Ok, I'll try to explain this. ALL other pc's/devices are on the MAIN router. Because as we know, wifi works great as long as pc/devices are on same floor. When it has to go thru one floor & multiple walls with potential metal in the way, that is/can be a problem which is why the landlord installed this 2nd one. It is a secured connection & nobody else has the SSID/password but me.
I could just as easily remove the label on it or use a black felt tip permanent marker so it cannot be seen. Is that ok?