Router disconnects all wireless clients

Installing and Using OpenWrt Network and Wireless Configuration
1

i have 2 wr842n v3 routers configured with 802.11r wireless. sometimes one of AP drops all clients, and they goes to another AP. in logs i see like this:

Mon Nov 19 11:06:51 2018 daemon.notice hostapd: wlan0: AP-STA-DISCONNECTED f4:b7:e2:a4:16:2f
Mon Nov 19 11:06:51 2018 daemon.info hostapd: wlan0: STA f4:b7:e2:a4:16:2f IEEE 802.11: disassociated due to inactivity
Mon Nov 19 11:06:51 2018 daemon.debug hostapd: wlan0: STA f4:b7:e2:a4:16:2f MLME: MLME-DISASSOCIATE.indication(f4:b7:e2:a4:16:2f, 4)
Mon Nov 19 11:06:51 2018 daemon.debug hostapd: wlan0: STA f4:b7:e2:a4:16:2f MLME: MLME-DELETEKEYS.request(f4:b7:e2:a4:16:2f)
Mon Nov 19 11:06:52 2018 daemon.info hostapd: wlan0: STA f4:b7:e2:a4:16:2f IEEE 802.11: deauthenticated due to inactivity (timer DEAUTH/REMOVE)
Mon Nov 19 11:06:52 2018 daemon.debug hostapd: wlan0: STA f4:b7:e2:a4:16:2f MLME: MLME-DEAUTHENTICATE.indication(f4:b7:e2:a4:16:2f, 2)
Mon Nov 19 11:06:52 2018 daemon.debug hostapd: wlan0: STA f4:b7:e2:a4:16:2f MLME: MLME-DELETEKEYS.request(f4:b7:e2:a4:16:2f)
Mon Nov 19 11:06:57 2018 daemon.debug hostapd: wlan0: STA 10:cd:b6:04:50:88 IEEE 802.11: authentication OK (open system)
Mon Nov 19 11:06:57 2018 daemon.debug hostapd: wlan0: STA 10:cd:b6:04:50:88 MLME: MLME-AUTHENTICATE.indication(10:cd:b6:04:50:88, OPEN_SYSTEM)
Mon Nov 19 11:06:57 2018 daemon.debug hostapd: wlan0: STA 10:cd:b6:04:50:88 MLME: MLME-DELETEKEYS.request(10:cd:b6:04:50:88)
Mon Nov 19 11:06:57 2018 daemon.info hostapd: wlan0: STA 10:cd:b6:04:50:88 IEEE 802.11: authenticated
Mon Nov 19 11:06:57 2018 daemon.debug hostapd: wlan0: STA 10:cd:b6:04:50:88 IEEE 802.11: association OK (aid 4)
Mon Nov 19 11:06:57 2018 daemon.info hostapd: wlan0: STA 10:cd:b6:04:50:88 IEEE 802.11: associated (aid 4)
Mon Nov 19 11:06:57 2018 daemon.debug hostapd: wlan0: STA 10:cd:b6:04:50:88 MLME: MLME-REASSOCIATE.indication(10:cd:b6:04:50:88)
Mon Nov 19 11:06:57 2018 daemon.debug hostapd: wlan0: STA 10:cd:b6:04:50:88 MLME: MLME-DELETEKEYS.request(10:cd:b6:04:50:88)
Mon Nov 19 11:06:57 2018 daemon.debug hostapd: wlan0: STA 10:cd:b6:04:50:88 IEEE 802.11: binding station to interface 'wlan0'
Mon Nov 19 11:06:57 2018 daemon.debug hostapd: wlan0: STA 10:cd:b6:04:50:88 WPA: event 1 notification
Mon Nov 19 11:06:57 2018 daemon.debug hostapd: wlan0: STA 10:cd:b6:04:50:88 WPA: start authentication
Mon Nov 19 11:06:57 2018 daemon.debug hostapd: wlan0: STA 10:cd:b6:04:50:88 IEEE 802.1X: unauthorizing port
Mon Nov 19 11:06:57 2018 daemon.debug hostapd: wlan0: STA 10:cd:b6:04:50:88 WPA: sending 1/4 msg of 4-Way Handshake
Mon Nov 19 11:06:57 2018 daemon.debug hostapd: wlan0: STA 10:cd:b6:04:50:88 WPA: received EAPOL-Key frame (2/4 Pairwise)
Mon Nov 19 11:06:57 2018 daemon.debug hostapd: wlan0: STA 10:cd:b6:04:50:88 WPA: sending 3/4 msg of 4-Way Handshake
Mon Nov 19 11:06:57 2018 daemon.debug hostapd: wlan0: STA 10:cd:b6:04:50:88 WPA: received EAPOL-Key frame (4/4 Pairwise)
Mon Nov 19 11:06:57 2018 daemon.notice hostapd: wlan0: AP-STA-CONNECTED 10:cd:b6:04:50:88
Mon Nov 19 11:06:57 2018 daemon.debug hostapd: wlan0: STA 10:cd:b6:04:50:88 IEEE 802.1X: authorizing port
Mon Nov 19 11:06:57 2018 daemon.info hostapd: wlan0: STA 10:cd:b6:04:50:88 WPA: pairwise key handshake completed (RSN)
Mon Nov 19 11:06:57 2018 daemon.debug hostapd: wlan0: STA 40:98:ad:e4:73:df IEEE 802.11: authentication OK (open system)
