To provide it with the maximum coverage, it must be located as close to the center of the dwelling as possible. If you have points where Wi-Fi from the router still does not finish off, then you need to install an additional device - a repeater.
- We go to the Device Manager (through the control panel).
- Expand the category "Network adapters" to see a list of all modules
- Find your adapter in the list and select the "Update" item in the context menu. Just don't be too hasty to choose automatic search. We are interested in "Search on a computer"
- A window will open where you need to uncheck the "Show compatible devices" option. A list of all versions of your driver will load on the right. We choose, guided by the index:
- We restart the system and try to connect.
These are, of course, not all methods of fixing a Wi-fi network problem. A fairly common cause of a malfunction is not a laptop module, but a router that does not distribute the Internet over a wireless channel.
I hope this material helped you. If so, please share the article with your friends and colleagues on social networks.
Couldn't solve the problem? Write the details in the comments, we'll figure it out!
Sincerely, Victor
As practice shows, the biggest problems for users when working with Wi-Fi and routers are not the connection process or even the setup process. The biggest problem is the moment when, after setting up, the Internet regularly disappears, a message about an interrupted connection constantly pops up, or you simply cannot open any site on a laptop. In this article, we will try to find out what these problems are associated with, and what to do if Wi-Fi is turned off on a laptop.
The reasons for the automatic disconnection of the network are quite common.
What could be more frustrating than experiencing interrupted connections while working on a laptop? Just now, everything was fine, and you calmly watched the movie online, and now the playback has stopped, the movie has paused, and the Internet has disappeared altogether. You can face a similar problem for a variety of reasons. The most common are the following:
- Your laptop has battery saving mode turned on. This leads to the fact that after the set intervals of complete inactivity of the device, the wireless connection is terminated automatically, the Wi-Fi adapter stops exchanging packets with the router and thereby saves battery power.
- The router you use to connect to the network is too far away or there are obstacles between it and the laptop. The result may be a weak received wireless signal, which leads to regular disconnections. This happens, as a rule, automatically and unnoticed by the user.
- The internet signal received by the router via a cable or cellular network and converted into a wireless Wi-Fi signal is too weak. At such moments, you can observe that the laptop is still connected to Wi-Fi, but the Internet refuses to work. Also, a weak signal transmitted over the cable may cause the wireless connection of the router and laptop to turn off automatically.
- The router through which you access the Internet is unstable, constantly freezes, and spontaneously reboots. In this case, Wi-Fi in your laptop is automatically turned off until you turn on the router again, restore the operation of its software, or until a forced reboot.
- Your laptop has an unsuitable or outdated wireless adapter driver. As a result, the operation of the adapter becomes unstable, and it may spontaneously interrupt the connection or not find available networks at all.
Here we have listed only the most common problems that users regularly encounter. But at the same time, many do not know what to do next and how to get rid of problems.
Battery saving mode
We definitely recommend that the first thing to do is to check if the power saving mode is activated in your computer. It is a built-in feature of the Windows operating system that monitors how you use (or not use) certain elements of the system and certain components of the PC. If any of them is idle for a long time, it is automatically turned off by the system. Windows does this in order to save battery power, which is sometimes the only power source for a laptop.
To turn off the battery saving by interrupting the wireless connection, you need to open your PC's Control Panel, find the Power Options category and select the Power Scheme Setup, which is currently the default on your system. Everything you need is under the link Change advanced power settings. In the small system window that opens, go to the following path: Wireless adapter settings> Power saving mode and change the values to Maximum performance. Click Apply and close all windows. This procedure will get rid of the situation when the Internet is disconnected at the request of the operating system.
Weak router signal
As a rule, a weak signal from a Wi-Fi router can be the reason for the regular disappearance of the network connection. Since the signal of a router is the most common radio wave, a variety of factors affect its power, which can affect the quality of the connection. The distance between the laptop and the router is not always the main reason for the decrease in signal strength. It can also be additional obstacles located between the receiver and the transmitter of the wireless signal. For example, in a large room with several rooms or offices, walls separating the laptop and router can significantly reduce the quality of the connection. In such cases, you should think about revising the location of the router or expanding the radius of the network using special amplifiers.
