host cant hear participants

this is so frustrating - it used to be easy to get zoom help now it is the worst system I have ever tried to access.

i was just in a meeting where we could hear the host but the host could hear none of the participants even though

we were unmuted. She is elderly which is why i am trying to help her work out the issue.

is it something in her settings or any suggestions?

Many thanks,

Zangmo