Our office has been rocking a ZoneDirector 1000 with three ZoneFlex 7962 access points for a number of years now. Two of those APs are on one floor and the third in a mezzanine area above.
I get sporadic (but frequent enough that it requires investigation) of people having difficulty with their connection when they come up to the mezzanine area. As near as I can tell, the ZoneDirector isn't properly handling the signal "hand-off" from one AP to the next and the client winds up losing the connection (a power cycle of the wifi resolves the issue, but that's a poor solution).
Unfortunately, I don't understand enough about how the ZD handles this process to know how to troubleshoot this. Any ideas?