Need help troubleshooting 5GHz radio crash on high bandwidth downloads with Zyxel NBG6817 on 21.02

Installing and Using OpenWrt Network and Wireless Configuration
1

Hi friends,

I have a consistent issue with the 5gz radio on my Zyxel NBG6817 Wi-Fi on 21.02 where if I initiate any high bandwidth download on the 5ghz interface, after a while, the interface crashes completely, ceasing to advertise it's SSID and dropping all connections. After which the radio appears in Lucy as the following:

Qualcomm Atheros QCA9984 802.11nac
Channel: 36 (5.180 GHz) | Bitrate: ? Mbit/s

The only remedy for this issue is to initiate a reboot. Attempting to restart just the radio interface does not bring the radio back online. The radio remains stable under all other conditions except when downloading games via Steam or other sources.

Any wisdom the community can provide me on issues like this would be greatly appreciated!
Below are the recent logs from my router:

System

Mon Oct 25 20:21:12 2021 kern.warn kernel: [   80.397019] ath10k_pci 0001:01:00.0: Invalid VHT mcs 15 peer stats
Mon Oct 25 20:21:22 2021 daemon.info hostapd: 5G: STA f0:77:c3:e5:2d:4c IEEE 802.11: authenticated
Mon Oct 25 20:21:22 2021 daemon.info hostapd: 5G: STA f0:77:c3:e5:2d:4c IEEE 802.11: associated (aid 2)
Mon Oct 25 20:21:22 2021 daemon.notice hostapd: 5G: AP-STA-CONNECTED f0:77:c3:e5:2d:4c
Mon Oct 25 20:21:22 2021 daemon.info hostapd: 5G: STA f0:77:c3:e5:2d:4c WPA: pairwise key handshake completed (RSN)
Mon Oct 25 20:21:22 2021 daemon.info dnsmasq-dhcp[4425]: DHCPREQUEST(br-lan) 192.168.1.214 f0:77:c3:e5:2d:4c
Mon Oct 25 20:21:22 2021 daemon.info dnsmasq-dhcp[4425]: DHCPACK(br-lan) 192.168.1.214 f0:77:c3:e5:2d:4c Gram
Mon Oct 25 20:21:23 2021 daemon.info dnsmasq[4425]: read /etc/hosts - 4 addresses
Mon Oct 25 20:21:23 2021 daemon.info dnsmasq[4425]: read /tmp/hosts/odhcpd - 6 addresses
Mon Oct 25 20:21:23 2021 daemon.info dnsmasq[4425]: read /tmp/hosts/dhcp.cfg01411c - 17 addresses
Mon Oct 25 20:21:23 2021 daemon.info dnsmasq-dhcp[4425]: read /etc/ethers - 0 addresses
Mon Oct 25 20:21:24 2021 daemon.info hostapd: 5G: STA bc:54:2f:85:87:ca IEEE 802.11: authenticated
Mon Oct 25 20:21:24 2021 daemon.info hostapd: 5G: STA bc:54:2f:85:87:ca IEEE 802.11: associated (aid 3)
Mon Oct 25 20:21:24 2021 daemon.notice hostapd: 5G: STA-OPMODE-SMPS-MODE-CHANGED bc:54:2f:85:87:ca off
Mon Oct 25 20:21:24 2021 daemon.notice hostapd: 5G: AP-STA-CONNECTED bc:54:2f:85:87:ca
Mon Oct 25 20:21:24 2021 daemon.info hostapd: 5G: STA bc:54:2f:85:87:ca WPA: pairwise key handshake completed (RSN)
Mon Oct 25 20:21:24 2021 daemon.info dnsmasq-dhcp[4425]: DHCPREQUEST(br-lan) 192.168.1.227 bc:54:2f:85:87:ca
