Ok... I have a new iMac 27" and new Airport Extreme (802.11n WiFi). I own a 15 powerbook, and new PS3 Slim (with updated firmware 3.01). I'm able to connect wirelessly to the internet on my iMac and Powerbook. My PS3 can not find my wireless network. I have gone thru forum after forum and tried everything I can find. Still no luck.
Using Airport extreme base station 7.5
5 GHz / 2.4 GHz set to Automatic - 802.11 a/n - 802.11b/g/n (Channels are 149 and 1)
Wireless security WPA/WPA2
I tried adding the PS3 MAC address thru Access Control as stated in the quote above. Still doesn't find the network.
I tried just using 2.4 Ghz. Didn't work.
I tried scanning for the networking on my PS3. I also tried manual set up at stated in the PS3 troubleshooting forum.
My new Airport Extreme is approx. 30 ft away from my PS3. That shouldn't be an issue, because my old router was a G and it was able to connect from the same distance.
I'm out of ideas... Any help would be appreciated.