Try following the guide from this page(not mine) --> https://blog.linitx.com/howto-improved- ... t-roaming/
You have to help the clients get kicked off their current AP otherwise they will try to hold onto the connection as long as possible. With the above method, the AP will send disconnects at the desired signal strength, which will trigger the client to get disconnected and find the next available AP. All of which should happen in less than a second.
You'll need to do some testing to figure out which signal strength you should kick the clients depending on how far apart or close your APs are.
Okay so I built a CAPsMAN network with 3 APs all using the same configuration set (the APs are just two 2011s and a Cloud Switch), which scuttlebutt says will result in zero-handoff roaming.
It doesn't actually work, my wifi devices see one SSID and connect to it, and on CAPsMAN I can see the device is registered on the closest radio, but if I wander away from one radio into range of another, the wifi signal doesn't elegantly handover to the next AP. There's a downtime of around 15 seconds.
Is there any specific datapath settings I should mess with here or is a 15 second downtime pretty normal for this kind of thing?