Mon Oct 25 20:21:24 2021 daemon.warn dnsmasq-dhcp[4425]: Ignoring domain hwlochner.com for DHCP host name 49810LT
Mon Oct 25 20:21:24 2021 daemon.info dnsmasq-dhcp[4425]: DHCPACK(br-lan) 192.168.1.227 bc:54:2f:85:87:ca 49810LT
Mon Oct 25 20:22:31 2021 daemon.info hostapd: 5G: STA 56:67:e1:4d:30:2d IEEE 802.11: authenticated
Mon Oct 25 20:22:31 2021 daemon.info hostapd: 5G: STA 56:67:e1:4d:30:2d IEEE 802.11: associated (aid 4)
Mon Oct 25 20:22:31 2021 daemon.notice hostapd: 5G: AP-STA-CONNECTED 56:67:e1:4d:30:2d
Mon Oct 25 20:22:31 2021 daemon.info hostapd: 5G: STA 56:67:e1:4d:30:2d WPA: pairwise key handshake completed (RSN)
Mon Oct 25 20:22:31 2021 daemon.info dnsmasq-dhcp[4425]: DHCPREQUEST(br-lan) 192.168.1.240 56:67:e1:4d:30:2d
Mon Oct 25 20:22:31 2021 daemon.info dnsmasq-dhcp[4425]: DHCPACK(br-lan) 192.168.1.240 56:67:e1:4d:30:2d Grant-s-S21-Ultra
Mon Oct 25 21:28:15 2021 kern.warn kernel: [ 4102.904357] ath10k_pci 0000:01:00.0: htt tx: fixing invalid VHT TX rate code 0xff
Mon Oct 25 22:08:26 2021 daemon.info dnsmasq-dhcp[4425]: DHCPREQUEST(br-lan) 192.168.1.102 14:dd:a9:4d:21:17
Mon Oct 25 22:08:26 2021 daemon.info dnsmasq-dhcp[4425]: DHCPACK(br-lan) 192.168.1.102 14:dd:a9:4d:21:17 Crimson
Tue Oct 26 02:16:25 2021 daemon.notice hostapd: 5G: AP-STA-DISCONNECTED 56:67:e1:4d:30:2d
Tue Oct 26 02:16:25 2021 daemon.info hostapd: 5G: STA 56:67:e1:4d:30:2d IEEE 802.11: disassociated due to inactivity
Tue Oct 26 02:16:26 2021 daemon.info hostapd: 5G: STA 56:67:e1:4d:30:2d IEEE 802.11: deauthenticated due to inactivity (timer DEAUTH/REMOVE)
Tue Oct 26 02:20:51 2021 daemon.info dnsmasq-dhcp[4425]: DHCPREQUEST(br-IoT) 192.168.107.100 10:cd:b6:00:9e:09
Tue Oct 26 02:20:51 2021 daemon.info dnsmasq-dhcp[4425]: DHCPACK(br-IoT) 192.168.107.100 10:cd:b6:00:9e:09 EssentialPH-1
Tue Oct 26 02:20:56 2021 daemon.info dnsmasq-dhcp[4425]: DHCPREQUEST(br-IoT) 192.168.107.36 b8:27:eb:ed:c9:e9
Tue Oct 26 02:20:56 2021 daemon.info dnsmasq-dhcp[4425]: DHCPACK(br-IoT) 192.168.107.36 b8:27:eb:ed:c9:e9 Mini-Delta
Tue Oct 26 02:21:08 2021 daemon.info dnsmasq-dhcp[4425]: DHCPREQUEST(br-IoT) 192.168.107.201 00:f6:20:4f:b3:6a
Tue Oct 26 02:21:08 2021 daemon.info dnsmasq-dhcp[4425]: DHCPACK(br-IoT) 192.168.107.201 00:f6:20:4f:b3:6a Google-Home-Mini-Orange
Tue Oct 26 02:21:08 2021 daemon.info dnsmasq-dhcp[4425]: DHCPREQUEST(br-IoT) 192.168.107.202 00:f6:20:a1:02:b8
Tue Oct 26 02:21:08 2021 daemon.info dnsmasq-dhcp[4425]: DHCPACK(br-IoT) 192.168.107.202 00:f6:20:a1:02:b8 Google-Home-Mini-White
Tue Oct 26 02:21:09 2021 daemon.info dnsmasq-dhcp[4425]: DHCPREQUEST(br-IoT) 192.168.107.101 60:01:94:bd:a9:0f
