The quality of the internet signal at the venue is critical to the success of your event streaming. You can't control the signal quality of the participants, but you can maintain the signal quality of the venue, so it is best to pay attention to this step.
You should be able to test the internet signal properly before the online event. To do this, you can use an online tool like SpeedTest. Remember that you will need at least 6 Mbps for a live streaming event.
If the internet speed is not enough, you can opt for other solutions like 4G routers or dual connectivity. However, a delay of 30 to 45 seconds is possible because of the simulcast. This is the standard latency time, so don't worry.
One extra tip, remember to retest the signal quality on the day of the event.