Guests can't hear you
Make sure you tapped Broadcast and see the live indicator. Ask guests to turn up their volume, turn off silent mode and tap play if their browser asks.
Microphone blocked
Allow microphone access when your browser asks. If you said no before, open your browser's site settings for crowdspeaker.live, allow the microphone, then reload.
Connection dropped
Move to a stronger signal or Wi-Fi and keep the page open on screen. Guests reconnect automatically when your broadcast comes back.