Also, the quality of the connection may be affected by the presence of electrical appliances, which inadvertently interfere with the propagation of radio waves. As a result, a connection loss error is regularly displayed on the display.
Metal objects between the Wi-Fi router and laptop also noticeably reduce the stability of the connection in the wireless network through which you access the Internet. Consider this when organizing your home LAN.
Weak network signal
If the signal is too weak from the Internet provider via cable or cellular network, the router may become unstable, disconnecting the access point and interrupting the connection with devices connected to it. In such a situation, it is better to contact the provider's support service, describing in detail the essence of the problem. If we are talking about a mobile router and about its operation in places of uncertain signal reception, where a message about the search for a network is displayed on the display of the router or mobile device, an external antenna can improve the reception quality. To clarify information on the coverage of specific settlements with a network, you should also contact the provider's representatives.
Unstable operation of the router
If you observe unstable operation of the router, which leads to the regular disconnection of the wireless connection, we recommend that you restart the device several times and closely monitor its further operation. Alternatively, go to its control panel, check for software updates and install them if necessary. Since the router runs under a special operating system, it, like any other, can accumulate system errors, work unstable and require periodic updates.
A full reset of the router's settings can also help. We recommend doing this only if you know the parameters of its settings for your provider and can re-configure it yourself after the reset. Otherwise, contact the provider through the official website or by calling the hotline.
Driver crash
If the driver of the wireless network adapter has not been updated in your laptop for a long time, or you began to observe problems with disabling Wi-Fi after the last reinstallation of the operating system, it may well be that an outdated or not the most suitable driver is installed. We recommend that you find out the manufacturer of the network adapter installed in your laptop and download the latest driver. We recommend doing this by all means on the official website of the manufacturer.
Conclusion
Whatever the reason for disabling Wi-Fi on your laptop, one of the troubleshooting instructions below can help you get your network back on track. If you have tried all the instructions in this article, but none of them helped to identify the cause and get rid of the problem, you should contact the service center to test your router and network adapter in your laptop, since the problem seems to lie a little deeper.
10.08.2017Many users are faced with the fact that they constantly turn off WiFi on a laptop. Thus, the connection to the Internet is cut off, important notifications and notifications do not come, and after all, without the Internet, as you know, it is impossible to live at all. Many blame the manufacturers of devices - a laptop or a router for this, although the problem is most often easily solved with a couple of mouse clicks.
Today we will study the main possible reasons for this situation, and find out what to do if WiFi stops working on a laptop.
WiFi is disconnected on laptop - we solve the problem!
If the laptop's connection to the Internet via WiFi is unstable and constantly breaks, then there may be several reasons for this - both certain operating system settings and a device malfunction, or poor communication from the provider or operator of the cellular network.
xxx: Before, when guests came to the house, they were offered tea.
xxx: And now - WiFi password =)
Perhaps you should also pay attention to this video to understand what factors affect the stability of the WiFi connection.
Disable battery saving
The main reason for the constant disabling of WiFi on laptops lies in the power and energy saving settings. Since a laptop is a battery-powered mobile device, manufacturers are trying to reduce the device's power consumption in favor of greater autonomy and longer battery life.
By default, the device's performance on battery power is slightly degraded in favor of power saving. Also, in order not to waste electricity on unused functions, the operating system turns off some components of the computer. For example, if the WiFi connection is idle or not actively used, the WiFi adapter may be disabled to save energy. Therefore, your favorite laptop, left unattended, carefully disables unnecessary functions and deprives you of a stable Internet connection.
Power settings are located in the control panel. However, please note that the manufacturer often installs additional programs to control power consumption, and the reason for disabling WiFi may be hidden in them.
Let's open the taskbar and select the power supply item. The control panel and the item we need can be easily found using the search.
In the power supply window that opens, you can see which power management scheme is active at the moment, as well as go to its detailed configuration.
In the window that opens, you can configure the screen off time and the sleep mode timeout. We are interested in the item that changes additional power options.
Find the item responsible for WiFi operation. Here it is long referred to as a wireless network adapter. Change the value to high performance.
After changing the power plan, restart the device and check if the problem is resolved.
