How to find out the Wi-Fi channel on a laptop. Change the channel on the router

Wi-Fi channels: which channel to choose for a Wi-Fi router and how to find the best?

This article refers to how to find a free Wi-Fi channel on a router and change it in the settings of the router. We will also talk about which wireless width of the wireless network to choose in the frequency range 2.4 GHz or 5 GHz. Every year with the spread of wireless technologies, the loading of networks is becoming higher, which means the topic of channel changing and changing its width is becoming more and more relevant. Therefore, then I will show how to check the ether from the Android or iPhone smartphone using the scanner program. Then conduct an analysis and find the best free Wi-Fi channel, configure and change it at various frequencies on the routers TP-Link, Asus, D-Link, Zyxel Keenetic, Tenda, Netis, Upvel, Mercusys, Huawei and Apple.

As you know, now in large and not very cities of wireless Internet there are almost everywhere. But despite the fact that a 5 GHz frequency range has been developing for a long time and slowly develops, most devices are still sitting on a clogged “I can’t” frequency 2.4 GHz (you can read more about the difference between these ranges in my other publication).

The number of simultaneously working routers at frequencies 2.4 GHz and 5 GHz grow steadily. And it turns out that at the same time in the same range on different Wi-Fi channels, many local networks work. They interfere with each other with their crossing signals. over, in 99% of cases, routers are configured to choose a channel in automatic mode and do this not always adequately. As a result, the signals are mixed, interferes and interfere with each other to work. Because of this, the speed and quality of the Internet falls.

But everything is not so bad, since there are several Wi-Fi channels in this range, which means that we can choose the one that is more free and set up our router on it. 13 channels are available in the CIS countries for use.

That is why I advise you to find a free Wi-Fi channel without fail after the initial settings of the router and change it. Especially if you plan to work at frequency 2.4 GHZ.

What are Wi-Fi channels, which is the essence of the parameter

Modern routers are supported from 1 to 23 channels depending on the frequency, model of the router, country and other factors. At the same time, Channel itself is a certain under frequency, which is used to work the device. The more devices operate on one Channel, the greater the number of interference, and the lower the throughput. This is why every user should know which channel to choose for a Wi-Fi router.

Immediately note that modern routers operate on two types of frequencies:

  • 2.4 GHz is an outdated frequency option that the most devices support. The number of Channel Wi-Fi is limited to 13, in some countries, for example, in the USA, there are only 11 of them. This leads to an increase in the number of interference and the emergence of problems with the network. The standard applied. up to 802.11n.
  • 5 GHz. a more modern frequency that allows you to work on a larger number of Channel. When considering the question of which channel it is better to choose for Wi-Fi at a frequency of 5 GHz, the administrator of the network has more options-23. Applied standards from 802.11ac and above.

The parameters are set by the administrator-a person who has access to the Wi-Fi Router settings. How to make these changes we will consider in the last section of the article.

Note that in the Wi-Fi network there are two types of Channel-overlapping and non-overwhelming. In the latter case, we are talking about numbers 1, 6 and 11. It is believed that their installation gives the least number of interference. But it is not always the case. To choose the optimal Wi-Fi channel, it is necessary to analyze the network.

In the search process, you need to be careful. If many equipment is connected to one Channel, this affects the speed and quality of communication, as well as the number of interference. This situation occurs when many neighbors are sitting, for example, at 11 under frequency. To solve the problem, it must be changed.

But remember that this is far from the only factor that affects the loading. For example, disputes on the topic still do not subside: does the router affect the speed.

Wi-Fi frequencies: 2.4 and 5 GHz-full analysis of Wi-Fi ranges

Hi, my dear reader. I hope you are doing well and the sun shines over your head. And today I (the magician magician in the third generation) will tell you about all the secrets of the frequencies of the Wi-Fi network. We probably start with Wi-Fi definition-this is a certain standard of radio broadcasting, which is used to spread numbered data packets between two or more devices. In particular, the radio broadcast standard is used. IEEE 802.11, which was in the first used by Alliance in 1999. The standard itself was invented a little earlier in 1998. But you came here to read about the frequency and waves, so in more detail about them.

