YouTube HTML5 Videos won’t play in Internet Explorer 11 – FIXED!

I am the CIO for a mid-size company that has around 1000 computers running Windows 7 and Windows 10.

As of this writing, we use Internet Explorer 11 for everything. This is for multiple reasons. 1) We are required to deal with the state and federal agencies a lot. They still have many outdated systems that only work with IE. 2) I don’t want to add the burden of supporting multiple browsers. We are considering moving to Chrome with their Chrome for Business. They have a full suite of GPO controls that will give us the same level of control that we have over IE. But, that hasn’t happened yet.

We’ve had a constant problem with YouTube HTML5 videos playing in Internet Explorer. The pages loads, all of the video thumbnails load, but the player just shows the spinning wheel of death. We tried to ignore it for a while, but it has become a much bigger problem, so I decided to dig in.

I’ve spent hours troubleshooting how to get HTML5 video playing within Internet Explorer 11 under windows 7 and windows 10. With all the searching on google, there was no clear answer.

Here’s a description of our setup.

  • All computers are running Windows 7 Pro or Windows 10 Pro
  • All computers are members of a Windows domain
  • All computers are behind an ASA firewall
  • All users have unrestricted access to
  • System settings are managed by Group Policy Objects (GPO)

We could make it work by doing the following steps:

  1. Open IE
  2. Open Internet Options
  3. Click on Advanced Tab
  4. Click on Reset…
  5. Click on Reset again.

These steps set the browser back to defaults and it would work. But as soon as GPO updates or you do a GPUPDATE /FORCE it would not work again.

Thinking it was related to the GPO settings, I did all the typical troubleshooting steps and followed many pieces of advice from all over the internet, but I couldn’t get it to work. I inspected every detail of the security settings in our trusted sites and I checked the settings under the advanced tab of IE. I did comparisons before & after GPO on multiple computers. Any setting that I changed made no difference.

So, then I turned to the inspector within IE and watched the traffic. It took me a while, but I noticed that the HTML5 videos were attempting to stream from That link redirects to

So, as a test, I added the and sites to our trusted sites list.

That fixed it. After all the hours I spent, the site needed to be trusted.

After a day, all systems have received the GPO updates and the new trusted sites list. Everyone that I’ve checked with can now see HTML5 videos on youtube.

I hope this helps someone out there that is struggling with the same issue.

inFact: 5 Ways to Tell Science from Pseudoscience – YouTube

FANTASTIC! This is one of those things that frustrates me so. It’s the same people that tell you, “Well, that’s only a theory”. Which shows they don’t have a clue what a scientific theory is…

inFact: 5 Ways to Tell Science from Pseudoscience – YouTube. – This is COOL!!!

This is SO COOL!!!

Straight from the site:

Enterprise d reconstruction project

New Starship Enterprise Bridge Restoration is nonprofit foundation created to completely restore one of the Paramount created Enterprise-D Bridge sets from Star Trek: The Next Generation, so it can be displayed to the public and turned into an Interactive Museum attraction.
The ORIGINAL TV Set was destroyed for the film Star Trek: Generations, and this duplicate set was created in 1997 by Paramount, under the supervision of Herman Zimmerman and Michael Okuda.
A group of the original Star Trek designers, artists, cast and crew including Ronald D. Moore, Naren Shankar, Doug Drexler, Andrew Probert, Herman Zimmerman, Rick Sternbach, David Gerrold, Brent Spiner and Larry Nemecek,are helping us update our set to the 21st Century technology with WORKING INTERACTIVE Touch Screen LCARS COMPUTERS. It will be the equivalent of the world’s largest, totally interactive educational video game.
By 2014, it will be opened to the public for Weddings, Meetings, Movie Showings, Fund Raising, Tours, Fan Films and more. Our Kickstarter and Indiegogo raised over $84,000, every dime of which goes directly into the restoration.
The Foundation is in the process of applying for federal and California State tax exempt status. All donations made to the Foundation prior to receiving the requested federal and State determination letters should be deductible by the donor, provided that tax-exempt status is eventually attained. Please contact the Foundation for further information to determine whether your donation will be deductible for tax purposes.

Here’s a few videos explaining the idea.