Mon Nov 19 11:06:57 2018 daemon.debug hostapd: wlan0: STA 40:98:ad:e4:73:df MLME: MLME-AUTHENTICATE.indication(40:98:ad:e4:73:df, OPEN_SYSTEM)
Mon Nov 19 11:06:57 2018 daemon.debug hostapd: wlan0: STA 40:98:ad:e4:73:df MLME: MLME-DELETEKEYS.request(40:98:ad:e4:73:df)
Mon Nov 19 11:06:57 2018 daemon.info hostapd: wlan0: STA 40:98:ad:e4:73:df IEEE 802.11: authenticated
Mon Nov 19 11:06:57 2018 daemon.debug hostapd: wlan0: STA 40:98:ad:e4:73:df IEEE 802.11: association OK (aid 14)
Mon Nov 19 11:06:57 2018 daemon.info hostapd: wlan0: STA 40:98:ad:e4:73:df IEEE 802.11: associated (aid 14)
Mon Nov 19 11:06:57 2018 daemon.debug hostapd: wlan0: STA 40:98:ad:e4:73:df MLME: MLME-REASSOCIATE.indication(40:98:ad:e4:73:df)
Mon Nov 19 11:06:57 2018 daemon.debug hostapd: wlan0: STA 40:98:ad:e4:73:df MLME: MLME-DELETEKEYS.request(40:98:ad:e4:73:df)
Mon Nov 19 11:06:57 2018 daemon.debug hostapd: wlan0: STA 40:98:ad:e4:73:df IEEE 802.11: binding station to interface 'wlan0'
Mon Nov 19 11:06:57 2018 daemon.debug hostapd: wlan0: STA 40:98:ad:e4:73:df WPA: event 1 notification
Mon Nov 19 11:06:57 2018 daemon.debug hostapd: wlan0: STA 40:98:ad:e4:73:df WPA: start authentication
Mon Nov 19 11:06:57 2018 daemon.debug hostapd: wlan0: STA 40:98:ad:e4:73:df IEEE 802.1X: unauthorizing port
Mon Nov 19 11:06:57 2018 daemon.debug hostapd: wlan0: STA 40:98:ad:e4:73:df WPA: sending 1/4 msg of 4-Way Handshake
Mon Nov 19 11:06:57 2018 daemon.debug hostapd: wlan0: STA 40:98:ad:e4:73:df WPA: received EAPOL-Key frame (2/4 Pairwise)
Mon Nov 19 11:06:57 2018 daemon.debug hostapd: wlan0: STA 40:98:ad:e4:73:df WPA: sending 3/4 msg of 4-Way Handshake
Mon Nov 19 11:06:57 2018 daemon.debug hostapd: wlan0: STA 40:98:ad:e4:73:df WPA: received EAPOL-Key frame (4/4 Pairwise)
Mon Nov 19 11:06:57 2018 daemon.notice hostapd: wlan0: AP-STA-CONNECTED 40:98:ad:e4:73:df
Mon Nov 19 11:06:57 2018 daemon.debug hostapd: wlan0: STA 40:98:ad:e4:73:df IEEE 802.1X: authorizing port
Mon Nov 19 11:06:57 2018 daemon.info hostapd: wlan0: STA 40:98:ad:e4:73:df WPA: pairwise key handshake completed (RSN)
Mon Nov 19 11:07:09 2018 daemon.notice hostapd: wlan0: AP-STA-DISCONNECTED 50:a6:7f:a5:04:94
Mon Nov 19 11:07:09 2018 daemon.info hostapd: wlan0: STA 50:a6:7f:a5:04:94 IEEE 802.11: disassociated due to inactivity
Mon Nov 19 11:07:09 2018 daemon.debug hostapd: wlan0: STA 50:a6:7f:a5:04:94 MLME: MLME-DISASSOCIATE.indication(50:a6:7f:a5:04:94, 4)
Mon Nov 19 11:07:09 2018 daemon.debug hostapd: wlan0: STA 50:a6:7f:a5:04:94 MLME: MLME-DELETEKEYS.request(50:a6:7f:a5:04:94)
Mon Nov 19 11:07:10 2018 daemon.info hostapd: wlan0: STA 50:a6:7f:a5:04:94 IEEE 802.11: deauthenticated due to inactivity (timer DEAUTH/REMOVE)
Mon Nov 19 11:07:10 2018 daemon.debug hostapd: wlan0: STA 50:a6:7f:a5:04:94 MLME: MLME-DEAUTHENTICATE.indication(50:a6:7f:a5:04:94, 2)
Mon Nov 19 11:07:10 2018 daemon.debug hostapd: wlan0: STA 50:a6:7f:a5:04:94 MLME: MLME-DELETEKEYS.request(50:a6:7f:a5:04:94)
Mon Nov 19 11:11:30 2018 daemon.debug hostapd: wlan0: STA f4:b7:e2:a4:16:2f IEEE 802.11: authentication OK (open system)
Mon Nov 19 11:11:30 2018 daemon.debug hostapd: wlan0: STA f4:b7:e2:a4:16:2f MLME: MLME-AUTHENTICATE.indication(f4:b7:e2:a4:16:2f, OPEN_SYSTEM)
Mon Nov 19 11:11:30 2018 daemon.debug hostapd: wlan0: STA f4:b7:e2:a4:16:2f MLME: MLME-DELETEKEYS.request(f4:b7:e2:a4:16:2f)
Mon Nov 19 11:11:30 2018 daemon.info hostapd: wlan0: STA f4:b7:e2:a4:16:2f IEEE 802.11: authenticated