Data transmission occurs by conventional coding, and later redirecting the code to the transmitter. He, in turn, reformates the electronic signal in the radio wave of radio wave is also used in the transmission of information in mobile communications, television and also in warming up food in a microwave oven.

As a wave, as you probably remember from physics, there are three characteristics: frequency, amplitude or height, as well as length. It is the first that determines the transmission channel, as well as the speed of transmission for individual higher frequencies.

In particular, initially only one standard with a frequency of 2 was used from 2000 to 2009.4 GHz. At the moment, it is the most common, as it has a high data transfer speed and a larger distribution range.

The signal attenuation

It depends on the obstacle directly. The greater the width of the obstacle, the stronger the attenuation. You also need to take into account the material. Here is a table of exemplary attenuation.

Material Width (cm) Signal loss in db (P) percentage of loss in the range (%)
Street without obstacles
Reinforced concrete 5 25 90
Glass 0.5 3 26
Wood 2 9 45
Concrete fifteen twenty 75
Concrete 31 23 82
  • W is a complete radius of the deeds of a wave without obstacle.
  • P is the percentage of loss of the range.
  • D is the final wave of the wave after calculation.

Let us give an example: the range of waves W is 150 meters in open areas. We will put in the way the waves of glass of 1 cm. Then 150 (100%. 26% 2) = 78 meters. As you probably saw, the most serious obstacle is metal. When using it, it can be used as a wave reflector.

Also, a worst connection can be attributed to the ability to go through an obstacle. And this characteristic also depends on the wavelength. Since 2.4 GHz has a larger wave size, then it is able to go around a wider obstacle almost without loss than a wave of 5 GHz. That is, the larger the length, the lower the speed of the transmission, but the fading from obstacles is less.

The attenuation can be attributed, as well as a natural loss of signal power, which decreases over time a wave bundle. From the barriers, the wave as well as light can be reflected. The more the wave is reflected, the weaker the signal becomes. That is why it is impossible to say exactly how far this or that router will beat.

What frequencies are allowed in Wi-Fi frequency has individual characteristics and use of use. So, low.frequency signals do better with obstacles on the way, but have a high level of interference and noise. That is why when choosing it is important to focus on specific tasks and the current situation.

There are many options in total. 900 MHz, 2.4 GHz, 5.0 GHz, 10 GHz and T. D. At the same time, the permitted Wi-Fi frequencies in only two-2.4 and 5.0 GHz. It is they can be used without licenses. Most routers support 2.4 GHz, but recently there are routers that allow you to independently choose this parameter.

There is another point that you need to know. the frequency range that is available in this, the frequency spectrum of 2.4 GHz implies conditional division into 13 channels. Each of them is characterized by a certain range of work. For example, the 1st channel involves the transmission of the signal within 2.401. 2.423 GHz. As for the 13th Channel, the range from 2 works here.461 to 2.483. A similar situation is characteristic of other channels.

A dumb other approach to the Wi-Fi frequency range is used for 5 GHz. Unlike the last version, more “high” channels are used here. from 34 to 180 (some of the Channel fall out of the list). Each option is characterized by its own range. from 5.17 to 5.905. In indoors, from 5150 to 5350 MHz is used.

How to change the frequency of Wi-Fi router?

When buying, you need to pay attention to what frequency Wi-Fi router works. Most devices that are installed in houses and lie on store shelves operate on 2.4 GHz. Recently, a new type of routers supporting two operating modes has been gaining popularity. 2.4 and 5 GHz. This solution allows the client to choose the operating mode of work himself taking into account the current situation and the requirements for the quality of the wireless network.

Knowing how to change the frequency of Wi-Fi router, you can adjust this parameter and achieve better communication quality. Approaches to the change in the indicator are individual for each router, so we consider the option on the example of TP-Link Archer C5. The device supports two frequencies, which allows you to create the same Wi-Fi networks. One will work on 2.4, and the second for 5 GHz. All settings are carried out through a PC or other device connected by wireless.

To change the frequency of the router, open any of the browsers and drive into the address line of the number 192.168.01.

