I'm having this problem too, we've tried resetting/reconnecting/refreshing the browser and nothing seems to work for long. The players will connect, and 2 can hear each other and the 4th and 5th, but the 4th and 5th can't hear each other. So communication is a relay with 4 saying something and 3 repeating so 5 can hear, 5 answers and 3 repeats for 4. But who is dropping out shifts at random. After a full refresh, we can all hear each other, but within 5 or 10 minutes somebody drops out again. After nearly an hour of constant resetting we gave up and switched to Microsoft Teams, but it would be great if this could get fixed.