Tue Oct 26 02:21:09 2021 daemon.info dnsmasq-dhcp[4425]: DHCPACK(br-IoT) 192.168.107.101 60:01:94:bd:a9:0f ESP_BDA90F
Tue Oct 26 02:21:09 2021 daemon.info dnsmasq-dhcp[4425]: DHCPREQUEST(br-lan) 192.168.1.100 04:ed:33:e8:75:bf
Tue Oct 26 02:21:09 2021 daemon.info dnsmasq-dhcp[4425]: DHCPACK(br-lan) 192.168.1.100 04:ed:33:e8:75:bf Ire
Tue Oct 26 02:21:09 2021 daemon.info dnsmasq-dhcp[4425]: DHCPREQUEST(br-lan) 192.168.1.170 14:ae:85:70:64:bf
Tue Oct 26 02:21:09 2021 daemon.info dnsmasq-dhcp[4425]: DHCPACK(br-lan) 192.168.1.170 14:ae:85:70:64:bf Lochner-Laptop
Tue Oct 26 02:21:09 2021 daemon.info dnsmasq-dhcp[4425]: DHCPREQUEST(br-IoT) 192.168.107.35 dc:4f:22:eb:54:8d
Tue Oct 26 02:21:09 2021 daemon.info dnsmasq-dhcp[4425]: DHCPACK(br-IoT) 192.168.107.35 dc:4f:22:eb:54:8d ESP_EB548D
Tue Oct 26 02:21:10 2021 daemon.info dnsmasq-dhcp[4425]: DHCPREQUEST(br-IoT) 192.168.107.24 60:01:94:bd:b0:c4
Tue Oct 26 02:21:10 2021 daemon.info dnsmasq-dhcp[4425]: DHCPACK(br-IoT) 192.168.107.24 60:01:94:bd:b0:c4 ESP_BDB0C4
Tue Oct 26 02:21:10 2021 daemon.info dnsmasq-dhcp[4425]: DHCPREQUEST(br-IoT) 192.168.107.90 18:b4:30:0a:40:0d
Tue Oct 26 02:21:10 2021 daemon.info dnsmasq-dhcp[4425]: DHCPACK(br-IoT) 192.168.107.90 18:b4:30:0a:40:0d Nest-Thermostat
Tue Oct 26 02:21:10 2021 daemon.info dnsmasq-dhcp[4425]: DHCPREQUEST(br-IoT) 192.168.107.78 dc:4f:22:9c:9c:01
Tue Oct 26 02:21:10 2021 daemon.info dnsmasq-dhcp[4425]: DHCPACK(br-IoT) 192.168.107.78 dc:4f:22:9c:9c:01 ESP_9C9C01
Tue Oct 26 02:21:33 2021 daemon.info dnsmasq-dhcp[4425]: DHCPREQUEST(br-lan) 192.168.1.214 f0:77:c3:e5:2d:4c
Tue Oct 26 02:21:33 2021 daemon.info dnsmasq-dhcp[4425]: DHCPACK(br-lan) 192.168.1.214 f0:77:c3:e5:2d:4c Gram
Tue Oct 26 02:21:33 2021 daemon.info dnsmasq-dhcp[4425]: DHCPREQUEST(br-lan) 192.168.1.227 bc:54:2f:85:87:ca
Tue Oct 26 02:21:33 2021 daemon.warn dnsmasq-dhcp[4425]: Ignoring domain hwlochner.com for DHCP host name 49810LT
Tue Oct 26 02:21:33 2021 daemon.info dnsmasq-dhcp[4425]: DHCPACK(br-lan) 192.168.1.227 bc:54:2f:85:87:ca 49810LT
Tue Oct 26 02:34:15 2021 daemon.info hostapd: 5G: STA 56:67:e1:4d:30:2d IEEE 802.11: authenticated
Tue Oct 26 02:34:15 2021 daemon.info hostapd: 5G: STA 56:67:e1:4d:30:2d IEEE 802.11: associated (aid 4)
Tue Oct 26 02:34:15 2021 daemon.notice hostapd: 5G: AP-STA-CONNECTED 56:67:e1:4d:30:2d
Tue Oct 26 02:34:15 2021 daemon.info hostapd: 5G: STA 56:67:e1:4d:30:2d WPA: pairwise key handshake completed (RSN)
Tue Oct 26 02:34:16 2021 daemon.info dnsmasq-dhcp[4425]: DHCPREQUEST(br-lan) 192.168.1.240 56:67:e1:4d:30:2d
Tue Oct 26 02:34:16 2021 daemon.info dnsmasq-dhcp[4425]: DHCPACK(br-lan) 192.168.1.240 56:67:e1:4d:30:2d Grant-s-S21-Ultra
Tue Oct 26 03:31:39 2021 daemon.info dnsmasq-dhcp[4425]: DHCPREQUEST(br-lan) 192.168.1.102 14:dd:a9:4d:21:17
