I got my 13" Aluminum Macbook early 2009 and it's been working fine since I got it, It gets used lots and is taken regularly to uni. Recently, we started getting problems with the internet at our flat, it would work fine and then randomly and sporadically the internet just wouldn't work, sometimes just turning the wireless modem on and off would work and sometimes we would call our provider, they have said there is nothing wrong with our connection and the modem seems fine and it must be my computer. We managed to get it working fine on the ethernet cable and it doesn't drop the connection then, but now I can connect to the wireless modem but there is no internet. It says its connected but there's no IP address. We tried settign it manually but it still doesn't work. Does anyone know how to solve this problem?