PowerBeam M2-400 отключить group key handshake

[KosKa]

Доброго времени суток! Логи на Access Point "завалены" ежечасными сообщениями:
Sep 1 00:15:19 hostapd: ath0: STA 78:---------------- WPA: group key handshake completed (RSN)
Sep 1 01:15:19 hostapd: ath0: STA 78:---------------- WPA: group key handshake completed (RSN)
Sep 1 02:15:19 hostapd: ath0: STA 78:---------------- WPA: group key handshake completed (RSN)
Sep 1 03:15:19 hostapd: ath0: STA 78:---------------- WPA: group key handshake completed (RSN)
Sep 1 04:15:19 hostapd: ath0: STA 78:---------------- WPA: group key handshake completed (RSN)
Sep 1 05:15:19 hostapd: ath0: STA 78:---------------- WPA: group key handshake completed (RSN)
Sep 1 06:15:19 hostapd: ath0: STA 78:---------------- WPA: group key handshake completed (RSN)
Sep 1 07:15:19 hostapd: ath0: STA 78:---------------- WPA: group key handshake completed (RSN)
Sep 1 08:15:19 hostapd: ath0: STA 78:---------------- WPA: group key handshake completed (RSN)
Как это отключить?
Основные настройки в приложенном файле.
Спасибо!