If you’re using the Opera web-browser and experiencing issues with neither sound nor video being broadcasted from the presenter, there could be a couple of reasons why. One common issue is that Opera may be blocking WebRTC technology. Another possibility is that a VPN is enabled in the Opera browser, which can also block the technology for transmitting sound and video.
To resolve these issues, try enabling the “Use any suitable network interface” option in the browser’s Settings » Advanced » WebRTC section. You can also learn more about how to use WebRTC technology
. If you’re still experiencing issues, please contact our technical support team for assistance.