I am running the OpenWrt version SNAPSHOT r18801-56256259a1 / LuCI Master git-22.025.79016-22e2bfb I noticed a problem, if I choose channel 36 manually in the web interface after saving the settings it appears to me that it is channel 40!
Yes i know it's a problem with this, for me all the devices are connected, the problem is that channel 36 doesn't show me correctly !
I thought it was good to report the problem with the logs, we must somehow avoid using certain configurations, my opinion that we should use the driver that is updated and we need found a solution for this problem!
Here's an interesting thing, I activated Force 40MHz mode
Always use 40MHz channels even if the secondary channel overlaps. Using this option does not comply with IEEE 802.11n-2009! and keep my channel 36 !
OpenWrt SNAPSHOT, r18801-56256259a1
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root@OpenWrt:~# logread -f
Mon Feb 14 21:14:42 2022 daemon.notice hostapd: Remove interface 'wlan0'
Mon Feb 14 21:14:42 2022 daemon.notice hostapd: wlan0: interface state ENABLED->DISABLED
Mon Feb 14 21:14:42 2022 daemon.notice hostapd: wlan0: AP-STA-DISCONNECTED
Mon Feb 14 21:14:42 2022 daemon.notice hostapd: wlan0: AP-STA-DISCONNECTED
Mon Feb 14 21:14:42 2022 daemon.notice hostapd: wlan0: AP-DISABLED
Mon Feb 14 21:14:42 2022 daemon.notice hostapd: wlan0: CTRL-EVENT-TERMINATING
Mon Feb 14 21:14:42 2022 daemon.err hostapd: rmdir[ctrl_interface=/var/run/hostapd]: Permission denied
Mon Feb 14 21:14:42 2022 daemon.notice hostapd: nl80211: deinit ifname=wlan0 disabled_11b_rates=0
Mon Feb 14 21:14:42 2022 kern.info kernel: [41413.233550] device wlan0 left promiscuous mode
Mon Feb 14 21:14:42 2022 kern.info kernel: [41413.238099] br-lan: port 6(wlan0) entered disabled state
Mon Feb 14 21:14:42 2022 daemon.notice netifd: Network device 'wlan0' link is down
Mon Feb 14 21:14:42 2022 kern.debug kernel: [41413.441377] ieee80211 phy0: change: 0x40
Mon Feb 14 21:14:42 2022 kern.debug kernel: [41413.506350] ieee80211 phy0: change: 0x100
Mon Feb 14 21:14:42 2022 daemon.warn dnsmasq[1]: failed to create listening socket for fe80::1%pppoe-wan: Address not availab le
Mon Feb 14 21:14:42 2022 daemon.warn dnsmasq[1]: failed to create listening socket for fe80::1%pppoe-wan: Address not availab le
Mon Feb 14 21:14:42 2022 daemon.notice netifd: Wireless device 'radio0' is now down
Mon Feb 14 21:14:43 2022 daemon.notice hostapd: Configuration file: /var/run/hostapd-phy0.conf (phy wlan0) --> new PHY
Mon Feb 14 21:14:44 2022 kern.debug kernel: [41414.942341] ieee80211 phy0: change: 0xffffffff
Mon Feb 14 21:14:44 2022 kern.info kernel: [41415.020114] br-lan: port 6(wlan0) entered blocking state
Mon Feb 14 21:14:44 2022 kern.info kernel: [41415.025464] br-lan: port 6(wlan0) entered disabled state
Mon Feb 14 21:14:44 2022 kern.info kernel: [41415.030956] device wlan0 entered promiscuous mode
Mon Feb 14 21:14:44 2022 kern.info kernel: [41415.035739] br-lan: port 6(wlan0) entered blocking state
Mon Feb 14 21:14:44 2022 kern.info kernel: [41415.041088] br-lan: port 6(wlan0) entered forwarding state
Mon Feb 14 21:14:44 2022 daemon.notice hostapd: wlan0: interface state UNINITIALIZED->COUNTRY_UPDATE
Mon Feb 14 21:14:44 2022 kern.info kernel: [41415.048219] br-lan: port 6(wlan0) entered disabled state