Mon Nov 19 11:11:30 2018 daemon.debug hostapd: wlan0: STA f4:b7:e2:a4:16:2f IEEE 802.11: association OK (aid 6)
Mon Nov 19 11:11:30 2018 daemon.info hostapd: wlan0: STA f4:b7:e2:a4:16:2f IEEE 802.11: associated (aid 6)
Mon Nov 19 11:11:30 2018 daemon.debug hostapd: wlan0: STA f4:b7:e2:a4:16:2f MLME: MLME-REASSOCIATE.indication(f4:b7:e2:a4:16:2f)
Mon Nov 19 11:11:30 2018 daemon.debug hostapd: wlan0: STA f4:b7:e2:a4:16:2f MLME: MLME-DELETEKEYS.request(f4:b7:e2:a4:16:2f)
Mon Nov 19 11:11:30 2018 daemon.debug hostapd: wlan0: STA f4:b7:e2:a4:16:2f IEEE 802.11: binding station to interface 'wlan0'
Mon Nov 19 11:11:30 2018 daemon.debug hostapd: wlan0: STA f4:b7:e2:a4:16:2f WPA: event 1 notification
Mon Nov 19 11:11:30 2018 daemon.debug hostapd: wlan0: STA f4:b7:e2:a4:16:2f WPA: start authentication
Mon Nov 19 11:11:30 2018 daemon.debug hostapd: wlan0: STA f4:b7:e2:a4:16:2f IEEE 802.1X: unauthorizing port
Mon Nov 19 11:11:30 2018 daemon.debug hostapd: wlan0: STA f4:b7:e2:a4:16:2f WPA: sending 1/4 msg of 4-Way Handshake
Mon Nov 19 11:11:31 2018 daemon.debug hostapd: wlan0: STA f4:b7:e2:a4:16:2f WPA: received EAPOL-Key frame (2/4 Pairwise)
Mon Nov 19 11:11:31 2018 daemon.debug hostapd: wlan0: STA f4:b7:e2:a4:16:2f WPA: sending 3/4 msg of 4-Way Handshake
Mon Nov 19 11:11:31 2018 daemon.debug hostapd: wlan0: STA f4:b7:e2:a4:16:2f WPA: received EAPOL-Key frame (4/4 Pairwise)
Mon Nov 19 11:11:31 2018 daemon.notice hostapd: wlan0: AP-STA-CONNECTED f4:b7:e2:a4:16:2f
Mon Nov 19 11:11:31 2018 daemon.debug hostapd: wlan0: STA f4:b7:e2:a4:16:2f IEEE 802.1X: authorizing port
Mon Nov 19 11:11:31 2018 daemon.info hostapd: wlan0: STA f4:b7:e2:a4:16:2f WPA: pairwise key handshake completed (RSN)
Mon Nov 19 11:13:54 2018 daemon.info hostapd: wlan0: STA f4:b7:e2:a4:16:2f IEEE 802.11: disconnected due to excessive missing ACKs
Mon Nov 19 11:13:54 2018 daemon.notice hostapd: wlan0: AP-STA-DISCONNECTED f4:b7:e2:a4:16:2f
Mon Nov 19 11:13:54 2018 daemon.debug hostapd: wlan0: STA f4:b7:e2:a4:16:2f MLME: MLME-DISASSOCIATE.indication(f4:b7:e2:a4:16:2f, 34)
Mon Nov 19 11:13:54 2018 daemon.debug hostapd: wlan0: STA f4:b7:e2:a4:16:2f MLME: MLME-DELETEKEYS.request(f4:b7:e2:a4:16:2f)
Mon Nov 19 11:13:57 2018 daemon.notice hostapd: wlan0: AP-STA-DISCONNECTED 18:f0:e4:0f:f0:cc
Mon Nov 19 11:13:57 2018 daemon.info hostapd: wlan0: STA 18:f0:e4:0f:f0:cc IEEE 802.11: disassociated due to inactivity
Mon Nov 19 11:13:57 2018 daemon.debug hostapd: wlan0: STA 18:f0:e4:0f:f0:cc MLME: MLME-DISASSOCIATE.indication(18:f0:e4:0f:f0:cc, 4)
Mon Nov 19 11:13:57 2018 daemon.debug hostapd: wlan0: STA 18:f0:e4:0f:f0:cc MLME: MLME-DELETEKEYS.request(18:f0:e4:0f:f0:cc)
Mon Nov 19 11:13:58 2018 daemon.info hostapd: wlan0: STA 18:f0:e4:0f:f0:cc IEEE 802.11: deauthenticated due to inactivity (timer DEAUTH/REMOVE)
Mon Nov 19 11:13:58 2018 daemon.debug hostapd: wlan0: STA 18:f0:e4:0f:f0:cc MLME: MLME-DEAUTHENTICATE.indication(18:f0:e4:0f:f0:cc, 2)
Mon Nov 19 11:13:58 2018 daemon.debug hostapd: wlan0: STA 18:f0:e4:0f:f0:cc MLME: MLME-DELETEKEYS.request(18:f0:e4:0f:f0:cc)
Mon Nov 19 11:14:24 2018 daemon.info hostapd: wlan0: STA f4:b7:e2:a4:16:2f IEEE 802.11: deauthenticated due to inactivity (timer DEAUTH/REMOVE)
Mon Nov 19 11:14:24 2018 daemon.debug hostapd: wlan0: STA f4:b7:e2:a4:16:2f MLME: MLME-DEAUTHENTICATE.indication(f4:b7:e2:a4:16:2f, 2)
Mon Nov 19 11:14:24 2018 daemon.debug hostapd: wlan0: STA f4:b7:e2:a4:16:2f MLME: MLME-DELETEKEYS.request(f4:b7:e2:a4:16:2f)
