An error occurred, please try again later, YouTube?

Some videos on Youtube are not working for me. It keeps saying "An error occurred, please try again later"? What the hell? it only does this on some videos, not all. What is causing this? How can I fix this? it's really starting to make me mad. I have windows 7 and I use google chrome.
Please help me!
Update: There's nothing wrong with my wifi
6 answers 6