YouTube issues

Ok, I am sick and tired of this.

Almost on every other youtube video I get this message "Error trying again later" and even I try days later it doesn't work. Some videos will load up, THEN give me this error half way through. Now a new thing came by, a video will load , it plays fine, and half way the scroll bar on the video time line will jump to the end and thats it. No more video, if I reload it it will stop at exactly same point it stopped earlier on.

I used 3 different browsers(safari,firefox,chrome) same results. i used mp4/html5 and flash , same result. I uninstalled adblock AND flash block, same result. I don't know what the hell is wrong. I never had issues before. I always load videos in 360p no HD here.

Any one knows how to fix this!?

Running latest mac build, latest browser(S) releases, and latest flash player.