Youtube videos won't play

Hello,


up until yesterday i watched youtube videos with no problems. now all i get is " an error occurred. please try again later". I have downloaded the latest adobe flash player, enabled javascript], cleared my history/ cache/ temporary internet files, etc. I even downloaded firefox and it still wouldnt work. I also added an S to http: when typing the address, NOTHING WORKS!!!

I need a real solution please, can anyone help??