Tue Oct 26 03:31:39 2021 daemon.info dnsmasq-dhcp[4425]: DHCPACK(br-lan) 192.168.1.102 14:dd:a9:4d:21:17 Crimson
Tue Oct 26 04:52:46 2021 daemon.notice hostapd: 5G: STA-OPMODE-SMPS-MODE-CHANGED f0:77:c3:e5:2d:4c off
Tue Oct 26 05:10:30 2021 kern.warn kernel: [31838.328791] ath10k_pci 0001:01:00.0: wmi: fixing invalid VHT TX rate code 0xff
Tue Oct 26 05:18:55 2021 daemon.err uhttpd[1751]: luci: accepted login on / for root from 192.168.1.100
Tue Oct 26 05:25:04 2021 daemon.info hostapd: 2G: STA f0:77:c3:e5:2d:4c IEEE 802.11: authenticated
Tue Oct 26 05:25:04 2021 daemon.info hostapd: 2G: STA f0:77:c3:e5:2d:4c IEEE 802.11: associated (aid 1)
Tue Oct 26 05:25:04 2021 daemon.notice hostapd: 5G: Prune association for f0:77:c3:e5:2d:4c
Tue Oct 26 05:25:04 2021 daemon.notice hostapd: 5G: AP-STA-DISCONNECTED f0:77:c3:e5:2d:4c
Tue Oct 26 05:25:04 2021 daemon.notice hostapd: 2G: STA-OPMODE-SMPS-MODE-CHANGED f0:77:c3:e5:2d:4c off
Tue Oct 26 05:25:04 2021 daemon.notice hostapd: 2G: AP-STA-CONNECTED f0:77:c3:e5:2d:4c
Tue Oct 26 05:25:04 2021 daemon.info hostapd: 2G: STA f0:77:c3:e5:2d:4c WPA: pairwise key handshake completed (RSN)
Tue Oct 26 05:25:04 2021 daemon.info dnsmasq-dhcp[4425]: DHCPDISCOVER(br-lan) f0:77:c3:e5:2d:4c
Tue Oct 26 05:25:04 2021 daemon.info dnsmasq-dhcp[4425]: DHCPOFFER(br-lan) 192.168.1.214 f0:77:c3:e5:2d:4c
Tue Oct 26 05:25:04 2021 daemon.info dnsmasq-dhcp[4425]: DHCPREQUEST(br-lan) 192.168.1.214 f0:77:c3:e5:2d:4c
Tue Oct 26 05:25:04 2021 daemon.info dnsmasq-dhcp[4425]: DHCPACK(br-lan) 192.168.1.214 f0:77:c3:e5:2d:4c Gram
Tue Oct 26 05:25:04 2021 daemon.info dnsmasq[4425]: read /etc/hosts - 4 addresses
Tue Oct 26 05:25:04 2021 daemon.info dnsmasq[4425]: read /tmp/hosts/odhcpd - 4 addresses
Tue Oct 26 05:25:04 2021 daemon.info dnsmasq[4425]: read /tmp/hosts/dhcp.cfg01411c - 17 addresses
Tue Oct 26 05:25:04 2021 daemon.info dnsmasq-dhcp[4425]: read /etc/ethers - 0 addresses
Tue Oct 26 05:25:06 2021 daemon.info dnsmasq[4425]: read /etc/hosts - 4 addresses
Tue Oct 26 05:25:06 2021 daemon.info dnsmasq[4425]: read /tmp/hosts/odhcpd - 6 addresses
Tue Oct 26 05:25:06 2021 daemon.info dnsmasq[4425]: read /tmp/hosts/dhcp.cfg01411c - 17 addresses
Tue Oct 26 05:25:06 2021 daemon.info dnsmasq-dhcp[4425]: read /etc/ethers - 0 addresses
Tue Oct 26 05:25:12 2021 daemon.info hostapd: 2G: STA 04:ed:33:e8:75:bf IEEE 802.11: authenticated
Tue Oct 26 05:25:12 2021 daemon.info hostapd: 2G: STA 04:ed:33:e8:75:bf IEEE 802.11: associated (aid 2)
Tue Oct 26 05:25:12 2021 daemon.notice hostapd: 5G: Prune association for 04:ed:33:e8:75:bf
Tue Oct 26 05:25:12 2021 daemon.notice hostapd: 5G: AP-STA-DISCONNECTED 04:ed:33:e8:75:bf
