I can't see the presenter's video Support September 04, 2018 19:41 Updated Follow Make sure your internet speed is passing the minimum requirements: https://www.bigmarker.com/system_check Refresh the page. If neither of the above works, a firewall is usually the primary cause. Please visit our section on Firewalls for more details. Related articles I have no sound and can't hear the presenters It says video is loading, but it never loads. What is happening? I Failed the Network System Check How to Increase Internet Speed People can't get in the room. What can I do? Comments 0 comments Article is closed for comments.