When I start my meeting and send an invitation link to my participant, my participant gets the screen message "waiting for the host to start the meeting", but I didn't receive any joining requests to accept them and let them join the meeting. I cannot let them in: Zoom doesn't see anyone there for me to let in. I even tried the option to leave the meeting, and to click on the link in the email message, but to no avail.

I enabled the waiting room from the security list in the zone meeting.
How can we solve this problem?

I have just created a personal zoom account and participants cannot join when i send invitation to others they cannot join the meeting I don't receive any participant joining request and for the participants it doesn't give any message just the meeting screen and "connecting" message what is the problem and how to solve it?

We are an online school. We would like to add an admin who would be host and she would make the teachers co-host. we would also like to grant her permission to be able to open 3 classes (3 different meetings) at the same time with one device. please guide us how can we do this