> Reducing Tx power seems to help a lot more. Default high power Tx seems to send beacons farther than most clients can successfully negotiate anyway; some APs

> Reducing Tx power seems to help a lot more. Default high power Tx seems to send beacons farther than most clients can successfully negotiate anyway; some APs get distortion at higher power, so useful signal is strictly lower (but you can see the beacons farther!), and clients seem to be looking at the signal strength (rather than signal quality) as a sign to scan and roam, you want to make sure strength isn't so high that roaming is avoided. Yes, one common effect of too-high Tx power is that the clients can hear the AP beacons but the AP can't reliably hear the clients, causing the clients to repeatedly try to associate. Most clients will backoff a given BSSID after a few association failures though. Ideally you set your Tx power to just slightly overlap the next AP. A lot of gear doesn't properly implement fast roaming though, in which case proper RF design will result in clients disconnecting for noticeable periods of time around the borders between APs. It's more often the base station gear's fault than the end-device's fault; in particular Apple's recent gear roams really well on a properly designed and implemented network.