Tue Oct 26 05:25:12 2021 daemon.notice hostapd: 2G: STA-OPMODE-SMPS-MODE-CHANGED 04:ed:33:e8:75:bf off
Tue Oct 26 05:25:12 2021 daemon.notice hostapd: 2G: AP-STA-CONNECTED 04:ed:33:e8:75:bf
Tue Oct 26 05:25:12 2021 daemon.info hostapd: 2G: STA 04:ed:33:e8:75:bf WPA: pairwise key handshake completed (RSN)
Tue Oct 26 05:25:12 2021 daemon.info dnsmasq-dhcp[4425]: DHCPREQUEST(br-lan) 192.168.1.100 04:ed:33:e8:75:bf
Tue Oct 26 05:25:12 2021 daemon.info dnsmasq-dhcp[4425]: DHCPACK(br-lan) 192.168.1.100 04:ed:33:e8:75:bf Ire
Tue Oct 26 05:25:34 2021 daemon.info hostapd: 5G: STA f0:77:c3:e5:2d:4c IEEE 802.11: deauthenticated due to inactivity (timer DEAUTH/REMOVE)
Tue Oct 26 05:25:42 2021 daemon.info hostapd: 5G: STA 04:ed:33:e8:75:bf IEEE 802.11: deauthenticated due to inactivity (timer DEAUTH/REMOVE)
Tue Oct 26 05:26:52 2021 daemon.notice hostapd: 5G: AP-STA-DISCONNECTED bc:54:2f:85:87:ca
Tue Oct 26 05:26:52 2021 daemon.info hostapd: 5G: STA bc:54:2f:85:87:ca IEEE 802.11: disassociated due to inactivity
Tue Oct 26 05:26:53 2021 daemon.info hostapd: 5G: STA bc:54:2f:85:87:ca IEEE 802.11: deauthenticated due to inactivity (timer DEAUTH/REMOVE)
Tue Oct 26 05:26:53 2021 daemon.notice hostapd: 5G: AP-STA-DISCONNECTED 56:67:e1:4d:30:2d
Tue Oct 26 05:26:53 2021 daemon.info hostapd: 5G: STA 56:67:e1:4d:30:2d IEEE 802.11: disassociated due to inactivity
Tue Oct 26 05:26:54 2021 daemon.info hostapd: 5G: STA 56:67:e1:4d:30:2d IEEE 802.11: deauthenticated due to inactivity (timer DEAUTH/REMOVE)
Tue Oct 26 05:31:17 2021 daemon.notice hostapd: 2G: AP-STA-DISCONNECTED f0:77:c3:e5:2d:4c
Tue Oct 26 05:31:21 2021 daemon.info hostapd: 2G: STA f0:77:c3:e5:2d:4c IEEE 802.11: authenticated
Tue Oct 26 05:31:21 2021 daemon.info hostapd: 2G: STA f0:77:c3:e5:2d:4c IEEE 802.11: associated (aid 1)
Tue Oct 26 05:31:21 2021 daemon.notice hostapd: 2G: STA-OPMODE-SMPS-MODE-CHANGED f0:77:c3:e5:2d:4c off
Tue Oct 26 05:31:21 2021 daemon.notice hostapd: 2G: AP-STA-CONNECTED f0:77:c3:e5:2d:4c
Tue Oct 26 05:31:21 2021 daemon.info hostapd: 2G: STA f0:77:c3:e5:2d:4c WPA: pairwise key handshake completed (RSN)
Tue Oct 26 05:31:21 2021 daemon.info dnsmasq-dhcp[4425]: DHCPREQUEST(br-lan) 192.168.1.214 f0:77:c3:e5:2d:4c
Tue Oct 26 05:31:21 2021 daemon.info dnsmasq-dhcp[4425]: DHCPACK(br-lan) 192.168.1.214 f0:77:c3:e5:2d:4c Gram
Tue Oct 26 05:31:32 2021 daemon.info dnsmasq[4425]: read /etc/hosts - 4 addresses
Tue Oct 26 05:31:32 2021 daemon.info dnsmasq[4425]: read /tmp/hosts/odhcpd - 4 addresses
Tue Oct 26 05:31:32 2021 daemon.info dnsmasq[4425]: read /tmp/hosts/dhcp.cfg01411c - 17 addresses
Tue Oct 26 05:31:32 2021 daemon.info dnsmasq-dhcp[4425]: read /etc/ethers - 0 addresses