Mon Nov 19 11:18:57 2018 daemon.notice hostapd: wlan0: AP-STA-DISCONNECTED 10:cd:b6:04:50:88
Mon Nov 19 11:18:57 2018 daemon.info hostapd: wlan0: STA 10:cd:b6:04:50:88 IEEE 802.11: disassociated due to inactivity
Mon Nov 19 11:18:57 2018 daemon.debug hostapd: wlan0: STA 10:cd:b6:04:50:88 MLME: MLME-DISASSOCIATE.indication(10:cd:b6:04:50:88, 4)
Mon Nov 19 11:18:57 2018 daemon.debug hostapd: wlan0: STA 10:cd:b6:04:50:88 MLME: MLME-DELETEKEYS.request(10:cd:b6:04:50:88)
Mon Nov 19 11:18:58 2018 daemon.info hostapd: wlan0: STA 10:cd:b6:04:50:88 IEEE 802.11: deauthenticated due to inactivity (timer DEAUTH/REMOVE)
Mon Nov 19 11:18:58 2018 daemon.debug hostapd: wlan0: STA 10:cd:b6:04:50:88 MLME: MLME-DEAUTHENTICATE.indication(10:cd:b6:04:50:88, 2)
Mon Nov 19 11:18:58 2018 daemon.debug hostapd: wlan0: STA 10:cd:b6:04:50:88 MLME: MLME-DELETEKEYS.request(10:cd:b6:04:50:88)
Mon Nov 19 11:19:02 2018 daemon.notice hostapd: wlan0: AP-STA-DISCONNECTED 20:82:c0:d4:d8:a3
Mon Nov 19 11:19:02 2018 daemon.info hostapd: wlan0: STA 20:82:c0:d4:d8:a3 IEEE 802.11: disassociated due to inactivity
Mon Nov 19 11:19:02 2018 daemon.debug hostapd: wlan0: STA 20:82:c0:d4:d8:a3 MLME: MLME-DISASSOCIATE.indication(20:82:c0:d4:d8:a3, 4)
Mon Nov 19 11:19:02 2018 daemon.debug hostapd: wlan0: STA 20:82:c0:d4:d8:a3 MLME: MLME-DELETEKEYS.request(20:82:c0:d4:d8:a3)
Mon Nov 19 11:19:03 2018 daemon.info hostapd: wlan0: STA 20:82:c0:d4:d8:a3 IEEE 802.11: deauthenticated due to inactivity (timer DEAUTH/REMOVE)
Mon Nov 19 11:19:03 2018 daemon.debug hostapd: wlan0: STA 20:82:c0:d4:d8:a3 MLME: MLME-DEAUTHENTICATE.indication(20:82:c0:d4:d8:a3, 2)
Mon Nov 19 11:19:03 2018 daemon.debug hostapd: wlan0: STA 20:82:c0:d4:d8:a3 MLME: MLME-DELETEKEYS.request(20:82:c0:d4:d8:a3)
Mon Nov 19 11:19:21 2018 daemon.notice hostapd: wlan0: AP-STA-DISCONNECTED 40:98:ad:e4:73:df
Mon Nov 19 11:19:21 2018 daemon.info hostapd: wlan0: STA 40:98:ad:e4:73:df IEEE 802.11: disassociated due to inactivity
Mon Nov 19 11:19:21 2018 daemon.debug hostapd: wlan0: STA 40:98:ad:e4:73:df MLME: MLME-DISASSOCIATE.indication(40:98:ad:e4:73:df, 4)
Mon Nov 19 11:19:21 2018 daemon.debug hostapd: wlan0: STA 40:98:ad:e4:73:df MLME: MLME-DELETEKEYS.request(40:98:ad:e4:73:df)
Mon Nov 19 11:19:22 2018 daemon.info hostapd: wlan0: STA 40:98:ad:e4:73:df IEEE 802.11: deauthenticated due to inactivity (timer DEAUTH/REMOVE)
Mon Nov 19 11:19:22 2018 daemon.debug hostapd: wlan0: STA 40:98:ad:e4:73:df MLME: MLME-DEAUTHENTICATE.indication(40:98:ad:e4:73:df, 2)
Mon Nov 19 11:19:22 2018 daemon.debug hostapd: wlan0: STA 40:98:ad:e4:73:df MLME: MLME-DELETEKEYS.request(40:98:ad:e4:73:df)
Mon Nov 19 11:19:25 2018 daemon.notice hostapd: wlan0: AP-STA-DISCONNECTED c0:ee:fb:db:8e:0f
Mon Nov 19 11:19:25 2018 daemon.info hostapd: wlan0: STA c0:ee:fb:db:8e:0f IEEE 802.11: disassociated due to inactivity
Mon Nov 19 11:19:25 2018 daemon.debug hostapd: wlan0: STA c0:ee:fb:db:8e:0f MLME: MLME-DISASSOCIATE.indication(c0:ee:fb:db:8e:0f, 4)
Mon Nov 19 11:19:25 2018 daemon.debug hostapd: wlan0: STA c0:ee:fb:db:8e:0f MLME: MLME-DELETEKEYS.request(c0:ee:fb:db:8e:0f)
Mon Nov 19 11:19:26 2018 daemon.info hostapd: wlan0: STA c0:ee:fb:db:8e:0f IEEE 802.11: deauthenticated due to inactivity (timer DEAUTH/REMOVE)
Mon Nov 19 11:19:26 2018 daemon.debug hostapd: wlan0: STA c0:ee:fb:db:8e:0f MLME: MLME-DEAUTHENTICATE.indication(c0:ee:fb:db:8e:0f, 2)
Mon Nov 19 11:19:26 2018 daemon.debug hostapd: wlan0: STA c0:ee:fb:db:8e:0f MLME: MLME-DELETEKEYS.request(c0:ee:fb:db:8e:0f)
