Is the net late?!Is communication unstable?!If you try five methods, you can easily speed up Wi-Fi!

Explains the Internet mechanism and specific methods to speed up Wi-Fi

(2020/09/23 update)

Nowadays, the expansion of remote work has been expanding due to the influence of the new colon virus.In remote work, the communication speed of the Internet greatly affects productivity, but many people may be dissatisfied with the unstable and speed of the Internet connection.

In this article, we will explain what to do to speed up Wi-Fi in a concrete and easy-to-understand manner.The Wi-Fi mechanism and the appropriate countermeasures are the same not only in the size of the company but also in ordinary households, so if you are worried about the speed of the Internet, please take a look.

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Contents of this article

Points of speedening using the type and characteristics of Wi-Fi

5 ways to speed up Wi-Fi that you want to try now

Fast-speed and optimizes Wi-Fi to increase productivity

Checkpoints for internet mechanisms and communication status improvement

First, I will briefly explain the Internet mechanism so that it makes it easier to imagine communication improvement.

The section shown in the arrow in the figure is the part where "communication" is performed.We will improve this section, but we will briefly introduce what we need in improvement.

エンドポイント – ルータ 間

It is within the range that Internet users can actually see and touch.Therefore, communication is often reviewed in this section.By performing "replacement of equipment", "adjusting the usage environment", and "examination of how to use", the communication status can be expected to be improved.

In particular, if the Wi-Fi radio waves are weak, there are many problems in this section.

ルータ － インターネット間

In the section from router to the Internet, we will consider "change of ISP ( * 1)", "change of telecommunications ( * 2)" and "change of use service" that provides online lines.It costs money, but the effect of the change is great.It is desirable for people with knowledge to do it because the incorrect use service can be adversely affected.

If the Wi-Fi radio waves are strong but the actual Internet connection is slow, there is a problem in this section.

( * 1) ISP: Abbreviation for Internet service providers.OCN, So-Net, etc. ( * 2) Communication companies: are also called line companies.NTT East, SoftBank, au, etc.

インターネット － 目的サービス 間

Because there is an opponent in communication, the situation may improve the situation by improving the communication environment of the other party.Basically, you can't do it yourself, but sometimes the situation is dramatically improved.

Wi-Fiが遅いと感じたときはスピードテストによる原因究明

Since the speed of the Internet connection is determined by various factors, there are always some fluctuations.The perceived speed does not necessarily reflect the correct speed, so be sure to use a "speed test" if you want to measure the communication speed.If you search for "Internet Speed Test", many services will be displayed.

In the speed test, it is designed to make it easier to compare the communication speed by defining the file size and measurement method to be sent and received.Since the measurement method differs depending on the service, if you want to compare the speed, determine the time zone and use service as much as possible and perform the measurement.There is also a service that introduces the average speed and information for each area of the user using the same service, making it convenient to consider the communication environment.

Points of speedening using the type and characteristics of Wi-Fi

Wi-Fi (sometimes called wireless LAN), which can use many devices regardless of location, is very convenient for both a network at home and the network in the company, and has become the mainstream for wired connections with LAN cables.increase.Wi-Fi radio waves are transmitted and received between the access point ( *) connected to the router or the router, and each device such as a personal computer or smartphone.

Although it is expressed in a word "Wi-Fi", there are types of flying radio waves, which often affect the communication speed, so it is necessary to understand the nature.。Let's check the particularly important type and characteristics of Wi-Fi.

( *) Access point: A device that transmits and receives radio waves instead of routers without Wi-Fi function.

Wi-Fiの種類で違う通信速度と周波数の特性

The standard specified for Wi-Fi communication is IEEE802.11.In IEEE802.11, various English letters are attached to the end depending on the type of standard.The rough feature is as shown in the figure.

