Repeated disassociations and disassoc_low_ack has no effect

Installing and Using OpenWrt Network and Wireless Configuration
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I am using a @davidc502 build of OpenWrt on my WRT1900ACS. One of the clients that connects is disconnected every 5 minutes with reason "disassociated due to inactivity" when it is not active (transferring data). I have unchecked 'Disassociate On Low Acknowledgement' (aka set disassoc_low_ack to 0) but nothing has changed.

Thu Jun 11 02:17:43 2020 daemon.info hostapd: wlan1: STA xx:xx:xx:xx:xx:xx IEEE 802.11: authenticated
Thu Jun 11 02:17:43 2020 daemon.info hostapd: wlan1: STA xx:xx:xx:xx:xx:xx IEEE 802.11: associated (aid 1)
Thu Jun 11 02:17:43 2020 daemon.notice hostapd: wlan1: AP-STA-CONNECTED xx:xx:xx:xx:xx:xx
Thu Jun 11 02:17:43 2020 daemon.info hostapd: wlan1: STA xx:xx:xx:xx:xx:xx WPA: pairwise key handshake completed (WPA)
Thu Jun 11 02:17:43 2020 daemon.info hostapd: wlan1: STA xx:xx:xx:xx:xx:xx WPA: group key handshake completed (WPA)
Thu Jun 11 02:22:57 2020 daemon.notice hostapd: wlan1: AP-STA-DISCONNECTED xx:xx:xx:xx:xx:xx
Thu Jun 11 02:22:57 2020 daemon.info hostapd: wlan1: STA xx:xx:xx:xx:xx:xx IEEE 802.11: disassociated due to inactivity

In disassoc_low_ack documentation it says "This depends on the driver capabilities and may not be available with all drivers."

Does anyone have that option working on a WRT1900ACS or similar router? I think next I will try increasing max_inactivity to 10 minutes to see if that setting has any effect.

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It seems like I have the same issue on Linksys WRT3200ACM, Im now on 21.02.0-rc3 and I think the issue started when I upgraded to 21.02 .

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I could read here Nest Protect disassociated due to inactivity - #6 that it could be related to DNSSEC, as I have stubby + dnsmasq for dns over SSL , I am thinking it could be related to that, so I changed the DNSSEC validation to enforced according to https://openwrt.org/docs/guide-user/services/dns/dot_dnsmasq_stubby
I still see disconnects in the logs.

I don't think this max_inactivity helps, otherwise, we could set it to 1 month if it has effects.

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I think this is the main issue, I am downgrading to 19.07 for now
Users needed to test Wi-Fi stability on Linksys WRT3200ACM & WRT32X on OpenWrt 21.02.0-rc3

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Wrt32x has same issue I downloaded and flashed a copy of openwrt 21.02 with drivers downgraded to that of 19.07 I believe and that fixed issues ....linksys has wifi open source driver issues

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Hi StreetRacer

Do you have a source for the 21.02 image with the 19.07 wifi drivers? Having the same issues and pulling my hair out trying to get my android devices to stay on the network

Thanks

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What's the procedure for manually downgrading the wifi drivers?