If you don't know anything about networks and routers and your technician has configured the device, it's better not to touch anything, leave everything as it is and connect to the Internet normally. But if you want to improve the WiFi in your home and get the most out of it, and you feel capable of doing so (it's not difficult), there are reasons why it's a good idea to have several WiFi networks in the same home, each with a function or reason.
“Many years ago I used a single WiFi network at home for everything, since guests did not usually ask to connect to the wireless network, however, with the popularization of home automation devices this has changed, and now I have a total of three networks WiFi for different uses", explains Sergio de Luz in Redes Zone. So that? We explain it to you.
Generally, having a WiFi network is enough if you make normal or basic use of it. But most current routers allow us to create several different networks, whether you have bought it yourself or if it is a device that the operator has installed for you. This allows us to divide according to the type of device or according to use...
Your main network
The first would be a main network that allows us to work, generally, in two bands. And most routers are smart and automatically switch between the 2.4 GHz band and the 5 GHz band as needed. We will have a single WiFi network in both bands thanks to the fact that the router itself connects us as necessary. But we can also choose to separate the bands with different SSIDs to know which one to connect to manually and not let the router choose. So we can connect whenever we want to the 5 GHz network to have more speed, for example, even if we are further away and have less range.
In any case, this will be our main network and the one that we will use in most of the devices from which we connect. I mean, your laptop, your phone...