Problem viewing On-Demand Webinars

Hi,

I'm trying to view some recorded webinars and all of them start buffering after a couple of minutes, like this one: https://training.articulate.com/webinars/how-to-build-drag-and-drop-interactions-in-storyline-360.

I tried on Chrome, Edge and IE and they all do the same. I changed my internet access and still does the same.

Anything you can do to help?