Mon Feb 14 21:14:45 2022 daemon.notice netifd: Wireless device 'radio0' is now up
Mon Feb 14 21:14:49 2022 daemon.notice hostapd: wlan0: interface state COUNTRY_UPDATE->HT_SCAN
Mon Feb 14 21:14:49 2022 kern.debug kernel: [41420.054326] ieee80211 phy0: change: 0x100
Mon Feb 14 21:14:49 2022 kern.debug kernel: [41420.063587] ieee80211 phy0: change: 0x40
Mon Feb 14 21:14:49 2022 kern.debug kernel: [41420.246207] ieee80211 phy0: change: 0x40
Mon Feb 14 21:14:49 2022 daemon.notice hostapd: Switch own primary and secondary channel to get secondary channel with no Bea cons from other BSSes
Mon Feb 14 21:14:49 2022 kern.debug kernel: [41420.436212] ieee80211 phy0: change: 0x100
Mon Feb 14 21:14:49 2022 kern.debug kernel: [41420.464581] ieee80211 phy0: change: 0x100
Mon Feb 14 21:14:49 2022 kern.debug kernel: [41420.473228] ieee80211 phy0: change: 0x42
Mon Feb 14 21:14:49 2022 kern.info kernel: [41420.608250] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
Mon Feb 14 21:14:49 2022 kern.info kernel: [41420.614713] br-lan: port 6(wlan0) entered blocking state
Mon Feb 14 21:14:49 2022 kern.info kernel: [41420.620061] br-lan: port 6(wlan0) entered forwarding state
Mon Feb 14 21:14:49 2022 daemon.notice netifd: Network device 'wlan0' link is up
Mon Feb 14 21:14:49 2022 daemon.notice hostapd: wlan0: interface state HT_SCAN->ENABLED
Mon Feb 14 21:14:49 2022 daemon.notice hostapd: wlan0: AP-ENABLED
Mon Feb 14 21:14:49 2022 daemon.info hostapd: wlan0: STA IEEE 802.11: authenticated
Mon Feb 14 21:14:51 2022 daemon.warn dnsmasq[1]: failed to create listening socket for fe80::1%pppoe-wan: Address not availab le
Mon Feb 14 21:14:51 2022 daemon.warn dnsmasq[1]: failed to create listening socket for fe80::1%pppoe-wan: Address not availab le
Mon Feb 14 21:15:04 2022 daemon.info hostapd: wlan0: STA IEEE 802.11: authenticated
Mon Feb 14 21:15:04 2022 daemon.notice hostapd: wlan0: STA-OPMODE-N_SS-CHANGED 2
Mon Feb 14 21:15:04 2022 daemon.info hostapd: wlan0: STA IEEE 802.11: associated (aid 1)
Mon Feb 14 21:15:04 2022 daemon.notice hostapd: wlan0: AP-STA-CONNECTED
Mon Feb 14 21:15:04 2022 daemon.info hostapd: wlan0: STA WPA: pairwise key handshake completed (RSN)
Mon Feb 14 21:15:04 2022 daemon.notice hostapd: wlan0: EAPOL-4WAY-HS-COMPLETED
Mon Feb 14 21:15:05 2022 daemon.info dnsmasq-dhcp[1]: DHCPREQUEST(br-lan) 192.168.1.235
Mon Feb 14 21:15:05 2022 daemon.info dnsmasq-dhcp[1]: DHCPACK(br-lan) 192.168.1.235 HUAWEI_Mate_10_Pro-9989 80
Mon Feb 14 21:15:05 2022 daemon.info dnsmasq-dhcp[1]: DHCPREQUEST(br-lan) 192.168.1.235
Mon Feb 14 21:15:05 2022 daemon.info dnsmasq-dhcp[1]: DHCPACK(br-lan) 192.168.1.235 HUAWEI_Mate_10_Pro-9989 80
Mon Feb 14 21:15:07 2022 kern.debug kernel: [41438.782148] ieee80211 phy0: Mac80211 start BA
Mon Feb 14 21:15:55 2022 daemon.warn dnsmasq[1]: failed to create listening socket for fe80::1%pppoe-wan: Address not availab le
Mon Feb 14 21:15:55 2022 daemon.warn dnsmasq[1]: failed to create listening socket for fe80::1%pppoe-wan: Address not availab le
Mon Feb 14 21:20:55 2022 daemon.warn dnsmasq[1]: failed to create listening socket for fe80::1%pppoe-wan: Address not availab le
Mon Feb 14 21:20:55 2022 daemon.warn dnsmasq[1]: failed to create listening socket for fe80::1%pppoe-wan: Address not availab le