Mon Nov 19 11:19:26 2018 daemon.notice hostapd: wlan0: AP-STA-DISCONNECTED a8:b8:6e:49:cf:f7
Mon Nov 19 11:19:26 2018 daemon.info hostapd: wlan0: STA a8:b8:6e:49:cf:f7 IEEE 802.11: disassociated due to inactivity
Mon Nov 19 11:19:26 2018 daemon.debug hostapd: wlan0: STA a8:b8:6e:49:cf:f7 MLME: MLME-DISASSOCIATE.indication(a8:b8:6e:49:cf:f7, 4)
Mon Nov 19 11:19:26 2018 daemon.debug hostapd: wlan0: STA a8:b8:6e:49:cf:f7 MLME: MLME-DELETEKEYS.request(a8:b8:6e:49:cf:f7)
Mon Nov 19 11:19:27 2018 daemon.info hostapd: wlan0: STA a8:b8:6e:49:cf:f7 IEEE 802.11: deauthenticated due to inactivity (timer DEAUTH/REMOVE)
Mon Nov 19 11:19:27 2018 daemon.debug hostapd: wlan0: STA a8:b8:6e:49:cf:f7 MLME: MLME-DEAUTHENTICATE.indication(a8:b8:6e:49:cf:f7, 2)
Mon Nov 19 11:19:27 2018 daemon.debug hostapd: wlan0: STA a8:b8:6e:49:cf:f7 MLME: MLME-DELETEKEYS.request(a8:b8:6e:49:cf:f7)
Mon Nov 19 11:19:31 2018 daemon.notice hostapd: wlan0: AP-STA-DISCONNECTED 9c:2e:a1:3c:c2:23
Mon Nov 19 11:19:31 2018 daemon.info hostapd: wlan0: STA 9c:2e:a1:3c:c2:23 IEEE 802.11: disassociated due to inactivity
Mon Nov 19 11:19:31 2018 daemon.debug hostapd: wlan0: STA 9c:2e:a1:3c:c2:23 MLME: MLME-DISASSOCIATE.indication(9c:2e:a1:3c:c2:23, 4)
Mon Nov 19 11:19:31 2018 daemon.debug hostapd: wlan0: STA 9c:2e:a1:3c:c2:23 MLME: MLME-DELETEKEYS.request(9c:2e:a1:3c:c2:23)
Mon Nov 19 11:19:32 2018 daemon.info hostapd: wlan0: STA 9c:2e:a1:3c:c2:23 IEEE 802.11: deauthenticated due to inactivity (timer DEAUTH/REMOVE)
Mon Nov 19 11:19:32 2018 daemon.debug hostapd: wlan0: STA 9c:2e:a1:3c:c2:23 MLME: MLME-DEAUTHENTICATE.indication(9c:2e:a1:3c:c2:23, 2)
Mon Nov 19 11:19:32 2018 daemon.debug hostapd: wlan0: STA 9c:2e:a1:3c:c2:23 MLME: MLME-DELETEKEYS.request(9c:2e:a1:3c:c2:23)
Mon Nov 19 11:19:36 2018 daemon.notice hostapd: wlan0: AP-STA-DISCONNECTED c0:ee:fb:25:6f:fe
Mon Nov 19 11:19:36 2018 daemon.info hostapd: wlan0: STA c0:ee:fb:25:6f:fe IEEE 802.11: disassociated due to inactivity
Mon Nov 19 11:19:36 2018 daemon.debug hostapd: wlan0: STA c0:ee:fb:25:6f:fe MLME: MLME-DISASSOCIATE.indication(c0:ee:fb:25:6f:fe, 4)
Mon Nov 19 11:19:36 2018 daemon.debug hostapd: wlan0: STA c0:ee:fb:25:6f:fe MLME: MLME-DELETEKEYS.request(c0:ee:fb:25:6f:fe)
Mon Nov 19 11:19:37 2018 daemon.info hostapd: wlan0: STA c0:ee:fb:25:6f:fe IEEE 802.11: deauthenticated due to inactivity (timer DEAUTH/REMOVE)
Mon Nov 19 11:19:37 2018 daemon.debug hostapd: wlan0: STA c0:ee:fb:25:6f:fe MLME: MLME-DEAUTHENTICATE.indication(c0:ee:fb:25:6f:fe, 2)
Mon Nov 19 11:19:37 2018 daemon.debug hostapd: wlan0: STA c0:ee:fb:25:6f:fe MLME: MLME-DELETEKEYS.request(c0:ee:fb:25:6f:fe)
Mon Nov 19 11:19:37 2018 daemon.notice hostapd: wlan0: AP-STA-DISCONNECTED 88:e9:fe:56:24:d6
Mon Nov 19 11:19:37 2018 daemon.info hostapd: wlan0: STA 88:e9:fe:56:24:d6 IEEE 802.11: disassociated due to inactivity
Mon Nov 19 11:19:37 2018 daemon.debug hostapd: wlan0: STA 88:e9:fe:56:24:d6 MLME: MLME-DISASSOCIATE.indication(88:e9:fe:56:24:d6, 4)
Mon Nov 19 11:19:37 2018 daemon.debug hostapd: wlan0: STA 88:e9:fe:56:24:d6 MLME: MLME-DELETEKEYS.request(88:e9:fe:56:24:d6)
Mon Nov 19 11:19:37 2018 daemon.notice hostapd: wlan0: AP-STA-DISCONNECTED 34:e1:2d:14:e7:1d
Mon Nov 19 11:19:37 2018 daemon.info hostapd: wlan0: STA 34:e1:2d:14:e7:1d IEEE 802.11: disassociated due to inactivity
Mon Nov 19 11:19:37 2018 daemon.debug hostapd: wlan0: STA 34:e1:2d:14:e7:1d MLME: MLME-DISASSOCIATE.indication(34:e1:2d:14:e7:1d, 4)
