RB951Ui-2HnD Wireless log

In log:
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1- what make a device disconnect with the following two messages?:

04:1B:BA:36:79:60@wlan1: disconnected, extensive data loss

data from unknown device 04:1B:BA:36:79:60, sent deauth

And how the log show it as unknown device although the device is in the Access List (ACL)?.

2- what is the meaning of attempts to associate and reassociating that makes that device disconnected (the second screenshot)?


The device is android mobile, but i see that message for other devices including windows 7 laptop.

“disconnected, extensive data loss” because the device is too far from MT AP or device battery is too low
for deauth i dont know yet…