How to force client roaming between points?

Question

WiFi

Hello everyone, tell me where to dig. There is a network with Ubiquity points and a UniFi controller. The problem is that clients cling to the first point to the last, although there is already a second one right above their heads. Those. if you turn off WiFi and turn it on on the client - yes, it will connect to the nearest and more powerful one. But what is the strength of Ubiquity then? Are there any tricky or non-obvious nuances of how to set it up so that if the signal from point 1 is weaker than a certain value, then the client would be transferred (or some access point / controller gave him a kick) to the nearest, more powerful point?

Answer 1

In general, everything is clear about Ubiquity. The client himself tries to jump between the points, but you will not be lucky if there are zones with a difficult reception from two points. A client, even a modern one, can demolish the tower. When the coverage is solid (including overlapping areas between the points are in the "green zone") the client transitions between the points fairly smoothly.
I will add: "roaming" improved when I removed 2.4 GHz from almost all points, left 5 GHz, slightly adjusted the power and it got better. The laptop with Dlink DWA-182 is stupid and doesn't like to switch, but newer devices show themselves well.

Answer 2

Решени о переключении клиент принимает сам, если точка просто перестанет его обслуживать, то у вас будет провал в соединении пока клиент не переподключится.
Клиент цепляется до последнего потому, что уровень сигнала от текущей точки его устраивает.
Рекомендую уменьшить уровень сигнала на ближайших точка на 1/4 для 5G и в 2 раза для 2.4. Обычно все ставят full или auto, и обычно auto = full.
В среднем клиенты начинают переключатся если уровень сигнала меньше -65, -70dbm.
Надеюсь, что роуминг у вас включен. Тут так же сказано, что не все точки умеют роуминг 802.11r и рассказывать про соседей 802.11k.
https://help.ubnt.com/hc/en-us/articles/1150046621...