You can prescribe the address of the TPLINKWIFI router.Net. After that, enter the setting panel according to standard data (if they did not change). twice admin. The necessary information can be obtained if you look at the lower part of the Wi-Fi router.

After you make changes, check the signal level. Since the change in some parameters can entail a fall or increase in other indicators.

2.4 GHz

Setting the first frequency of Wi-Fi signal (2.4 GHz) begins with the transition to the Wireless 2 section.4 GHZ. Next, do the following:

At this moment, the compound may disappear. The gap time is about a minute. Wait for communication recovery, and then continue the configuration. Do the following:

After that, reboot and you can start work.

5 GHz

As noted, Wi-Fi frequency of 5 GHz is permitted and can be used for a home network. If this option is chosen in the settings, take such steps:

  • Go to the settings section;
  • In the Network Name field, indicate the name of the Wi-Fi network (if 2 profiles are 2.4 and 5 GHZ work in parallel, it should differ from the first name);
  • In the channel section, put the car;

As in the past case, a temporary network loss is possible. Wait for communication recovery, and then continue the Wi-Fi frequency settings.

Now save and reboot. After that, you can use a router in one or two frequencies at once. It all depends on the set settings.

How to change your WiFi channel and avoid neighbor interference

How to find out what frequency Wi-Fi Router works at?

Many users are faced with a dilemma-how to find out what frequency Wi-Fi operates the AC standard. If we talk about the factory data, the necessary information can be looked at the instructions for the device or on the case itself. To see the real parameter, you can go in two ways:

  • Settings. To find out the frequency of the Wi-Fi router, enter the mood panel according to the principle that is considered above. Look there in what mode the router is currently working. Several options are possible here. 2.4 GHz, 5 GHz or mixed mode.
  • Program. Another option to find out the frequency of the Wi-Fi router is to use a special WiFiinfoView program. It is often used to select a unloaded channel, but you can also use the frequency range of work. The peculiarity of software is that it has a low weight and does not require installation on PC. All that is necessary is to download the software, unpack the archive and launch an exe file. Software immediately starts and gives the necessary information on the channel and the current frequency of Wi-Fi range. The advantage of the method is that you do not need to go into the settings of the router.

You can use other programs, but a more reliable way to enter the setting panel of the router and see the selected option.



Download the program from here. After scanning, you should see such a window as in the picture from below.

How can you notice at the very beginning you will see the name of the networks. Further, the channel numbers are coming. If your router uses 20 Hz and 40HZ at the same time, then there will also be a plus of one value. For example, 11 7. uses two channels at once. I have 20hz in my settings, so my router has only one frequency. You can also see the MAC broadcasters and the signal level in the RSSI line-the larger this value, the stronger the signal. Thus, you can find out which neighbor is jamming your wi-fi network.


Download from here. We are looking for the line “Channel Number”.

Free Wi-Fi Scanner

Here is a link for downloading. click. In the Signal Quality field you can immediately look at the signal power. Achievable Rate is the maximum network throughput, but not speed. It is calculated on the basis of what the standard is currently used. b, g or n.

How to choose the width of the Wi-Fi channel (20, 40, 80 mhz)-which bandwear is better for 2.4 GHz and 5 GHZ on a router

During the connection of the router, many users have difficulty causes the “Wi-Fi channel width”, which appears when setting up a wireless network. For each of the frequency ranges (2.4 GHz and 5 GHz) There is a choice of one of several values ​​in it. 20 MHz, 40 MHz, 80 MHz or Auto. Which one is better to choose? In theory, it would be possible to leave everything to the reduction of automation so that the router himself, based on his analysis of the current state of the network, chose the optimal mode for work. However, as you know, the robot does not always work correctly. And for the fine Wi-Fi setting, it makes sense to independently figure out what the channel width width affects, and which one to choose and how to change it later if necessary.

In simple words, the width of the Wi-Fi channel (Bandwidth, Channel Width) is its throughput.

I already talked in detail about what the Wi-Fi network channel is. In short, this is a separate segment inside one frequency range on which wireless devices operate. In the figure below, they are marked in the form of arcs.