Mon Feb 14 21:22:46 2022 daemon.notice hostapd: Remove interface 'wlan0'
Mon Feb 14 21:22:46 2022 daemon.notice hostapd: wlan0: interface state ENABLED->DISABLED
Mon Feb 14 21:22:46 2022 daemon.notice hostapd: wlan0: AP-STA-DISCONNECTED
Mon Feb 14 21:22:46 2022 daemon.notice hostapd: wlan0: AP-DISABLED
Mon Feb 14 21:22:46 2022 daemon.notice hostapd: wlan0: CTRL-EVENT-TERMINATING
Mon Feb 14 21:22:46 2022 daemon.err hostapd: rmdir[ctrl_interface=/var/run/hostapd]: Permission denied
Mon Feb 14 21:22:46 2022 daemon.notice hostapd: nl80211: deinit ifname=wlan0 disabled_11b_rates=0
Mon Feb 14 21:22:46 2022 kern.info kernel: [41897.671206] device wlan0 left promiscuous mode
Mon Feb 14 21:22:46 2022 kern.info kernel: [41897.675840] br-lan: port 6(wlan0) entered disabled state
Mon Feb 14 21:22:46 2022 daemon.notice netifd: Network device 'wlan0' link is down
Mon Feb 14 21:22:47 2022 kern.debug kernel: [41897.833180] ieee80211 phy0: change: 0x40
Mon Feb 14 21:22:47 2022 kern.debug kernel: [41897.899204] ieee80211 phy0: change: 0x100
Mon Feb 14 21:22:47 2022 daemon.warn dnsmasq[1]: failed to create listening socket for fe80::1%pppoe-wan: Address not available
Mon Feb 14 21:22:47 2022 daemon.warn dnsmasq[1]: failed to create listening socket for fe80::1%pppoe-wan: Address not available
Mon Feb 14 21:22:47 2022 daemon.notice netifd: Wireless device 'radio0' is now down
Mon Feb 14 21:22:48 2022 daemon.notice hostapd: Configuration file: /var/run/hostapd-phy0.conf (phy wlan0) --> new PHY
Mon Feb 14 21:22:48 2022 kern.debug kernel: [41899.323151] ieee80211 phy0: change: 0xffffffff
Mon Feb 14 21:22:48 2022 kern.info kernel: [41899.398969] br-lan: port 6(wlan0) entered blocking state
Mon Feb 14 21:22:48 2022 kern.info kernel: [41899.404324] br-lan: port 6(wlan0) entered disabled state
Mon Feb 14 21:22:48 2022 kern.info kernel: [41899.409822] device wlan0 entered promiscuous mode
Mon Feb 14 21:22:48 2022 daemon.notice hostapd: wlan0: interface state UNINITIALIZED->COUNTRY_UPDATE
Mon Feb 14 21:22:49 2022 daemon.notice netifd: Wireless device 'radio0' is now up
Mon Feb 14 21:22:53 2022 daemon.notice hostapd: wlan0: interface state COUNTRY_UPDATE->HT_SCAN
Mon Feb 14 21:22:53 2022 kern.debug kernel: [41904.416302] ieee80211 phy0: change: 0x100
Mon Feb 14 21:22:53 2022 kern.debug kernel: [41904.425345] ieee80211 phy0: change: 0x40
Mon Feb 14 21:22:53 2022 kern.debug kernel: [41904.616018] ieee80211 phy0: change: 0x40
Mon Feb 14 21:22:53 2022 daemon.notice hostapd: Switch own primary and secondary channel to get secondary channel with no Beacons from other BSSes
Mon Feb 14 21:22:53 2022 kern.debug kernel: [41904.796022] ieee80211 phy0: change: 0x100
Mon Feb 14 21:22:54 2022 kern.debug kernel: [41904.824566] ieee80211 phy0: change: 0x100
Mon Feb 14 21:22:54 2022 kern.debug kernel: [41904.833029] ieee80211 phy0: change: 0x42
Mon Feb 14 21:22:54 2022 kern.info kernel: [41904.968063] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
Mon Feb 14 21:22:54 2022 kern.info kernel: [41904.974521] br-lan: port 6(wlan0) entered blocking state
Mon Feb 14 21:22:54 2022 kern.info kernel: [41904.979868] br-lan: port 6(wlan0) entered forwarding state
Mon Feb 14 21:22:54 2022 daemon.notice netifd: Network device 'wlan0' link is up
Mon Feb 14 21:22:54 2022 daemon.notice hostapd: wlan0: interface state HT_SCAN->ENABLED
