Your lucky - after installing Windows 10 my Slingplayer program is always out of sync. Version 188.8.131.521
Just loaded the truly horrible latest version onto my netbook which sorted the problem for me. Why Slingmedia think it is accceptable to plaster bloody adverts everywhere ( which I can't seem to close with the "x" in the top right corner ) is beyond me !
They really are going from bad to worse in my opinion. Would always have recommended Sling products - NOT NOW !