Reboot the router
If the problem persists, restarting your router may help. The easiest way is to unplug and turn on the device.
You can also reboot the device through the administration panel by going to the address 192.168.0.1 or 192.168.1.1 in your browser, entering your username and password, and clicking the corresponding button. The exact address and reboot method depends on the device model, and the login and password should be changed from standard admin / admin to your personal ones.
We check the network signal and the stability of the Internet connection
How to increase the speed of a wi-fi router and the Internet, we discussed in one of the previous articles. In our situation, it is worth paying attention to how far the router is from the laptop and through which obstacles the signal passes.
If, in addition to WiFi, the Internet is unstable over a wired connection, it may be worth calling the provider and solving the problem of the bad Internet with him.
Internet speed can be easily checked using an online service speedtest.net- after all, if the values differ from those declared by the provider downward, this is a reason to be puzzled by the quality and level of the signal.
Reinstalling the driver
Reinstalling the wireless adapter driver may also help. To do this, you need to do the following:
- go to the website of the manufacturer of your laptop;
- enter the model of your device;
- select an operating system;
- download the latest version and install the new driver.
The software download method differs from device manufacturer and model. Try to download the latest drivers for your operating system and device.
We have sorted out the most popular reasons leading to the fact that laptop WiFi is constantly turned off. It's good if the problem is solved by changing the power plan, and the performance of both the router and the laptop does not raise any questions. If the problem has not been resolved, it may be worth contacting a specialist.
Electronic gadgets: computers, laptops, smartphones and tablets are in every home. In order for all devices to receive unlimited access to the Internet, users install routers in their apartments. These devices provide wireless access to the network from a single exit point. But here people are faced with the situation that the Internet through a router periodically disappears. We will tell you how to solve the problem yourself, without the involvement of specialists.
wi fi can be lost on any devicePossible reasons
If your internet speed jumps, check your router's network access. With stable access, the indicators should glow solid green. When there is a fault on the line, the indicators blink. The network is lost due to interference or incorrect device settings. You can solve the situation by rebooting the router; for this, there is a button on the rear panel.
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If the connection with Wi-Fi is lost, the following messages are displayed on the monitor screen:
- No internet access. The problem is caused by improper connection or line problems. In this case, the Internet is lost via cable connection and remote access.
- Obtaining an IP address. due to incorrect network settings. Check the setting in Network Sharing Center.
- The connection is broken. If consistent, adjust the power setting. In particular, deactivate disabling network adapters to save energy.
If the signal is unstable and the speed is poor, contact the technical support of the provider.
Important! The provider is not responsible for setting up a home connection, if this item is not specified in the connection agreement!
If there are no technical faults on the line, and the signal level is still low, the problem may lie in the reception. If Wi-Fi on your phone disappears, move your gadget closer to the access point. If the speed has increased, there is interference between the device and the router. The way out is to install an additional amplifying antenna. When the signal strength does not depend on the distance between the device and the access point, you need to look for a free connection channel. This situation is typical for apartment buildings, where several routers operate at the same frequency. Let's see how to solve this problem.
How to connect to a free frequency?
If Wi-Fi on the router disappears, then you need to install the InSSIDer program on your computer. The application will scan the available wireless networks and display the free channels graphically.
Note that the utility costs money. The free version is only available for mobile devices on the Android platform.
Let's figure out how the utility works.
The same graph shows that the fourth channel is free. To troubleshoot connection problems, you need to connect the router to a different frequency.
Please note that it is recommended to select a channel that is as far away from other frequencies in use as possible. It should be borne in mind that the frequency width varies within 20-40 MHz, and the channels are located 5 MHz from one another. Accordingly, the selected frequency will invariably overlap with adjacent ones. Correct channel selection will fix the problem when laptop loses Wi-Fi network. It is worth noting that the models of routers have from 11 to 13 channels of available connection, so it will not be difficult to reconfigure the device.
If the network on the phone is lost, the mobile application will help. This utility will not only determine the free frequency, but also help to check the quality of reception at various points in the apartment. The application displays a graphic image of wireless networks, allowing you to select the optimal frequency. Thanks to this, you can fix the situation when Wi-Fi disappears on a tablet or mobile device.
