Public Network

Hi guys,i have a weird question but i really want to make sure it made me paranoid.I want to ask you what happens if i have my laptop on guest public network and not on private.i have wpa2 secured wifi hard pass in my home.when it was on public the wifi was disconnecting many times.After i set it to private everything became better and no more connection interruptions.so i want to ask you was it because it was connected as a guest network or its just a normal coincidence.and is it possible that someone idk connected or hacked my laptop or my network lets say just because my laptop had public network?pls answer as soon as possible.