gaumet:
i have exactly the same trouble win my yun
Exactly what trouble? There are several different problems being mentioned in this thread, and they all have different reasons.
What exactly are you trying to do, how exactly are you trying to do it, and what error messages are you seeing? What have you done already to try and resolve it? What was the last thing you gad done that worked, and the first thing that didn't?
"It doesn't work" is far to vague to give an meaningful help.