I have had the problem of trying to watch a Live stream Player, (the little circle just kept spinning), I looked all over Google and got a lot of answers, but nothing worked. Most of the answers were to make sure you had the latest Adobe Flash Player, did everything that was suggested, nothing worked.
I played around with one site off and on for almost 2 weeks, and this is what I had to do to make things work correctly.
Open the site you are trying to open, right click the Live Stream picture, and click on "Global Settings", then open the advanced tab, under "Browsing data and settings", click "Delete all" and follow through with what is says.. See attachment...
Now everything is working fine.
Hope this helps others..