None of the unity learn videos are loading

So none of the videos on the unity learn pages seem to work for me. They just keep buffering forever and never starts up. I can download the video using IDM and it works fine after that but not on the browser.

I have tried googling and figuring out a solution for the past 3 days without success and I am at my wits end now. I have tried everything from clearing cache/cookies, different browser, restarting pc/router.

It works when I open it on my phone on the same wifi, so its not an isp issue. Anyway, kinda just gave up and bought a course on udemy. Just wanted to log this issue so the unity peoples are aware.

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!

Hey, so we’re in October now and it appears that this issue is still ongoing. I seem to have found some kind of workaround, here are the steps I took:

  1. I have uBlock Origin so I made sure to allow the entire Unity.learn domain fully through. I also use the LibreWolf browser, if it matters.
  2. Whenever I start a new tutorial page and the first video doesn’t want to load past its first 10 seconds, I right-click the video and download it with Save As. I don’t plan on keeping it, but it seems to “trigger” the connection so it keeps loading the videos.
  3. I wait 5-10 minutes (get a coffee, hit the bathroom, whatever) then I come back to see that all the videos on the entire page are fully (or almost) buffered and ready to play without issues! It seems that they all load at the same time, which would explain why the first video always appear to load so slowly!

Whenever the videos don’t want to cooperate at all, I close my web browser, clear its cache and history, then log back into Unity Learn, but I rarely have to do that.

It’s not a perfect solution but it does work for me, so I wanted to share in case it would help anyone else, hopefully!

Edit: Later on the same day I had trouble loading the videos but only for one specific page, so don’t get your hopes up too much eh!

Also, if the media plays for a split second then crashes (not just starts buffering) if you are quick enough during playback you can right click and Save As, the download actually works! Watch, then delete.

Hello,

As of december, this issue is still ongoing, it is the same with uBlock origins. I have firefox and the only reliable way is a workaround: uninstall the extension or use a dedicated firefox profile only for unity (for Firefox, create a new one in page “about:profiles”.

I tried multiple suggestion found on the web such as allowing cross-origin permissions (only for unity) but this is a security risk nonetheless and not reliable either. At some point, using only 1 tab for unity learning seem to work but not for long. I also tried to whitelist learn.unity.com, the links of the google web resources where are stored the videos but it still doesn’t work reliably.

Is there somewhere to report that kind of issue not related to unity but specifically with the unity learning videos?

I hope some devs will see this post in order to find a fix.