My son is discovering the internet. Sometimes, without me. I want to control a little bit the content in order to avoid unpleasant surprises. This is why I need to deactivate the WiFi from the modem when I am not at home.
Could you please tell me how to do it, without deactivating the internet?
You can use parental control if you like.
Parental control allows you to define schedules and rules per device (identified by its MAC address).
A schedule defines both days of the week and a time window per day
You start by logging on to the modem: enter 192.168.0.1 in a web browser. The admin password is on the label at the bottom of the modem. You can set the language to EN above
Go to Parental control and Time control.
You'll have to take it from there.