Mon Nov 19 11:19:37 2018 daemon.debug hostapd: wlan0: STA 34:e1:2d:14:e7:1d MLME: MLME-DELETEKEYS.request(34:e1:2d:14:e7:1d)
Mon Nov 19 11:19:38 2018 daemon.info hostapd: wlan0: STA 88:e9:fe:56:24:d6 IEEE 802.11: deauthenticated due to inactivity (timer DEAUTH/REMOVE)
Mon Nov 19 11:19:38 2018 daemon.debug hostapd: wlan0: STA 88:e9:fe:56:24:d6 MLME: MLME-DEAUTHENTICATE.indication(88:e9:fe:56:24:d6, 2)
Mon Nov 19 11:19:38 2018 daemon.debug hostapd: wlan0: STA 88:e9:fe:56:24:d6 MLME: MLME-DELETEKEYS.request(88:e9:fe:56:24:d6)
Mon Nov 19 11:19:38 2018 daemon.info hostapd: wlan0: STA 34:e1:2d:14:e7:1d IEEE 802.11: deauthenticated due to inactivity (timer DEAUTH/REMOVE)
Mon Nov 19 11:19:38 2018 daemon.debug hostapd: wlan0: STA 34:e1:2d:14:e7:1d MLME: MLME-DEAUTHENTICATE.indication(34:e1:2d:14:e7:1d, 2)
Mon Nov 19 11:19:38 2018 daemon.debug hostapd: wlan0: STA 34:e1:2d:14:e7:1d MLME: MLME-DELETEKEYS.request(34:e1:2d:14:e7:1d)
Mon Nov 19 11:19:39 2018 daemon.notice hostapd: wlan0: AP-STA-DISCONNECTED 78:4f:43:8e:c8:4a
Mon Nov 19 11:19:39 2018 daemon.info hostapd: wlan0: STA 78:4f:43:8e:c8:4a IEEE 802.11: disassociated due to inactivity
Mon Nov 19 11:19:39 2018 daemon.debug hostapd: wlan0: STA 78:4f:43:8e:c8:4a MLME: MLME-DISASSOCIATE.indication(78:4f:43:8e:c8:4a, 4)
Mon Nov 19 11:19:39 2018 daemon.debug hostapd: wlan0: STA 78:4f:43:8e:c8:4a MLME: MLME-DELETEKEYS.request(78:4f:43:8e:c8:4a)
Mon Nov 19 11:19:40 2018 daemon.info hostapd: wlan0: STA 78:4f:43:8e:c8:4a IEEE 802.11: deauthenticated due to inactivity (timer DEAUTH/REMOVE)
Mon Nov 19 11:19:40 2018 daemon.debug hostapd: wlan0: STA 78:4f:43:8e:c8:4a MLME: MLME-DEAUTHENTICATE.indication(78:4f:43:8e:c8:4a, 2)
Mon Nov 19 11:19:40 2018 daemon.debug hostapd: wlan0: STA 78:4f:43:8e:c8:4a MLME: MLME-DELETEKEYS.request(78:4f:43:8e:c8:4a)
Mon Nov 19 11:19:41 2018 daemon.notice hostapd: wlan0: AP-STA-DISCONNECTED c8:38:70:a1:44:7e
Mon Nov 19 11:19:41 2018 daemon.info hostapd: wlan0: STA c8:38:70:a1:44:7e IEEE 802.11: disassociated due to inactivity
Mon Nov 19 11:19:41 2018 daemon.debug hostapd: wlan0: STA c8:38:70:a1:44:7e MLME: MLME-DISASSOCIATE.indication(c8:38:70:a1:44:7e, 4)
Mon Nov 19 11:19:41 2018 daemon.debug hostapd: wlan0: STA c8:38:70:a1:44:7e MLME: MLME-DELETEKEYS.request(c8:38:70:a1:44:7e)
Mon Nov 19 11:19:41 2018 daemon.notice hostapd: wlan0: AP-STA-DISCONNECTED 6c:72:e7:4e:21:ac
Mon Nov 19 11:19:41 2018 daemon.info hostapd: wlan0: STA 6c:72:e7:4e:21:ac IEEE 802.11: disassociated due to inactivity
Mon Nov 19 11:19:41 2018 daemon.debug hostapd: wlan0: STA 6c:72:e7:4e:21:ac MLME: MLME-DISASSOCIATE.indication(6c:72:e7:4e:21:ac, 4)
Mon Nov 19 11:19:41 2018 daemon.debug hostapd: wlan0: STA 6c:72:e7:4e:21:ac MLME: MLME-DELETEKEYS.request(6c:72:e7:4e:21:ac)
Mon Nov 19 11:19:42 2018 daemon.info hostapd: wlan0: STA c8:38:70:a1:44:7e IEEE 802.11: deauthenticated due to inactivity (timer DEAUTH/REMOVE)
Mon Nov 19 11:19:42 2018 daemon.debug hostapd: wlan0: STA c8:38:70:a1:44:7e MLME: MLME-DEAUTHENTICATE.indication(c8:38:70:a1:44:7e, 2)
Mon Nov 19 11:19:42 2018 daemon.debug hostapd: wlan0: STA c8:38:70:a1:44:7e MLME: MLME-DELETEKEYS.request(c8:38:70:a1:44:7e)
Mon Nov 19 11:19:42 2018 daemon.info hostapd: wlan0: STA 6c:72:e7:4e:21:ac IEEE 802.11: deauthenticated due to inactivity (timer DEAUTH/REMOVE)
Mon Nov 19 11:19:42 2018 daemon.debug hostapd: wlan0: STA 6c:72:e7:4e:21:ac MLME: MLME-DEAUTHENTICATE.indication(6c:72:e7:4e:21:ac, 2)