通信規格	通信速度（最大）	周波数帯
IEEE802.11a	11Mbps	5GHz帯
IEEE802.11b	54Mbps	2.4GHz帯
IEEE802.11g	54Mbps	2.4GHz帯
IEEE802.11n	300Mbps	2.4GHz/5GHz帯
IEEE802.11ac	6.9Gbps	5GHz帯
IEEE802.11ax	9.6Gbps	2.4GHz/5GHz帯

* 1Gbps = 1000Mbps

The routers used in homes and companies correspond to one of these communication standards."Communication speed" is an easy-to-understand concept, but the "frequency band" is also important when considering Wi-Fi.The features of each frequency band are as follows.

周波数帯	特徴
2.4GHz帯	障害物に強いため、屋内・屋外を問わず無線通信がしやすい。電子レンジやBluetooth、ドローンなども同じ周波数帯の電波を使用している。
5GHz帯	障害物に弱いが、同じ周波数帯を使う機器がないため干渉が少なく、通信が安定しやすい。

You can immediately see which standards are available in the router you are using by searching by the model name of the router.The following is a brief introduction to each standard.

IEEE802.11a、b、g

IEEE802.11a/B/G is a standard that has been active since Wi-Fi appeared.A is used for short -distance high -speed communication, B is used for medium to long -distance communication, and evolved G is a standard that has taken a good thing about A and B.In general communication equipment, although it supports standards, it is rarely used because it has higher performance standards.

IEEE802.11n

IEEE802.11N is a commonly used standard.The communication distance is long, and the communication speed is much higher than before.Another major feature is that it has two frequency bands, making it easier to set a network according to the usage environment.Currently, many free Wi-Fi provided by cafes, restaurants, public facilities, etc. use this standard.

IEEE802.11ac

IEEE802.11ac is a relatively new standard.It is characterized by being able to achieve overwhelming communication speed than the mainstream IEEE802.11N, and using radio waves in the 5GHz band with less interference.Although it is high -speed and has a sense of stability, the cost of compatible devices may still be high, and end -point equipment such as old PCs, smartphones, and printers may not support communication standards.

IEEE802.11ax

IEEE802.11AX is the latest standard at the moment (September 2020), enabling even higher -speed communication than IEEE802.11ac.In addition, you can build a network that matches the environment with two types of radio waves.At the moment, there are few compatible devices and the cost of equipment is high.

5 ways to speed up Wi-Fi that you want to try now

Improvement of Wi-Fi communication speed can be done in various ways.It is important to take measures while thinking carefully about when the delay is occurring.Here are five methods you want to try to improve the communication speed of Wi-Fi.

1.ルータの買い換え

First, the easiest and most effective method is to buy a router (or access point).Routers that only support old standards will make you feel too late because no matter how fast you have an Internet line, it will take time to send and receive data up to the router.

Router functions are diverse, such as checking connection devices, Internet connections, and security, and old routers with low processing capabilities may take some time to process without any problems with standards and speeds.

In companies, it is often better to use a high -performance router (sometimes called a switch) instead of a general home router.

If you are using an old computer or smartphone, it only supports the old Wi-Fi standard and may not be able to bring out the performance of the Internet or router.

2.ルータ、アクセスポイントの設置位置の変更

The location of routers and access equipment is very important.Each standard has a theoretical communication distance, but in principle, "the closer the radio waves are, the stronger."If the radio wave is weak, the communication will be slow and unstable, which will be a stressful environment for workers.It is okay for users to move, but it is important to think about the easy -to -use position.If you feel "slow", first move the installation location.

When connecting to Wi-Fi using radio waves in the 5GHz band, you need to pay attention to obstacles.The walls and windows of the room may become obstacles, and the radio waves will weaken when the area around the installation location is filled with objects.Be careful of places with many people and things, such as commercial facilities and event venues.

The 2.4GHz band is a frequency band used in microwave ovens and Bluetooth.As a result, radio waves transmitted from various devices collide and interfere with each other, resulting in weak radio waves.In the Wi-Fi of the restaurant, the communication may be unstable if the person in the store uses a microwave oven.At home, it is important to install routers and access points as far away from the kitchen as possible.When using devices such as wireless earphones, mouse, and keyboards, Wi-Fi is a bit stable for communication using radio waves in the 5GHz band.