Other options
You need to check the default setting of the router.
- The set parameters must match the recommended ones. If there is a discrepancy, the device does not work correctly. Some routers may not be able to handle the flow of information.
- In addition, budget models do not support dual-frequency operation. High speed and dual stream connections are overheating the router. As a result, unstable operation and unreasonable connection breaks appear. In this case, the solution to the problem is to replace the router.
There are several ways out of the situation, using the above tips, you can establish a stable wireless connection in the apartment.
It is not uncommon for me to be asked questions about a problem when Wi-Fi disappears on a laptop or computer. Not just disconnecting from the network, but completely disappearing the Wi-Fi adapter and the connection itself. Everything related to Wi-Fi disappears in Windows. No wireless adapter in network connections. No Wi-Fi button, notifications panel icon, and no options section (if we're talking about Windows 10)... There is also no WLAN (Wireless) adapter in the device manager, which is responsible for connecting to wireless networks. Well, and accordingly, the computer does not see the Wi-Fi network, and there is no way to connect to them.
In most cases, the problem appears suddenly. Everything worked, turned off the laptop, turned it on and there was no Wi-Fi on the laptop at all. In some cases, such a nuisance may appear after updating Windows or drivers. Or maybe after installing a program, or changing settings. From my own experience, I can say that it is not uncommon for Wi-Fi to disappear after cleaning a laptop from dust, or repairing it.
Two important points:
- It happens that a laptop simply does not see a particular network, or all networks. In this case, the adapter is in the device manager, there are settings related to the wireless network, etc. This is a slightly different problem that I wrote about in the article and.
- It may also be that he himself. In this case, the network is not available on all devices.
To find a solution, you must first understand the reason. Why did it happen that the laptop suddenly stopped seeing Wi-Fi networks and there are no settings at all related to this.
- You need to think and remember what you did before the problem appeared. Perhaps the solution will come by itself.
- Reboot your laptop. If you have Windows 10, then you need to reboot. Not Off / On.
- If you have a PC with an external Wi-Fi adapter, then check if it is connected. Try plugging into a different USB port. Note if the indicator on the adapter is flashing.
- If Wi-Fi disappeared after cleaning or repairing a laptop, then most likely it was simply not connected (badly connected, damaged) the Wi-Fi module itself in the laptop. If you have done this yourself, then disassemble the laptop and check the connection of the Wi-Fi module and antenna.
Wi-Fi adapter disappeared from device manager
If the network cable is not connected, the icon on the notification bar will look like this:
If you go into the adapter management, then most likely there will be only Ethernet (or "Local Area Connection" in Windows 7)... Well, maybe even Bluetooth. And we need an adapter "Wireless network", or "Wireless network connection".
In the device manager, open the "Network adapters" tab. Most likely, you will not find an adapter in the name of which there is "Wireless", "WLAN", "Wi-Fi". And we just need him.
Look for an unknown device in Device Manager. Or devices with a yellow exclamation mark. If so, it is quite possible that this is our wireless adapter, which simply has problems with the drivers.
Pay particular attention to the "Other devices" section. Is there something like "Network Controller" there.
If it is, then you just need to install the driver.
How to fix the problem and return the Wi-Fi adapter?
Unfortunately, as I wrote above in the article, in most cases this is a hardware problem. That is, the breakdown of the module itself. And programmatically (with some settings) it cannot be solved. You need to change the module itself, or connect an external adapter via USB. If it's a laptop.
All decisions boil down to reinstalling the driver on Wi-Fi. Perhaps if the adapter itself is good it will help. Well, you can also reinstall Windows. There may be something in the system, but it is very unlikely.
And so, back to the driver. You just need to go to the laptop manufacturer's website, search for your model and download the driver for WLAN (Wi-Fi). Then start installing it. If at the beginning of the driver installation an error appears that the device was not detected in the system, or something like that, then I am almost sure that this is a hardware failure.
Detailed instructions for installing drivers:
- And separate installation instructions and.
If you have tried everything, and in the device manager there are no adapters associated with wireless networks at all, including unknown devices, then you will have to carry the laptop for repair, or connect a USB Wi-Fi adapter. There are small ones that are great for laptops.
