If you encounter an error when attempting to watch a video labeled MEDIA_ERR_UNKNOWN, the issue is typically caused by a VPN or firewall restriction.
If you are using a VPN client to connect to your organization’s network, disable the VPN and try watching the video again. If the error persists after disabling the VPN, try switching to a different web browser (for example, Chrome or Firefox).
If you are not using a VPN and are connecting directly from your organization’s network, the streaming service may be blocked by your organization’s firewall. In this case, please contact your IT department for assistance. Our technical requirements for streaming video can be found here.