youtube sign in error 2

https://atomic-wiki.win/index.php/How_to_Fix_the_YouTube_Sign_In_Error_That_Is_Blocking_Access_for_Many_Users

I kept getting that annoying 'sign in error' on YouTube yesterday when trying to log into my account. It seemed like it didn't recognize my password even though it was correct. I had to clear my browser cache and try again before it finally worked. Maybe it was a temporary glitch on their end.