I have a high school that has a computer lab with 32 laptops. Also in the area are about 5 other teacher laptops. There are approximately 3 AP's in the vicinity within -72. The controller is running 4.0.179 using RRM. It seems that the computer lab is attaching to one AP only causing association and authentication failures. I can see, at one time, 28 clients on one AP, and it looks like load balancing is not functioning. I've applied the config load-balancing window 15 command with no luck, all though I have a feeling that RRM is controlling the load balancing and that command wasn't going to do much anyway. I've heard bad things about Aggressive Load Balancing so I am hesitant to turn it on.
Is there a setting I'm missing here? Or would a code upgrade solve this issue?