In order to prevent all these gadgets from interfering with each other, they are spread according to different segments, choosing the most free channel by hand. In the range 2.4 GHz only 13 channels, 5 GHz has already 33. But the length of these arches is just the width of the channel. By default, it is 22 MHz, but in the settings of the router to simplify indicate the value of “20 MHz”

In order to make it wider, you can increase the value by 2 times so that it becomes 40 MHz. And here we came to the next question.

5 Router Settings You Should Change Now!

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What does the width of the Wi-Fi channel affect?

The width of the wireless channel directly affects the speed. The wider the channel, the more devices can simultaneously exchange data. The same as comparing a single-column railway with two-, three- or even four-lane, which can simultaneously miss much more trains and transport more passengers. Only passengers in our case are data that laptops, computers, smartphones and TV prefixes through Wi-Fi router exchange among themselves. Therefore, on it you can manually assign a certain value.

It would seem that we put the number most. and there will be happiness? But not so simple. The fact is that outdated devices may not support more modern standards. And if, for example, set the channel width of 40 MHz, then they will no longer be able to connect to such a Wi-Fi signal. In addition, the wider the channel, the less distance the signal “shoots”, which means the reception area is reduced.

Therefore, there is a general rule, which channel width is more optimal to choose in one case or another

  • 20/40/80 MHz (auto). default value that is suitable for most users. It is recommended to leave it precisely for universality and in the absence of problems with the network
  • 20 MHz. can be installed if there are interference from other people’s routers and unstable operation of a wireless signal. With such a width, 3 non.overeating channel in 2 are created.4 GHZ, which means if you connect three devices to the router at the same time, then they will not interfere with each other in any way. Suitable for an apartment building with many surrounding networks, which create interference
  • 40 MHz. cuts off from the possibility of working with a network of some gadgets. There is also only one channel at 40 MHz, which does not intersect with others, which means that Wi-Fi comfortably will work with only one device. Connection of each new creates additional interference. We use only when the automatic mode does not help or if you live in a separate house and use the MESH system.

If the control panel for your router does not have a Russian language, then in the settings you should look for a item that is called “Bandwidth” or “Channel Width”

How to install Wi-Fi channel width on TP-Link router?

To change the channel width on the Wi-Fi Router TP-Link, you must go to the main menu “Additional Settings” and open the internal section “Wireless Settings”


Airscout Live for the Android operating system will be able to turn a smartphone into a Wi-Fi network scanner. The program works in 7 modes, 4 of which are free. It can be used to detect all active access points, determine the channel’s workload, measure the signal power of each connected point, identifying places where the signal level is insufficient. Can be used to determine the sources of interference with the analysis of the parameters of the use of channels at 2.4 and 5 gigaigers.

For the iPhone, a lot of network tools have been developed on the iOS operating system, in particular, IP Scanner, Wi-Fi Analyzer, Inettools and others. The principle of their action on the iPhone is the same. Diagnosis of a Wi-Fi network is carried out in the same way as on Android, Mac OS and other systems.

Which channel is better to choose

First you need to understand which channel is not uploaded at present. It is he who needs to be chosen. How to understand that he is not busy? For a computer-use Insider, and for the phone-Wi-Fi Analyzer or Home Wi-Fi Alert. The indicated programs will indicate the total number of connected signals. On the eye you need to determine where the least connected points. This is the fastest methodology for choosing the best channel. The only thing is that many channels have intersections in the frequency range and are able to create additional interference.

note! Non.overeating channels are those that go under numbers 1, 6 or 11. The 12th and 13th channel should not be installed, since some devices do not detect them.

How to change and configure the frequency of a router

It is worth saying right away to change the range from 2.4 GHz to 5 GHz, you need the router technically supports this frequency and the corresponding Wi-Fi certificate, which we wrote more in the previous article.

In other words, if you have an old router model, here without options. iron will have to be changed.

Find out the frequency of the Wi-Fi router and change it if the device operates in two ranges, you can in the settings. You can go into the router settings either through the cable (usually it is attached to the device when buying), or by introducing the IP address in the address bar of the browser (for example, https: // or https: // The login and password by default is specified by the manufacturer and is indicated in the instructions or on the router itself.

