YouTube Suddenly Loads Slowly In IE11 & FF but not Chrome?

Starting this week, on my 2 desktop hardwired computers, YouTube videos are now loading slowly using both IE 11 & FireFox. I downloaded Google Chrome (owner of YouTube) and they load quickly (as they did previously on IE 11 & Firefox). All other web sites still load and play videos quickly in all 3 browsers. Only YouTube affected in non-Google Browsers.

The only things that changed are:
1. I updated Windows 7 with last week's updates,
2. This week Google changed something in its search results to favor mobile app-efficient webpages.

I cannot figure out what's going on. Sometimes when I click on a YouTube video in a non Chrome browser it says" error; try again in 30 minutes". Anyone else having this issue starting this week?

SGT Oddball said:

Try switching youtube to html5 player mode if you are not already and see if that improves things.

https://www.youtube.com/html5

I don't see any place in YouTube to make the change. If I click on the link you included it says "default player in use" and has a place to click to "request HTML5 player".
1. Does this change You Tube options only or the entire browser's handling of all videos? (What am I changing exactly)?
2. If I did this, do I also have to do it in both IE11 and FF?
3. Also how can I undo such a change?
4. Why would this just start this week on 2 separate computers that were working fine on YouTube last week with non-Chrome browsers?

Thanks

If you click request html5 player, it will use the html5 plater rather than flash on youtube when it can, to switch back just click the button again.

z3r010 said:

If you click request html5 player, it will use the html5 plater rather than flash on youtube when it can, to switch back just click the button again.

Does the change affect only the YouTube site , or will it affect other sites? And, do I have to make the change in both IE11 & Firefox or is the change stored globally elsewhere on the computer?

Thanks

ThrashZone said:

Hi,
You'd have to request html5 for each browser and using each browser,
It's pretty much just for youtube which makes it a so-so thing to do I'd try to narrow which sites you use and test them without flash installed to see if they need or don't need flash
Then at least you'll know more about the sites needs.

In ie without flash installed you might need to use the F5 key to refresh the page before the video displays otherwise it works perfectly well without flash at all.
Cheers.

Thanks for the info. Strangely enough, today when I turned on both computers, each was back to normal and quickly loaded YouTube videos using java default. I can't figure out what was going on yesterday unless it involved my Internet Provider or the YouTube site itself. My IP seemed fine however for all other sites, with a tested download speed of 125meg and upload of 12 meg.

Thanks everyone for your responses....