I can't view course videos / videos show 404

If you can't view course videos, we've got a few steps to help you troubleshoot. First, check if you can view videos on other platforms like YouTube. This will help determine if the issue is with our site or a broader problem with video playback on your device.

Nord VPN

If you're seeing the message "iframe.mediadelivery.net unexpectedly closed the connection", this appears to be an issue for users who are using NordVPN. Disable the "NordVPN Web Protection" that may be silently running in the background and this should fix the problem.

Browser Extensions

Then, disable any browser plugins or extensions that might be causing conflicts. Some plugins can block video content or cause it to load incorrectly.

Additional Help

If you’ve tried all these steps and are still having trouble, email us at [email protected] with the course name and lecture number. We'll get it sorted for you as quickly as possible, so you can get back to learning without any interruptions.

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