I'm having problem where where iOS devices cannot reconnect to the Wifi .
Using WPA-2 with 802.11r .
Fri Jul 28 21:16:01 2017 daemon.info hostapd: wlan1: STA 74:e2:f5:c0:01:a9 IEEE 802.11: authenticated
Fri Jul 28 21:16:01 2017 daemon.info hostapd: wlan1: STA 74:e2:f5:c0:01:a9 IEEE 802.11: associated (aid 2)
Fri Jul 28 21:16:03 2017 daemon.info hostapd: wlan1: STA 74:e2:f5:c0:01:a9 IEEE 802.11: disassociated
Fri Jul 28 21:16:04 2017 daemon.info hostapd: wlan1: STA 74:e2:f5:c0:01:a9 IEEE 802.11: deauthenticated due to inactivity (timer DEAUTH/REMOVE)
Fri Jul 28 21:16:28 2017 daemon.notice hostapd: wlan0: AP-STA-DISCONNECTED b0:48:1a:82:ae:4d
Fri Jul 28 21:16:28 2017 daemon.info hostapd: wlan0: STA b0:48:1a:82:ae:4d IEEE 802.11: disassociated
Fri Jul 28 21:16:29 2017 daemon.info hostapd: wlan0: STA b0:48:1a:82:ae:4d IEEE 802.11: deauthenticated due to inactivity (timer DEAUTH/REMOVE)
Fri Jul 28 21:16:40 2017 daemon.info hostapd: wlan1: STA 74:e2:f5:c0:01:a9 IEEE 802.11: authenticated
Fri Jul 28 21:16:40 2017 daemon.info hostapd: wlan1: STA 74:e2:f5:c0:01:a9 IEEE 802.11: associated (aid 2)
Fri Jul 28 21:16:47 2017 daemon.info hostapd: wlan0-1: STA 74:e2:f5:c0:01:a9 IEEE 802.11: authenticated
Fri Jul 28 21:16:47 2017 daemon.info hostapd: wlan0-1: STA 74:e2:f5:c0:01:a9 IEEE 802.11: associated (aid 1)
Fri Jul 28 21:16:51 2017 daemon.info hostapd: wlan0: STA 74:e2:f5:c0:01:a9 IEEE 802.11: authenticated
Fri Jul 28 21:16:51 2017 daemon.info hostapd: wlan0: STA 74:e2:f5:c0:01:a9 IEEE 802.11: associated (aid 1)
Fri Jul 28 21:16:58 2017 daemon.info hostapd: wlan0: STA 74:e2:f5:c0:01:a9 IEEE 802.11: authenticated
Fri Jul 28 21:16:58 2017 daemon.info hostapd: wlan0: STA 74:e2:f5:c0:01:a9 IEEE 802.11: associated (aid 1)
Fri Jul 28 21:17:03 2017 daemon.info hostapd: wlan0-1: STA 74:e2:f5:c0:01:a9 IEEE 802.11: authenticated
Fri Jul 28 21:17:03 2017 daemon.info hostapd: wlan0-1: STA 74:e2:f5:c0:01:a9 IEEE 802.11: associated (aid 1)
Fri Jul 28 21:18:28 2017 daemon.info hostapd: wlan0-1: STA 74:e2:f5:c0:01:a9 IEEE 802.11: authenticated
Fri Jul 28 21:18:28 2017 daemon.info hostapd: wlan0-1: STA 74:e2:f5:c0:01:a9 IEEE 802.11: associated (aid 1)
** After powering off and on iPad, it connects.
Fri Jul 28 21:18:28 2017 daemon.notice hostapd: wlan0-1: AP-STA-CONNECTED 74:e2:f5:c0:01:a9
Fri Jul 28 21:18:28 2017 daemon.info hostapd: wlan0-1: STA 74:e2:f5:c0:01:a9 RADIUS: starting accounting session DE90A5A029C4B217
Fri Jul 28 21:18:28 2017 daemon.info hostapd: wlan0-1: STA 74:e2:f5:c0:01:a9 WPA: pairwise key handshake completed (RSN)
Fri Jul 28 21:19:08 2017 daemon.info hostapd: wlan1: STA c4:9a:02:7a:4f:a2 WPA: group key handshake completed (RSN)