I could see the following log:
sapd[716]: <404046> <WARN> |AP MHB-6F-WAP19@172.22.36.97 sapd| AM 6c:f3:7f:3e:cd:d8: Low RSSI 15 detected for STA 18:87:96:8c:4a:1b BSS 6c:f3:7f:3e:cd:db ESS Manipal-Hosp Deauthing STA
I didnt observed with laptops. As of now i observed with mobile device.
Mobile HTC One X
S/W version Android 4.1.1
Controller :7220 v6.2.1.2
#7220