Mon Feb 14 21:22:54 2022 daemon.notice hostapd: wlan0: AP-ENABLED
Mon Feb 14 21:22:55 2022 daemon.warn dnsmasq[1]: failed to create listening socket for fe80::1%pppoe-wan: Address not available
Mon Feb 14 21:22:55 2022 daemon.warn dnsmasq[1]: failed to create listening socket for fe80::1%pppoe-wan: Address not available
Mon Feb 14 21:23:20 2022 daemon.info hostapd: wlan0: STA IEEE 802.11: authenticated
Mon Feb 14 21:23:20 2022 daemon.notice hostapd: wlan0: STA-OPMODE-N_SS-CHANGED 2
Mon Feb 14 21:23:20 2022 daemon.info hostapd: wlan0: STA IEEE 802.11: associated (aid 1)
Mon Feb 14 21:23:20 2022 daemon.notice hostapd: wlan0: AP-STA-CONNECTED
Mon Feb 14 21:23:20 2022 daemon.info hostapd: wlan0: STA WPA: pairwise key handshake completed (RSN)
Mon Feb 14 21:23:20 2022 daemon.notice hostapd: wlan0: EAPOL-4WAY-HS-COMPLETED
Mon Feb 14 21:23:20 2022 daemon.info dnsmasq-dhcp[1]: DHCPREQUEST(br-lan) 192.168.1.235
Mon Feb 14 21:23:20 2022 daemon.info dnsmasq-dhcp[1]: DHCPACK(br-lan) 192.168.1.235 HUAWEI_Mate_10_Pro-998980
Mon Feb 14 21:23:20 2022 daemon.info dnsmasq-dhcp[1]: DHCPREQUEST(br-lan) 192.168.1.235
Mon Feb 14 21:23:20 2022 daemon.info dnsmasq-dhcp[1]: DHCPACK(br-lan) 192.168.1.235 HUAWEI_Mate_10_Pro-998980
Mon Feb 14 21:23:22 2022 kern.debug kernel: [41933.178853] ieee80211 phy0: Mac80211 start BA
Mon Feb 14 21:24:04 2022 daemon.notice hostapd: Remove interface 'wlan0'
Mon Feb 14 21:24:04 2022 daemon.notice hostapd: wlan0: interface state ENABLED->DISABLED
Mon Feb 14 21:24:04 2022 daemon.notice hostapd: wlan0: AP-STA-DISCONNECTED
Mon Feb 14 21:24:04 2022 daemon.notice hostapd: wlan0: AP-DISABLED
Mon Feb 14 21:24:04 2022 daemon.notice hostapd: wlan0: CTRL-EVENT-TERMINATING
Mon Feb 14 21:24:04 2022 daemon.err hostapd: rmdir[ctrl_interface=/var/run/hostapd]: Permission denied
Mon Feb 14 21:24:04 2022 daemon.notice hostapd: nl80211: deinit ifname=wlan0 disabled_11b_rates=0
Mon Feb 14 21:24:04 2022 kern.info kernel: [41975.269812] device wlan0 left promiscuous mode
Mon Feb 14 21:24:04 2022 kern.info kernel: [41975.274335] br-lan: port 6(wlan0) entered disabled state
Mon Feb 14 21:24:04 2022 daemon.notice netifd: Network device 'wlan0' link is down
Mon Feb 14 21:24:04 2022 kern.debug kernel: [41975.441546] ieee80211 phy0: change: 0x40
Mon Feb 14 21:24:04 2022 kern.debug kernel: [41975.507559] ieee80211 phy0: change: 0x100
Mon Feb 14 21:24:04 2022 daemon.warn dnsmasq[1]: failed to create listening socket for fe80::1%pppoe-wan: Address not available
Mon Feb 14 21:24:04 2022 daemon.warn dnsmasq[1]: failed to create listening socket for fe80::1%pppoe-wan: Address not available
Mon Feb 14 21:24:04 2022 daemon.notice netifd: Wireless device 'radio0' is now down
Mon Feb 14 21:24:05 2022 daemon.notice hostapd: Configuration file: /var/run/hostapd-phy0.conf (phy wlan0) --> new PHY
Mon Feb 14 21:24:06 2022 kern.debug kernel: [41976.930523] ieee80211 phy0: change: 0xffffffff
Mon Feb 14 21:24:06 2022 kern.info kernel: [41977.008214] br-lan: port 6(wlan0) entered blocking state
Mon Feb 14 21:24:06 2022 kern.info kernel: [41977.013554] br-lan: port 6(wlan0) entered disabled state
Mon Feb 14 21:24:06 2022 kern.info kernel: [41977.019042] device wlan0 entered promiscuous mode
