[Q] what does it take to start using Wi-Fi (wireless network)?

[a] to use the Internet on Wi-Fi, you can use it wirelessly as long as you have a router Internet connection line and a Wi-Fi router.

　When you connect smartphones, PC and tablets to the Internet through Wi-Fi, you need broadband line protocols for Internet connections such as "OCN light", "DoCoMo light" and "au light", as well as devices known as "Wi-Fi routers", "wireless LAN routers" and "access points".

　Typically, when you sign up with a provider and install a broadband line at home, you install a "broadband router" (sometimes referred to as a "broadband modem", "ONU", "optical phone compatible router", etc.). The broadband router usually has multiple ports to connect the network cable with the word "LAN" written on it. You can connect to the Wi-Fi router via a network cable and make the necessary settings to use Wi-Fi on PC, smartphones, and tablets.

　Wi-Fi routers have launched many products. Prices also vary greatly from cheap products under 5000 yen to products over 30, 000 yen.

　According to the price, the biggest is the communication speed. Expensive products support Wi-Fi 's latest standard "IEEE 802.11ax" (also known as "Wi-Fi 6") and can communicate at about 4.8Gbps. In addition, expensive products also have the characteristics of connecting multiple devices (PC, smartphones, tablets) to the Wi-Fi, while communicating at the same time difficult to slow down.

　In addition, current broadband routers also support Wi-Fi. Before buying a Wi-Fi router, check to see if the broadband router you are using at home is not supported.

スマホをWi-Fiに接続する方法は？　Wi-Fiがつながらない原因と解消法は？　Wi-Fiルーターの選び方は？　この連載では、これからWi-Fiを導入する人や、Wi-Fiを導入しているがトラブルを抱えている人に向けて「Wi-Fiの基本」や「トラブル解消のテクニック」をQ&A形式で解説していきます。

A list of Vasa's "Construction articles" reports that can solve the "problems of Wi-Fi"