What makes clients connect at slower speeds when they have rssi beter than -65?

I have several clients that conect up on 802.11n that are running at 7mbps. Cisco seems to think that it is because the clients are running a single spatial. Why would a client connect to N if it has only one antenna when it could be faster with just...

Does anyone know how to get around the issue of Apple IPhones getting Internet access without changing the iPhone settings? I know about changing the SSID settings on the iPhone to get to work but feel this is not good in a hot site location. Thank...

I have an ASA5505 with 10 user licence and I only have 6 devices connected yet I am getting denys from messages of going over the 10 user licence when I try to make connections and pinging.