STA is leaving IBSS or ESS

[bya14133]

I am using WAP 150.
This log is displayed irregularly and connection is not possible.
Is there a workaround?

WAP150

Firmware:1.1.0.5

Log:

May 27,2017 15:08:48 debug hostapd[30770] station: 84:25:3f:10:1b:e3 deauthenticated
May 27,2017 15:08:48 info hostapd[30770] STA 84:25:3f:10:1b:e3 deauthed from BSSID 80:e8:6f:0b:73:a6 reason 3: STA is leaving IBSS or ESS

[fernanpa]

I have two Cisco Wap 150 in cluster. After 2 or three days I got the problem with 2 Amazon Kindles, the following day with a chromecast and with and HP Laserjet. I'm experiencing the problem with a BQ intermintently.

I've broken the cluster but except HP not chromecast or kindles are capable to connect to wifi network.

HP laserjet depends on day, someday connect without problems and some others is imposible.

I've tried static channels including 2,4 and 5 GHz, downgrade 801.11 b/g/n to only 802.11 b/g, activate WPA/TKIP only and with WPA2-AES, remove band steer, etc. 

WPAs has static IP and correct DNS.

Any help appreciate