Typical house with a basement, there are about 4-5 renters.
There is a Cat6 line going from my main router to downstairs, which is then connected to a signal booster to give them all wifi.
I'd like to keep the renters completely seperated from my main house home network.
How do I seperate the signal booster/renters from seeing any devices on my main house router?
Should I connect a switch or router in between my main router and the signal booster?