Extenders works very badly, as they use 1/2 of bandwidth for themselves and need to be placed twice as often as APs. I have no problem to wire normal APs to swi

Extenders works very badly, as they use 1/2 of bandwidth for themselves and need to be placed twice as often as APs. I have no problem to wire normal APs to switch, as I have several RJ45 sockets in each corner of each room :-) Now I have one AP per room already, but can not implement seamless transition - when phone/laptop switches to other AP it requests DHCP again and drops all connections. It is very inconvenient. I know "Buy Cisco's APs for $700/piece and controller for several thousand $$$", I wander why there is no open-source solution (hostapd & Ko), which "secret source" these enterprise solutions include, is it private technology or some open industrial standards, like 802.11[some obscure letter]? Many expensive APs are built with Linux and hostpad inside, and still doesn't support this feature.