The unity Learn video cannot be played, and the message “The media could not be loaded, either because the server or network failed or because the format is not supported.”
I was struggling with the same issue and found a workaround.
The root cause is that AdGuard mistakenly blocks API requests, thinking they are ads or tracking attempts. Once blocked, the issue persists even after disabling AdGuard.
A simple solution is to install a browser extension that allows CORS requests. Just search for “Access-Control-Allow-Origin” in your browser’s extension store, install it, and enable it. This should allow the video to play again. After that, you can disable the extension.
However, if you re-enable AdGuard, the same problem will occur again.
This text was translated by ChatGPT.
Hope this helps!