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? How to Increase Internet Speed People can't get in the room. What can I do? I Failed the Network System Check Comments 0 comments Article is closed for comments.