All the necessary information is located in the section “Wireless Network” or “Wireless” (the type of integration, of course, depends on a particular manufacturer).

In any case, you can configure the channel, even if there is no way to change the range. In 2.4 GHz, it is best to choose stripes 1, 6 or 11, since they are non.overwhelming in accordance with the standards for providing a minimum of 25 MHz.

As for the frequency of 5 GHz, here the formation of channels occurs in four lanes. At a minimum, you will have channels 36, 40, 44 and 48-this is the UnII-1 unit, but depending on the device, they can be more, until the 161st.

It makes no sense to increase speed through the provider, connecting other Internet tariffs if you have old network equipment that does not support new Wi-Fi standards and frequency. With an increase in the number of users, the load on the wireless network has also increased, with the same progression the amount of interference in the range of 2.4 GHz is growing.

The frequency of 5 GHz for Wi-Fi routers is now more free and stable, has more non-overeating channels, which means that signals from neighboring devices are less likely to be superimposed on each other and do not divide the speed.

To increase the Wi-Fi signal and the Internet speed, you need to keep up to the time and purchase modern routers that meet the new requirements of the wireless network.

How to find out the real speed of Wi-Fi 5 GHz on a laptop

The real indicator is often different from the declared. It depends on the features of the equipment, the tariff plan.

Speed ​​measurement is carried out in two stages:

  • Check the meaning in the immediate vicinity of the router. To do this, you need to go to the SpeedTest website and look at the issued indicators, evaluate them.
  • Remove the laptop from the Wi-Fi transmitter and make similar measurements.

There should not be a significant difference between the indicators if the PC is in the room adjacent to the router. The standard has 802.11AC acceptable is the real speed of 50 MBT/°.

Frozen wireless

What else does not affect Wi-Fi connection

Regardless of the device used, the following factors negatively affect the data transmission mode:

find, wi-fi, channel, laptop, change
  • Microwave. We are talking about kitchen household appliances. For example, a microwave oven operates at a frequency of 2.45 GHz, like a number of routers. This circumstance will interfere with the operation of the router, lead to instability of the Internet distribution, lower the speed of its functioning. Therefore, you do not need to place Router in the kitchen next to the microwave.
  • Working Bluetooth. It is not recommended to use Bluetooth devices next to the Wi-Fi transmitter, turn on this technology on them. Bluetooth works in the same range with a router, which will lead to a conflict of these devices. Interference is formed that prevent the spread and normal functioning of a wireless connection.
  • Garland. New Year’s garlands negatively affect Wi-Fi work. Flashing devices emit an electromagnetic field that drowns the transmitter signal. Therefore, such elements should not be placed in close proximity to the router.
  • The firmware of the router. If, after buying the transmitter, the Internet began to work poorly, then it is recommended to reflash the device, t. e. Update its microprocortor. This can be done by downloading a special file from the Internet.
  • Router synchronization with a computer. If the router is connected to the PC, then it will provide it with the Internet, as well as distribute the network to other devices. In this case, the data transfer speed to gadgets will be lower.

note! The Wi-Fi work helps to update the driver’s update to the laptop network adapter.

find, wi-fi, channel, laptop, change

Reset settings of the router

Channel Wi-Fi channel on D-Link router

The selection of the Wi-Fi channel on the routers of the D-Link takes place in the “Wi-Fi-Basic Settings” menu section. You can get to the settings section at the same address as on TP-Link.

After switching the channel frequency parameters, you must click first on the “apply” button to act in effect. And then to the red button of the exclamation mark to switch to another page. All configurations are finally preserved on it.

We change the wireless signal channel in the Netis router

Netis router is also by default independently chooses which Wi-Fi channel is more preferable for working at the moment. But he does this not always adequately, so there is also manual setting. In order to change it to Netis, we go to the administrator panel and click on the Advanced button to get into extended settings.

Here we go to the menu in the section “Wireless mode 2.4G ”and open the link“ Wi-Fi Settings ”. Among the many points that we will definitely consider separately another time, we find two. “region” and “channel”. In the first of them, we will set “EU”, since in the USA (“US”) some channels are prohibited.