Disabling an SSID

Hello, can someone please help me on how can I disable a specific SSID for some days from Mikrotik.

Unplug the power source.

I just want to disable one network and leave the others on...

Don’t you realize you haven’t explained anything?
You have not provided any details, what answer do you expect?
We needed a suitable one, and I gave it to you.

You gotta give him cryptic answers...

"Scheduler"

Bock, if you only have the one WiFi network, you can disable the respective wireless interface. If you have multiple wireless interfaces, one per each wireless network, disable the one that hosts the SSID you mean. If you have some other setup that is not typical, you should mention how you set it up, only then we can suggest how to disable those SSIDs. Normally though you have one SSID per physical wireless card.