Mon Nov 19 11:19:42 2018 daemon.debug hostapd: wlan0: STA 6c:72:e7:4e:21:ac MLME: MLME-DELETEKEYS.request(6c:72:e7:4e:21:ac)
Mon Nov 19 11:19:42 2018 daemon.notice hostapd: wlan0: AP-STA-DISCONNECTED 34:e1:2d:14:e7:f9
Mon Nov 19 11:19:42 2018 daemon.info hostapd: wlan0: STA 34:e1:2d:14:e7:f9 IEEE 802.11: disassociated due to inactivity
Mon Nov 19 11:19:42 2018 daemon.debug hostapd: wlan0: STA 34:e1:2d:14:e7:f9 MLME: MLME-DISASSOCIATE.indication(34:e1:2d:14:e7:f9, 4)
Mon Nov 19 11:19:42 2018 daemon.debug hostapd: wlan0: STA 34:e1:2d:14:e7:f9 MLME: MLME-DELETEKEYS.request(34:e1:2d:14:e7:f9)
Mon Nov 19 11:19:43 2018 daemon.info hostapd: wlan0: STA 34:e1:2d:14:e7:f9 IEEE 802.11: deauthenticated due to inactivity (timer DEAUTH/REMOVE)
Mon Nov 19 11:19:43 2018 daemon.debug hostapd: wlan0: STA 34:e1:2d:14:e7:f9 MLME: MLME-DEAUTHENTICATE.indication(34:e1:2d:14:e7:f9, 2)
Mon Nov 19 11:19:43 2018 daemon.debug hostapd: wlan0: STA 34:e1:2d:14:e7:f9 MLME: MLME-DELETEKEYS.request(34:e1:2d:14:e7:f9)
Mon Nov 19 11:19:44 2018 daemon.notice hostapd: wlan0: AP-STA-DISCONNECTED 00:bb:60:a8:d5:18
Mon Nov 19 11:19:44 2018 daemon.info hostapd: wlan0: STA 00:bb:60:a8:d5:18 IEEE 802.11: disassociated due to inactivity
Mon Nov 19 11:19:44 2018 daemon.debug hostapd: wlan0: STA 00:bb:60:a8:d5:18 MLME: MLME-DISASSOCIATE.indication(00:bb:60:a8:d5:18, 4)
Mon Nov 19 11:19:44 2018 daemon.debug hostapd: wlan0: STA 00:bb:60:a8:d5:18 MLME: MLME-DELETEKEYS.request(00:bb:60:a8:d5:18)
Mon Nov 19 11:19:45 2018 daemon.info hostapd: wlan0: STA 00:bb:60:a8:d5:18 IEEE 802.11: deauthenticated due to inactivity (timer DEAUTH/REMOVE)
Mon Nov 19 11:19:45 2018 daemon.debug hostapd: wlan0: STA 00:bb:60:a8:d5:18 MLME: MLME-DEAUTHENTICATE.indication(00:bb:60:a8:d5:18, 2)
Mon Nov 19 11:19:45 2018 daemon.debug hostapd: wlan0: STA 00:bb:60:a8:d5:18 MLME: MLME-DELETEKEYS.request(00:bb:60:a8:d5:18)
Mon Nov 19 11:19:50 2018 daemon.notice hostapd: wlan0: AP-STA-DISCONNECTED f8:63:3f:96:70:a3
Mon Nov 19 11:19:50 2018 daemon.info hostapd: wlan0: STA f8:63:3f:96:70:a3 IEEE 802.11: disassociated due to inactivity
Mon Nov 19 11:19:50 2018 daemon.debug hostapd: wlan0: STA f8:63:3f:96:70:a3 MLME: MLME-DISASSOCIATE.indication(f8:63:3f:96:70:a3, 4)
Mon Nov 19 11:19:50 2018 daemon.debug hostapd: wlan0: STA f8:63:3f:96:70:a3 MLME: MLME-DELETEKEYS.request(f8:63:3f:96:70:a3)
Mon Nov 19 11:19:51 2018 daemon.info hostapd: wlan0: STA f8:63:3f:96:70:a3 IEEE 802.11: deauthenticated due to inactivity (timer DEAUTH/REMOVE)
Mon Nov 19 11:19:51 2018 daemon.debug hostapd: wlan0: STA f8:63:3f:96:70:a3 MLME: MLME-DEAUTHENTICATE.indication(f8:63:3f:96:70:a3, 2)
Mon Nov 19 11:19:51 2018 daemon.debug hostapd: wlan0: STA f8:63:3f:96:70:a3 MLME: MLME-DELETEKEYS.request(f8:63:3f:96:70:a3)
Mon Nov 19 12:02:39 2018 daemon.debug hostapd: wlan0: WPA GMK rekeyd
Mon Nov 19 12:02:39 2018 daemon.debug hostapd: wlan0: WPA rekeying GTK

nothing else. i do not know how to find there is a problem. can anybody help to resolve this?

2

Maybe I'm missing something in what you're seeing, but it looks like "normal" disassociation due to client inactivity. This is pretty common with battery-powered devices (phones, for example) that "turn off" active use of 802.11 when not sending data.

1 Like
3

the simultaneous disconnect of all clients (~30) due to their inactivity seems to me incredible.

4

Events even a second apart, not to mention several seconds apart, are not what many would consider "simultaneous" on a device with a clock speed in the hundreds of MHz.

