Beta 3.201 issue, logread shows many CTRL-EVENT-BEACON-LOSS

I have been trying out the 3.201 beta for the past several days on a GL-AR300M16. From time to time when I run logread I see a huge number of lines reading:

Mon Feb 15 09:42:28 2021 daemon.notice wpa_supplicant[2543]: wlan-sta: CTRL-EVENT-BEACON-LOSS

They seem to come out of the blue. I cannot figure out what is triggering them. Here is the output from today, as you can see, there was no other reported issue before they started:

Mon Feb 15 05:25:18 2021 daemon.notice netifd: wwan (2647): udhcpc: sending renew to 192.168.xx.x
Mon Feb 15 05:25:18 2021 daemon.notice netifd: wwan (2647): udhcpc: lease of 192.168.xx.x obtained, lease time 43200
Mon Feb 15 08:20:38 2021 daemon.info dnsmasq-dhcp[2443]: DHCPREQUEST(br-lan) 192.168.xx.x xx:xx:xx:xx:xx:xx
Mon Feb 15 08:20:38 2021 daemon.info dnsmasq-dhcp[2443]: DHCPACK(br-lan) 192.168.xx.x   xx:xx:xx:xx:xx:xx
Mon Feb 15 09:42:28 2021 daemon.notice wpa_supplicant[2543]: wlan-sta: CTRL-EVENT-BEACON-LOSS
Mon Feb 15 09:42:29 2021 daemon.notice wpa_supplicant[2543]: wlan-sta: CTRL-EVENT-BEACON-LOSS
Mon Feb 15 09:42:30 2021 daemon.notice wpa_supplicant[2543]: wlan-sta: CTRL-EVENT-BEACON-LOSS
Mon Feb 15 09:42:31 2021 daemon.notice wpa_supplicant[2543]: wlan-sta: CTRL-EVENT-BEACON-LOSS
Mon Feb 15 09:42:32 2021 daemon.notice wpa_supplicant[2543]: wlan-sta: CTRL-EVENT-BEACON-LOSS
Mon Feb 15 09:42:34 2021 daemon.notice wpa_supplicant[2543]: wlan-sta: CTRL-EVENT-BEACON-LOSS
Mon Feb 15 09:42:37 2021 daemon.notice wpa_supplicant[2543]: wlan-sta: CTRL-EVENT-BEACON-LOSS
Mon Feb 15 09:42:38 2021 daemon.notice wpa_supplicant[2543]: wlan-sta: CTRL-EVENT-BEACON-LOSS
Mon Feb 15 09:42:39 2021 daemon.notice wpa_supplicant[2543]: wlan-sta: CTRL-EVENT-BEACON-LOSS
Mon Feb 15 09:42:40 2021 daemon.notice wpa_supplicant[2543]: wlan-sta: CTRL-EVENT-BEACON-LOSS
Mon Feb 15 09:42:41 2021 daemon.notice wpa_supplicant[2543]: wlan-sta: CTRL-EVENT-BEACON-LOSS
Mon Feb 15 09:42:42 2021 daemon.notice wpa_supplicant[2543]: wlan-sta: CTRL-EVENT-BEACON-LOSS

… MANY MANY more lines!

There are several reports on the OpenWrt forum of a similar problem being reported from users of the 19.07 code, on different hardware. Here is one of the reports:

Searching the OpenWrt forum will show other users seeing the same issue.

There are times this message fully fills my log file! I down loaded the beta firmware from:
https://dl.gl-inet.com/firmware/snapshots/3.201_beta1/ar300m16/

Hopefully this issue can be fixed before you release the 3.201 firmware.

I filed a bug internally for this.

Please also rebase to use OpenWRT 19.07.6.

There is a critical dnsmasq fix included for .6