Mon Feb 14 21:24:06 2022 kern.info kernel: [41977.023821] br-lan: port 6(wlan0) entered blocking state
Mon Feb 14 21:24:06 2022 kern.info kernel: [41977.029164] br-lan: port 6(wlan0) entered forwarding state
Mon Feb 14 21:24:06 2022 daemon.notice hostapd: wlan0: interface state UNINITIALIZED->COUNTRY_UPDATE
Mon Feb 14 21:24:06 2022 kern.info kernel: [41977.035305] br-lan: port 6(wlan0) entered disabled state
Mon Feb 14 21:24:07 2022 daemon.notice netifd: Wireless device 'radio0' is now up
Mon Feb 14 21:24:11 2022 kern.debug kernel: [41982.069685] ieee80211 phy0: change: 0x100
Mon Feb 14 21:24:11 2022 kern.debug kernel: [41982.078719] ieee80211 phy0: change: 0x42
Mon Feb 14 21:24:11 2022 kern.info kernel: [41982.212422] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
Mon Feb 14 21:24:11 2022 kern.info kernel: [41982.218898] br-lan: port 6(wlan0) entered blocking state
Mon Feb 14 21:24:11 2022 kern.info kernel: [41982.224236] br-lan: port 6(wlan0) entered forwarding state
Mon Feb 14 21:24:11 2022 daemon.notice netifd: Network device 'wlan0' link is up
Mon Feb 14 21:24:11 2022 daemon.notice hostapd: wlan0: interface state COUNTRY_UPDATE->ENABLED
Mon Feb 14 21:24:11 2022 daemon.notice hostapd: wlan0: AP-ENABLED
Mon Feb 14 21:24:13 2022 daemon.warn dnsmasq[1]: failed to create listening socket for fe80::1%pppoe-wan: Address not available
Mon Feb 14 21:24:13 2022 daemon.warn dnsmasq[1]: failed to create listening socket for fe80::1%pppoe-wan: Address not available
Mon Feb 14 21:24:19 2022 daemon.info hostapd: wlan0: STA IEEE 802.11: authenticated
Mon Feb 14 21:24:19 2022 daemon.notice hostapd: wlan0: STA-OPMODE-N_SS-CHANGED 2
Mon Feb 14 21:24:19 2022 daemon.info hostapd: wlan0: STA IEEE 802.11: associated (aid 1)
Mon Feb 14 21:24:19 2022 daemon.notice hostapd: wlan0: AP-STA-CONNECTED
Mon Feb 14 21:24:19 2022 daemon.info hostapd: wlan0: STA WPA: pairwise key handshake completed (RSN)
Mon Feb 14 21:24:19 2022 daemon.notice hostapd: wlan0: EAPOL-4WAY-HS-COMPLETED
Mon Feb 14 21:24:19 2022 daemon.info dnsmasq-dhcp[1]: DHCPREQUEST(br-lan) 192.168.1.235
Mon Feb 14 21:24:19 2022 daemon.info dnsmasq-dhcp[1]: DHCPACK(br-lan) 192.168.1.235 HUAWEI_Mate_10_Pro-998980
Mon Feb 14 21:24:19 2022 daemon.info dnsmasq-dhcp[1]: DHCPREQUEST(br-lan) 192.168.1.235
Mon Feb 14 21:24:19 2022 daemon.info dnsmasq-dhcp[1]: DHCPACK(br-lan) 192.168.1.235 HUAWEI_Mate_10_Pro-998980
Mon Feb 14 21:24:21 2022 kern.debug kernel: [41992.492504] ieee80211 phy0: Mac80211 start BA
Mon Feb 14 21:25:55 2022 daemon.warn dnsmasq[1]: failed to create listening socket for fe80::1%pppoe-wan: Address not available
Mon Feb 14 21:25:55 2022 daemon.warn dnsmasq[1]: failed to create listening socket for fe80::1%pppoe-wan: Address not available
Mon Feb 14 21:26:00 2022 daemon.notice hostapd: Remove interface 'wlan0'
Mon Feb 14 21:26:00 2022 daemon.notice hostapd: wlan0: interface state ENABLED->DISABLED
Mon Feb 14 21:26:00 2022 daemon.notice hostapd: wlan0: AP-STA-DISCONNECTED
Mon Feb 14 21:26:00 2022 daemon.notice hostapd: wlan0: AP-DISABLED
Mon Feb 14 21:26:00 2022 daemon.notice hostapd: wlan0: CTRL-EVENT-TERMINATING
Mon Feb 14 21:26:00 2022 daemon.err hostapd: rmdir[ctrl_interface=/var/run/hostapd]: Permission denied
Mon Feb 14 21:26:00 2022 daemon.notice hostapd: nl80211: deinit ifname=wlan0 disabled_11b_rates=0
