interisting, in G mode only, there are also tons of those missing ack messages but the connection is reliable.
My Android connects without those messages: 4c:0b:3a:85:55:3a
Sep 5 14:38:46 OpenWrt daemon.info hostapd: wlan0: STA d0:df:9a:46:3b:c9 WPA: pairwise key handshake completed (RSN) Sep 5 14:39:42 OpenWrt daemon.info hostapd: wlan0: STA 4c:0b:3a:85:55:3a WPA: group key handshake completed (RSN) Sep 5 14:39:42 OpenWrt daemon.info hostapd: wlan0: STA d0:df:9a:46:3b:c9 IEEE 802.11: disconnected due to excessive missing ACKs Sep 5 14:39:44 OpenWrt daemon.info hostapd: wlan0: STA d0:df:9a:46:3b:c9 IEEE 802.11: authenticated Sep 5 14:39:44 OpenWrt daemon.info hostapd: wlan0: STA d0:df:9a:46:3b:c9 IEEE 802.11: associated (aid 2) Sep 5 14:39:44 OpenWrt daemon.info hostapd: wlan0: STA d0:df:9a:46:3b:c9 WPA: pairwise key handshake completed (RSN) Sep 5 14:42:13 OpenWrt daemon.info hostapd: wlan0: STA d0:df:9a:46:3b:c9 IEEE 802.11: disconnected due to excessive missing ACKs Sep 5 14:42:15 OpenWrt daemon.info hostapd: wlan0: STA d0:df:9a:46:3b:c9 IEEE 802.11: authenticated Sep 5 14:42:15 OpenWrt daemon.info hostapd: wlan0: STA d0:df:9a:46:3b:c9 IEEE 802.11: associated (aid 2)
interisting, in G mode only, there are also tons of those missing ack messages but the connection is reliable.
My Android connects without those messages: 4c:0b:3a:85:55:3a
Sep 5 14:38:46 OpenWrt daemon.info hostapd: wlan0: STA d0:df:9a:46:3b:c9 WPA: pairwise key handshake completed (RSN)
Sep 5 14:39:42 OpenWrt daemon.info hostapd: wlan0: STA 4c:0b:3a:85:55:3a WPA: group key handshake completed (RSN)
Sep 5 14:39:42 OpenWrt daemon.info hostapd: wlan0: STA d0:df:9a:46:3b:c9 IEEE 802.11: disconnected due to excessive missing ACKs
Sep 5 14:39:44 OpenWrt daemon.info hostapd: wlan0: STA d0:df:9a:46:3b:c9 IEEE 802.11: authenticated
Sep 5 14:39:44 OpenWrt daemon.info hostapd: wlan0: STA d0:df:9a:46:3b:c9 IEEE 802.11: associated (aid 2)
Sep 5 14:39:44 OpenWrt daemon.info hostapd: wlan0: STA d0:df:9a:46:3b:c9 WPA: pairwise key handshake completed (RSN)
Sep 5 14:42:13 OpenWrt daemon.info hostapd: wlan0: STA d0:df:9a:46:3b:c9 IEEE 802.11: disconnected due to excessive missing ACKs
Sep 5 14:42:15 OpenWrt daemon.info hostapd: wlan0: STA d0:df:9a:46:3b:c9 IEEE 802.11: authenticated
Sep 5 14:42:15 OpenWrt daemon.info hostapd: wlan0: STA d0:df:9a:46:3b:c9 IEEE 802.11: associated (aid 2)