3.無線接続機器を少なくする

Currently, there are so many devices that can connect to wirelessly.Not only personal computers, but also printers, home appliances, smartphones, tablets, game consoles, etc. are connected to the network through Wi-Fi.Routers are busy for connection requests from many devices, establishing communication, and information exchange.

Routers, which are the basis of the network, do a lot of work, so it is important to reduce the burden.For wired devices, the communication is stable at a high speed if you use a wired connection.Since the standard of LAN cables has changed as the Internet is at high speed, it is safer to avoid using it because there is an old cable.

Also, be sure to set a Wi-Fi password to reduce the connection from unrelated devices.It is essential, especially when the office is in a BYOD environment (an environment where you can bring in personal devices).Even if you want to prepare an open Wi-Fi for customers at stores, etc., it is more secure to separate the network for employees, and the performance is stable.

4.チャネルの変更

If you can change the router settings yourself, consider changing the channel (channel).

In communication, Wi-Fi radio waves are divided into a range called channel.The 2.4GHz band can use 13 and 19 channels in the 5GHz band, but there are not many channels that can actually be used because each channel may be used.If there are many channels used in communication, radio wave interference may occur and communication may be delayed or unstable.

If the router channel used at home or company remains the initial setting, the same channel will be used if the same species is nearby, making it easier to interfere.Changing the channel from the initial settings may reduce radio interference and improve communication status.You can get a lot of information by searching with keywords such as "Wi-Fi channel (used equipment name)".

5.インターネット回線の変更

In many cases, changing the Internet line can be greatly improved while it takes time and cost.The strength of the radio waves displayed on devices such as a personal computer is the strength of the radio waves from routers and access points, not the connection speed of the Internet.Therefore, if the radio wave is strong but slow, it is a problem of the Internet line behind it.I can't always say which vendor is good, but we will examine improvements with policies such as "changing services that have been used for a long time", "changing apartment type lines", and "avoiding popular mobile Wi-Fi routers".We recommend that you do.

長く使っているサービスは変更する

In many cases, the content of Internet lines and ISPs that have been used for a long time has not changed since the contract.The Internet optical line was 100-300Mbps 10 to 15 years ago.Currently, 1Gbps (= 1000Mbps) or more is the mainstream, but it may continue to use low -speed lines and low -speed ISP rental routers with old contracts.It is important to review your contract regularly and get closer to the latest Internet environment.

マンションタイプの回線は変更する

Internet services of "condominium type" such as apartment houses and set offices are likely to be unstable due to their nature.This is because the Internet can be used at low cost by subscribing to the Internet service for each building, not for each user, and assigned to each room inside.The same is true for rental properties that the Internet can be used from the beginning.

In this case, the more people use the Internet, the lower their performance because one line is shared.To distinguish, focus on communication performance by time zone.It is easy to make a pattern from the rhythm of users, and in apartments, it is often unstable during the daytime when the residents return home, and in a group office.If the performance is so bad that you feel uncomfortable, we recommend that you sign up for the Internet individually, even if it costs money.

人気の高いモバイルWi-Fiルータ（設置型を含む）を避ける

Like a mobile phone, the transmission and receiving and receiving and receiving radio waves and radio waves are performed, but if radio waves are concentrated on the base station, the performance will decrease significantly.Also, be aware that the widespread mobile Wi-Fi router is the same frequency band and used channel used, and radio interference is likely to occur.When checking a network that can be connected on a personal computer or smartphone, it is expected that if there are SSIDs with similar names, there are many "the same equipment nearby" and "there are many initial setting devices".If you overlap with your own devices, consider changing your mobile Wi-Fi router.

Fast-speed and optimizes Wi-Fi to increase productivity

Wi-Fi is now indispensable to our lives and work, such as using the Internet and emails, but also the use of various services for business, video conferences, and home appliances.There is no doubt that the communication speed and stability will greatly affect your life and work satisfaction.

Since Wi-Fi performance fluctuates for various reasons, it is important to regularly review and optimize the Internet environment and communication equipment.

Wi-Fi review may require IT knowledge, but in many cases it can be easily done without knowledge.Investing a little time and money may greatly improve productivity, so I hope you can try the method introduced this time.

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