Wi-Fi is a technology that allows electronic devices to transmit data or connect to the Internet over a wireless network. These days, the use of Wi-Fi is becoming very common and we can see this technology being used by a wide variety of devices such as smartphones, tablets, game consoles, smart TVs, etc.
However, this technology has a number of limitations. Firstly, it is not as secure as a wired connection, but this is solved by using secure access encryption (WPA2), which prevents unauthorized access to the network. If you do not have sufficient knowledge to set up a home or office network, then it is better to entrust this matter to professionals. It is enough just to fill out the form at http://kompom.kiev.ua/ and the setting will be done quickly and efficiently.
Another problem: Wi-Fi is intermittently lost. Usually, in the absence of activity, the phone or tablet loses its connection with the wifi router and does not see the network until the Wi-Fi is restarted on the mobile device. There can be several reasons why the connection to Wi-Fi is lost, in this article we will consider several options for solving the problem when Android loses the Wi-Fi network.
If you are faced with the problem of turning off Wi-Fi on your Android device, try the following settings and you can connect your device wirelessly without much hassle.
Wi-Fi network overflow
The greatest interference to a Wi-Fi signal is from nearby wireless networks. The problem is that most Wi-Fi devices operate in the already occupied 2.4 GHz band, and high signal density can interfere with each other, reducing the speed and performance of networks.
Solution: Use a dual band router that can operate both 2.4GHz and 5GHz at the same time. The 2.4 GHz band will be supported by most devices, but it only has three non-overlapping channels. On the other hand, 5 GHz has 23 non-overlapping channels, increasing the likelihood of no interference in this range. If your router can operate in the 5GHz band, use it to solve the Wi-Fi congestion problem.
Setting up a Wi-Fi channel
The 2.4 GHz Wi-Fi band has 11 channels and each of them is separated from each other by a 5 MHz band and has a width of 20 to 22 MHz. This means that each channel will overlap adjacent channels by 10 MHz and this is referred to as overlapping channels.
Solution: If channels 1, 6 and 11 are used, there will be no interfering overlap as these are not overlapping channels. To work on these channels, users will need to go into the router's settings and find a setting called “Channel” or “Wireless Channel”. From the drop-down menu, you need to select the desired channel number.
Most manufacturers use a variety of methods to maximize battery life. Android smartphone users are forced to enable such power saving features in their devices. One such feature is to turn off Wi-Fi when the phone is inactive or when the device has a low battery level. This feature of Wi-Fi in sleep mode creates problems connecting to the network as needed.
Solution: Just tweak the settings of your Android device and make sure you always have Wi-Fi turned on, even when the device is not in use. To do this on devices running Android 2.3 Gingerbread and above, you need to do the following. Go to the Settings menu - Wireless networks- Wi-Fi and select Advanced - Wi-Fi in sleep mode do not select “Do not turn off”.
On those devices that run Android 4.0 ICS and higher, go to Settings - Wi-Fi, select Advanced and set the Wi-Fi during sleep option - "Always".
Change DNS servers
Changing the DNS servers can solve the Wi-Fi problem when the internet connection on the phone is lost. Go to Settings - Wi-Fi and turn on Wi-Fi. If it is a known network, you will have to “forget” it and then reconnect. When you see the password entry window, click on Extra options and select “Static” from the IP settings in the drop down menu. Then scroll down and enter the IP address of the DNS server you would like to use in the DNS1 and DNS2 fields. Now enter the Wi-Fi password and connect the network.
Factory reset
If none of these methods work, perform a hard reset on your Android device. If after doing this you have problems when your Wi-Fi connection is lost, then it might be a hardware issue. You may need to take your device to a service center to fix the problem.
We've covered the most common causes of Wi-Fi disconnection that happen on Android devices. We hope this will help in solving the problem and will allow you to set up a stable Wi-Fi connection. Also, look for dedicated apps, as there are many apps on the Google Play store that you can use to help ensure a secure connection. Some of them are Wi-Fi Fixer, Fix My Wi-Fi, Wi-Fi Analyzer and others.
