It started a week ago. I have my Macbook Pro for more than 2 years and the wireless connection was super. The router ( netgear wcr614v9) is in the next room and it has been there since the very begininnig. I am using WPA2 personal security. About a week ago the wireless connection become very slow and painfull , then it would drop off. I can see the airport searching for available wireless networks, sometimes it would pick it up, sometimes not. As soon as I move the laptop in the room where the router is it becomes as before - fast and no problems. My ipad2 and my iphone4 have no problems with the wireless network connection at all!!! It is only the MBP. Advanced network setting in the system preferences panel looks OK. Do you guys have some ideas what would be the reason for this?
thank you all so very much. I have checked in system profiler the networks in the neighbourhood and even though none of them was matching the chanel of my router I have change it from 09 to Auto. And it did the job. Now everything is back to normal. Once again many thanks!!!