I believe this snippet of the logs shows the disconnection event: [18516.133492] wlan0: deauthenticated from 28:28:5d:92:bc:c4 (Reason: 15)
[18516.253865] cfg80211: Calling CRDA to update world regulatory domain [18516.264247] cfg80211: World regulatory domain updated: [18516.264254] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp) [18516.264258] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (N/A, 2000 mBm) [18516.264262] cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz), (N/A, 2000 mBm) [18516.264265] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (N/A, 2000 mBm) [18516.264268] cfg80211: (5170000 KHz - 5250000 KHz @ 80000 KHz), (N/A, 2000 mBm) [18516.264271] cfg80211: (5735000 KHz - 5835000 KHz @ 80000 KHz), (N/A, 2000 mBm) [18516.264274] cfg80211: (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 0 mBm) [18519.779058] wlan0: authenticate with 28:28:5d:92:bc:c4 [18519.796725] wlan0: send auth to 28:28:5d:92:bc:c4 (try 1/3) [18519.980289] wlan0: send auth to 28:28:5d:92:bc:c4 (try 2/3) [18520.157744] wlan0: send auth to 28:28:5d:92:bc:c4 (try 3/3) [18520.376222] wlan0: authentication with 28:28:5d:92:bc:c4 timed out [18523.931169] wlan0: authenticate with 28:28:5d:92:bc:c4 [18523.948551] wlan0: direct probe to 28:28:5d:92:bc:c4 (try 1/3) [18524.150135] wlan0: direct probe to 28:28:5d:92:bc:c4 (try 2/3) [18524.354148] wlan0: direct probe to 28:28:5d:92:bc:c4 (try 3/3) [18524.558129] wlan0: authentication with 28:28:5d:92:bc:c4 timed out [18528.062962] wlan0: authenticate with 28:28:5d:92:bc:c4 [18528.080447] wlan0: direct probe to 28:28:5d:92:bc:c4 (try 1/3) [18528.281984] wlan0: direct probe to 28:28:5d:92:bc:c4 (try 2/3) [18528.485984] wlan0: direct probe to 28:28:5d:92:bc:c4 (try 3/3) [18528.689969] wlan0: authentication with 28:28:5d:92:bc:c4 timed out
