Mixing AP 37xx, 38xx, and 39xx aps in one environment

[Bryan_Donahue]

I have a mixture of ap models in school environments, and it seems as if the clients are showing a preference for 39xx aps over 38xx aps. In adjacent rooms where I have different types, I will have many more connections to the 39xx ap. (there are typically 20-25 chromebooks in each classrooom) and there will be 50-60 connections to the 39xx ap and 15-20 connections to the 38xx ap in the next room. Is this possible? Preventable?

[Bryan_Donahue]

I have probe suppression turned on and forced disassociation at -65Db. Power levels are auto set but are similar on all aps in a given area. Channels are also auto selected but I don't see any problems there.

[Jeremy_Gibbs]

Well, you could look at probe suppression and force disassociation at -75 dB. Do you have the power levels set the same on both APs (one isn't blasting both radios at 12 dB while the other is at 5 dB). Do you have any co-channel interference that could be preventing your client from wanting to connect to that AP?