I'm having issues getting my new XBOX 360 Slim to connect to my dual-band Airport Extreme when using wireless n. I can get it to connect with n but my connection speed on the 360 drops to 1 or 2 mbps, even though the signal remains strong. I can see the speed drop of the 360 using Airport Utility on my laptop. All other devices on the network are fine. When I switch the 2.4 GHz band on the AE to b/g only, then the connection speed on the 360 shoots up to 54 mbps. That of course neuters the rest of my wireless n devices to g speed since most connect to the 2.4 GHz band due to the limited distance of the 5 GHz band. Short of finding a solution, my next step is to try a different router brand. I'd rather stick with Apple, but have had more issues with 2 AE models than all of my other Apple hardware combined.