Mon Feb 14 21:26:00 2022 kern.info kernel: [42091.619091] device wlan0 left promiscuous mode
Mon Feb 14 21:26:00 2022 kern.info kernel: [42091.623638] br-lan: port 6(wlan0) entered disabled state
Mon Feb 14 21:26:00 2022 daemon.notice netifd: Network device 'wlan0' link is down
Mon Feb 14 21:26:00 2022 kern.debug kernel: [42091.759096] ieee80211 phy0: change: 0x40
Mon Feb 14 21:26:01 2022 kern.debug kernel: [42091.825109] ieee80211 phy0: change: 0x100
Mon Feb 14 21:26:01 2022 daemon.warn dnsmasq[1]: failed to create listening socket for fe80::1%pppoe-wan: Address not available
Mon Feb 14 21:26:01 2022 daemon.warn dnsmasq[1]: failed to create listening socket for fe80::1%pppoe-wan: Address not available
Mon Feb 14 21:26:01 2022 daemon.notice netifd: Wireless device 'radio0' is now down
Mon Feb 14 21:26:02 2022 daemon.notice hostapd: Configuration file: /var/run/hostapd-phy0.conf (phy wlan0) --> new PHY
Mon Feb 14 21:26:02 2022 kern.debug kernel: [42093.249057] ieee80211 phy0: change: 0xffffffff
Mon Feb 14 21:26:02 2022 kern.info kernel: [42093.324815] br-lan: port 6(wlan0) entered blocking state
Mon Feb 14 21:26:02 2022 kern.info kernel: [42093.330165] br-lan: port 6(wlan0) entered disabled state
Mon Feb 14 21:26:02 2022 kern.info kernel: [42093.335662] device wlan0 entered promiscuous mode
Mon Feb 14 21:26:02 2022 kern.info kernel: [42093.340475] br-lan: port 6(wlan0) entered blocking state
Mon Feb 14 21:26:02 2022 kern.info kernel: [42093.345826] br-lan: port 6(wlan0) entered forwarding state
Mon Feb 14 21:26:02 2022 daemon.notice hostapd: wlan0: interface state UNINITIALIZED->COUNTRY_UPDATE
Mon Feb 14 21:26:02 2022 kern.info kernel: [42093.352850] br-lan: port 6(wlan0) entered disabled state
Mon Feb 14 21:26:03 2022 daemon.notice netifd: Wireless device 'radio0' is now up
Mon Feb 14 21:26:07 2022 kern.debug kernel: [42098.387113] ieee80211 phy0: change: 0x100
Mon Feb 14 21:26:07 2022 kern.debug kernel: [42098.396144] ieee80211 phy0: change: 0x42
Mon Feb 14 21:26:07 2022 kern.info kernel: [42098.529023] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
Mon Feb 14 21:26:07 2022 kern.info kernel: [42098.535499] br-lan: port 6(wlan0) entered blocking state
Mon Feb 14 21:26:07 2022 kern.info kernel: [42098.540838] br-lan: port 6(wlan0) entered forwarding state
Mon Feb 14 21:26:07 2022 daemon.notice netifd: Network device 'wlan0' link is up
Mon Feb 14 21:26:07 2022 daemon.notice hostapd: wlan0: interface state COUNTRY_UPDATE->ENABLED
Mon Feb 14 21:26:07 2022 daemon.notice hostapd: wlan0: AP-ENABLED
Mon Feb 14 21:26:09 2022 daemon.warn dnsmasq[1]: failed to create listening socket for fe80::1%pppoe-wan: Address not available
Mon Feb 14 21:26:09 2022 daemon.warn dnsmasq[1]: failed to create listening socket for fe80::1%pppoe-wan: Address not available
Now everything seems fine, I did not notice any disconnections, the only problem mentioned above !
after 4 hours of trouble-free operation 5Ghz I decided to deactivate again "Always use 40MHz channels even if the secondary channel overlaps" surprise now displays channel 36 correctly,
I rebooted the router twice to see if the problem persists, it looks like everything is working fine with all the settings above..
a remark, on 2.4ghz choose channel 1 better performance, at least for me!