Host audio drops during presentation

When joining the room I received an initial pop-up that I need to allow the media and after accepting this I can hear the host fine. The the audio from the host drops out, the only way to restore the audio is to leave and reenter the room. during a session with 4 people (host + 3), 2 of us had to leave the session (90min) 8 times due to a fault, which was occurring at the same time for both of us.
I was connected to the room on Mac in Safari,  I had tried to use the desktop app but the room would not transfer to the app.