waiting room

I teach a distance from my computer and want guests to enter the meeting without having to be put in a waiting room.   It is more convenient for me if they enter without me having to be interrupted to let them in.   I usually just start a meeting with the ID I've been given and they enter that ID and password which I gave them in advance.  I've disabled the waiting room and done everything I can to disable the waiting room, followed google instructions and yet it is still not disabled.  Does anyone have any suggestions?  Thank you.