How to disable Internet access for a specific device?

Question

Iron

There is a regular home network modem, a router and a device connected via a wire to the router. How can
I disable Internet access for this device at a certain time? Thanks in advance

Answer 1

It was easier to decide. If you delve into the settings of the router there is an Access Control tab and you can click on the device and block access.

Answer 2

this device has a MAC address and an IP address, you can cut it off in the router, like - google I think it will even show in the pictures

Answer 3

What's a modem? And where does the router, if the device is connected to the modem?
And then you have a question from the category "Help fix the red car. I start it, but it does not go."

Answer 4

Enable MAC address filtering in your router