Howdy I'm getting really frustrated here, setting up a 802.11n 5GHz connection to my AEBS from Leopard. It worked fine previously, until I was prompted with a new update for the AEBS, and I installed it. I reset the whole AE after a while, and these are my settings now. - Wireless in 802.11n 5GHz mode with a WPA2 Personal password. In Leopard I see the network, and when I connect, it asks for a password. I'm sure I enter the correct password, although it says it's invalid. If I make the connection manually in Network Preferences, same thing. Here's the strange thing. When I connect my cable, get back into the Airport Utility and change 5GHz back to 2.4GHz, leaving the WPA2 Personal password the same, it works! As soon as I set it back to 5GHz, the password is apparently invalid. I can't wrap my head around this. I've been at this for 3 hours now, and it just won't work. Any ideas or tips are much appreciated! Edit: I'm sure the 5GHz thingy works with my MacBook. When I remove the password completely, and set it to 802.11n 5GHz, it connects perfectly. As soon as I enter a password, Leopard says it's invalid. Aah!