Mon Nov 19 11:06:51 2018 daemon.notice hostapd: wlan0: AP-STA-DISCONNECTED f4:b7:e2:a4:16:2f
Mon Nov 19 11:07:09 2018 daemon.notice hostapd: wlan0: AP-STA-DISCONNECTED 50:a6:7f:a5:04:94
Mon Nov 19 11:13:54 2018 daemon.notice hostapd: wlan0: AP-STA-DISCONNECTED f4:b7:e2:a4:16:2f
Mon Nov 19 11:13:57 2018 daemon.notice hostapd: wlan0: AP-STA-DISCONNECTED 18:f0:e4:0f:f0:cc
Mon Nov 19 11:18:57 2018 daemon.notice hostapd: wlan0: AP-STA-DISCONNECTED 10:cd:b6:04:50:88
Mon Nov 19 11:19:02 2018 daemon.notice hostapd: wlan0: AP-STA-DISCONNECTED 20:82:c0:d4:d8:a3
Mon Nov 19 11:19:21 2018 daemon.notice hostapd: wlan0: AP-STA-DISCONNECTED 40:98:ad:e4:73:df
Mon Nov 19 11:19:25 2018 daemon.notice hostapd: wlan0: AP-STA-DISCONNECTED c0:ee:fb:db:8e:0f
Mon Nov 19 11:19:26 2018 daemon.notice hostapd: wlan0: AP-STA-DISCONNECTED a8:b8:6e:49:cf:f7
Mon Nov 19 11:19:31 2018 daemon.notice hostapd: wlan0: AP-STA-DISCONNECTED 9c:2e:a1:3c:c2:23
Mon Nov 19 11:19:36 2018 daemon.notice hostapd: wlan0: AP-STA-DISCONNECTED c0:ee:fb:25:6f:fe
Mon Nov 19 11:19:37 2018 daemon.notice hostapd: wlan0: AP-STA-DISCONNECTED 88:e9:fe:56:24:d6
Mon Nov 19 11:19:37 2018 daemon.notice hostapd: wlan0: AP-STA-DISCONNECTED 34:e1:2d:14:e7:1d
Mon Nov 19 11:19:39 2018 daemon.notice hostapd: wlan0: AP-STA-DISCONNECTED 78:4f:43:8e:c8:4a
Mon Nov 19 11:19:41 2018 daemon.notice hostapd: wlan0: AP-STA-DISCONNECTED c8:38:70:a1:44:7e
Mon Nov 19 11:19:41 2018 daemon.notice hostapd: wlan0: AP-STA-DISCONNECTED 6c:72:e7:4e:21:ac
Mon Nov 19 11:19:42 2018 daemon.notice hostapd: wlan0: AP-STA-DISCONNECTED 34:e1:2d:14:e7:f9
Mon Nov 19 11:19:44 2018 daemon.notice hostapd: wlan0: AP-STA-DISCONNECTED 00:bb:60:a8:d5:18
Mon Nov 19 11:19:50 2018 daemon.notice hostapd: wlan0: AP-STA-DISCONNECTED f8:63:3f:96:70:a3

Reading the associated log messages makes it very clear that most of what you're seeing is "due to inactivity"

Mon Nov 19 11:06:52 2018 daemon.info hostapd: wlan0: STA f4:b7:e2:a4:16:2f IEEE 802.11: deauthenticated due to inactivity (timer DEAUTH/REMOVE)
Mon Nov 19 11:07:10 2018 daemon.info hostapd: wlan0: STA 50:a6:7f:a5:04:94 IEEE 802.11: deauthenticated due to inactivity (timer DEAUTH/REMOVE)
Mon Nov 19 11:13:58 2018 daemon.info hostapd: wlan0: STA 18:f0:e4:0f:f0:cc IEEE 802.11: deauthenticated due to inactivity (timer DEAUTH/REMOVE)
Mon Nov 19 11:14:24 2018 daemon.info hostapd: wlan0: STA f4:b7:e2:a4:16:2f IEEE 802.11: deauthenticated due to inactivity (timer DEAUTH/REMOVE)
Mon Nov 19 11:18:58 2018 daemon.info hostapd: wlan0: STA 10:cd:b6:04:50:88 IEEE 802.11: deauthenticated due to inactivity (timer DEAUTH/REMOVE)
Mon Nov 19 11:19:03 2018 daemon.info hostapd: wlan0: STA 20:82:c0:d4:d8:a3 IEEE 802.11: deauthenticated due to inactivity (timer DEAUTH/REMOVE)
Mon Nov 19 11:19:22 2018 daemon.info hostapd: wlan0: STA 40:98:ad:e4:73:df IEEE 802.11: deauthenticated due to inactivity (timer DEAUTH/REMOVE)
Mon Nov 19 11:19:26 2018 daemon.info hostapd: wlan0: STA c0:ee:fb:db:8e:0f IEEE 802.11: deauthenticated due to inactivity (timer DEAUTH/REMOVE)
Mon Nov 19 11:19:27 2018 daemon.info hostapd: wlan0: STA a8:b8:6e:49:cf:f7 IEEE 802.11: deauthenticated due to inactivity (timer DEAUTH/REMOVE)
Mon Nov 19 11:19:32 2018 daemon.info hostapd: wlan0: STA 9c:2e:a1:3c:c2:23 IEEE 802.11: deauthenticated due to inactivity (timer DEAUTH/REMOVE)
Mon Nov 19 11:19:37 2018 daemon.info hostapd: wlan0: STA c0:ee:fb:25:6f:fe IEEE 802.11: deauthenticated due to inactivity (timer DEAUTH/REMOVE)
Mon Nov 19 11:19:38 2018 daemon.info hostapd: wlan0: STA 88:e9:fe:56:24:d6 IEEE 802.11: deauthenticated due to inactivity (timer DEAUTH/REMOVE)
Mon Nov 19 11:19:38 2018 daemon.info hostapd: wlan0: STA 34:e1:2d:14:e7:1d IEEE 802.11: deauthenticated due to inactivity (timer DEAUTH/REMOVE)
Mon Nov 19 11:19:40 2018 daemon.info hostapd: wlan0: STA 78:4f:43:8e:c8:4a IEEE 802.11: deauthenticated due to inactivity (timer DEAUTH/REMOVE)
Mon Nov 19 11:19:42 2018 daemon.info hostapd: wlan0: STA c8:38:70:a1:44:7e IEEE 802.11: deauthenticated due to inactivity (timer DEAUTH/REMOVE)
Mon Nov 19 11:19:42 2018 daemon.info hostapd: wlan0: STA 6c:72:e7:4e:21:ac IEEE 802.11: deauthenticated due to inactivity (timer DEAUTH/REMOVE)
Mon Nov 19 11:19:43 2018 daemon.info hostapd: wlan0: STA 34:e1:2d:14:e7:f9 IEEE 802.11: deauthenticated due to inactivity (timer DEAUTH/REMOVE)
Mon Nov 19 11:19:45 2018 daemon.info hostapd: wlan0: STA 00:bb:60:a8:d5:18 IEEE 802.11: deauthenticated due to inactivity (timer DEAUTH/REMOVE)
Mon Nov 19 11:19:51 2018 daemon.info hostapd: wlan0: STA f8:63:3f:96:70:a3 IEEE 802.11: deauthenticated due to inactivity (timer DEAUTH/REMOVE)