wargamedt

I don't know what happened. One day I went home and both my pc and ps3 didn't have internet. So what I did was I reinstalled the bluwin cd (bluwin is my isp) and it worked(on my pc). I had the ps3 on the internet for about 30 mins then after that I have been trying for days to get it hooked up to the internet. I called my isp and they said I need a wireless key and also I need to open up the port that the ps3 uses(never needed to do that before). First off the wireless was working before without a key and second how do you know which port your ps3 is using. I know how to open up ports on my router which is a netopia 3347nwg, but I don't know which port or if opening a port is even necessary. I've tried using different internet cables but my router still doesn't recognize my ps3 and vice versa. There is also a message that says error 80010201 and it doesn't even recognize my ethernet cable. Please tell me what to do or give me advice or settings to change

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