Dear Colin, and all friends,
Thank Colin, and friends for your support me . I'm summary all things we did with my WLAN system, Now its better and everything good.
1/ Remote traffic management ( Qos ) and set it to N/A
2/ Set local probe request threshold for all SSID to 0 ( zero)
3/ Disable 802.1K protocol on all SSID
4/Advertise 802.11r Capability for all SSID
5/ Set ARM Assignment to single-band
6/ Set ARM min/max is 12/12 for 2.4 and 5.0 GHz
7/ Set 20 MHz channels if you arre high density environment
8/ Enable LLDP and config per-per from SW PoE to AP , AP will running with fully power mode ( disable 1x1 mode on 2.4 Ghz ).
My SW PoE is Cisco 3650 and we put one command to ports connect to AP ( power inline port 2-event).
One more time, i want to say thank you to Colin, and all friend.
Thank you so much!