I am having Dell Studio 15z (1569) from past couple of days. I have noticed losing of the wireless connection which is indicating that wireless radio was off. It did not seems to turn on by using the Function Key. I need to restart the system so that I can establish the connection again. So Let me know why the above mentioned issue is happening into the situation of mine. I am waiting for the prompt replies of yours on this particular matter. thanks a lot in advance.