I've been playing with Probe Suppression/Force Disassociation to see if it could help in certain area's with clients that do not roam aggressively, however it does not seem to be working.  e.g. I have an ap with 16 clients on it, 4 of which have -80 RSSI.  When i enable probe suppression, force disassociation with a threshold of -65, none of the 4 clients get disassociated.  Any advice?  Thanks much.