IEEE 802.11: Could not set STA to kernel driver

Hi,

I am using openwrt 19.07.04 on 2 tplink archer c6 installed as access points with 802.11r set up.

802.11r works pretty nice also with wpa2 enterprise, but occationally with my android10 smart phone I stick to the much weaker access point and then I see above message in the system.log of the stronger access point. Some threads I found, like e.g.

indicate that the sta_add implementation would be missing in the ath10kct driver, which is part of openwrt on archer c6:
packages installed include:

ath10k-firmware-qca9888-ct 2020-07-02-1
kmod-ath 4.14.195+4.19.137-1-2
kmod-ath10k-ct 4.14.195+2019-09-09-5e8cd86f-1
kmod-ath9k 4.14.195+4.19.137-1-2
kmod-ath9k-common 4.14.195+4.19.137-1-2

wpad 2019-08-08-ca8c2bd2-4
hostapd-common 2019-08-08-ca8c2bd2-4

The devices that sometimes cannot connect are android10 smart phones, the error message there says "access point temporarily full".

Is there any solution or workaround available to this in the meantime?

Excerpt from system.log:

Jan 10 16:44:18 191.167.78.55 hostapd: wlan1: STA 34:82:c5:2f:db:2f IEEE 8
02.11: Could not set STA to kernel driver
Jan 10 16:45:02 191.167.78.55 uhttpd[1157]: luci: accepted login on / for
root from 191.167.78.25
Jan 10 16:47:18 191.167.78.55 hostapd: wlan1: STA 34:82:c5:2f:db:2f IEEE 8
02.11: authenticated
Jan 10 16:47:24 191.167.78.55 hostapd: wlan1: STA 34:82:c5:2f:db:2f IEEE 8
02.11: authenticated
Jan 10 16:47:24 191.167.78.55 hostapd: wlan1: STA 34:82:c5:2f:db:2f IEEE 8
02.11: Could not set STA to kernel driver
Jan 10 16:47:31 191.167.78.55 hostapd: wlan1: STA 34:82:c5:2f:db:2f IEEE 8
02.11: authenticated
Jan 10 16:47:31 191.167.78.55 hostapd: wlan1: STA 34:82:c5:2f:db:2f IEEE 8
02.11: Could not set STA to kernel driver

Thank you, Stefan

Update:

Turning off 802.11w management frame protection solved the issue, as also indicated in

Also Windows 10 2004 only works with wpa2 enterprise if 802.11w is switched off:

https://social.technet.microsoft.com/Forums/de-DE/63756981-02ce-4cf5-80f8-2533c770bd4f/wpa2-enterprise-eaptls-wifi-verbindung-funktioniert-nach-update-auf-win10-version-2004-nicht-mehr?forum=win10itprogeneralDE

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