Tue Oct 26 05:31:33 2021 daemon.info dnsmasq[4425]: read /etc/hosts - 4 addresses
Tue Oct 26 05:31:33 2021 daemon.info dnsmasq[4425]: read /tmp/hosts/odhcpd - 6 addresses
Tue Oct 26 05:31:33 2021 daemon.info dnsmasq[4425]: read /tmp/hosts/dhcp.cfg01411c - 17 addresses
Tue Oct 26 05:31:33 2021 daemon.info dnsmasq-dhcp[4425]: read /etc/ethers - 0 addresses
Tue Oct 26 05:37:08 2021 daemon.notice hostapd: 2G: AP-STA-DISCONNECTED f0:77:c3:e5:2d:4c
Tue Oct 26 05:37:13 2021 daemon.info hostapd: 2G: STA f0:77:c3:e5:2d:4c IEEE 802.11: authenticated
Tue Oct 26 05:37:13 2021 daemon.info hostapd: 2G: STA f0:77:c3:e5:2d:4c IEEE 802.11: associated (aid 1)
Tue Oct 26 05:37:13 2021 daemon.notice hostapd: 2G: STA-OPMODE-SMPS-MODE-CHANGED f0:77:c3:e5:2d:4c off
Tue Oct 26 05:37:13 2021 daemon.notice hostapd: 2G: AP-STA-CONNECTED f0:77:c3:e5:2d:4c
Tue Oct 26 05:37:13 2021 daemon.info hostapd: 2G: STA f0:77:c3:e5:2d:4c WPA: pairwise key handshake completed (RSN)
Tue Oct 26 05:37:13 2021 daemon.info dnsmasq-dhcp[4425]: DHCPREQUEST(br-lan) 192.168.1.214 f0:77:c3:e5:2d:4c
Tue Oct 26 05:37:13 2021 daemon.info dnsmasq-dhcp[4425]: DHCPACK(br-lan) 192.168.1.214 f0:77:c3:e5:2d:4c Gram
Tue Oct 26 05:37:23 2021 daemon.info dnsmasq[4425]: read /etc/hosts - 4 addresses
Tue Oct 26 05:37:23 2021 daemon.info dnsmasq[4425]: read /tmp/hosts/odhcpd - 4 addresses
Tue Oct 26 05:37:23 2021 daemon.info dnsmasq[4425]: read /tmp/hosts/dhcp.cfg01411c - 17 addresses
Tue Oct 26 05:37:23 2021 daemon.info dnsmasq-dhcp[4425]: read /etc/ethers - 0 addresses
Tue Oct 26 05:37:24 2021 daemon.info dnsmasq[4425]: read /etc/hosts - 4 addresses
Tue Oct 26 05:37:24 2021 daemon.info dnsmasq[4425]: read /tmp/hosts/odhcpd - 6 addresses
Tue Oct 26 05:37:24 2021 daemon.info dnsmasq[4425]: read /tmp/hosts/dhcp.cfg01411c - 17 addresses
Tue Oct 26 05:37:24 2021 daemon.info dnsmasq-dhcp[4425]: read /etc/ethers - 0 addresses
2

Run cat /etc/config/wireless and post the results.

4

Remove the Key info and re-post.

5 
config wifi-device 'radio0'
        option type 'mac80211'
        option hwmode '11a'
        option path 'soc/1b500000.pci/pci0000:00/0000:00:00.0/0000:01:00.0'
        option cell_density '0'
        option country 'US'
        option channel '36'
        option htmode 'VHT80'

config wifi-iface 'default_radio0'
        option device 'radio0'
        option network 'lan'
        option mode 'ap'
        option ssid 'Orange'
        option key 'Password'
        option ifname '5G'
        option ieee80211w '1'
        option disassoc_low_ack '0'
        option encryption 'psk2'

config wifi-device 'radio1'
        option type 'mac80211'
        option hwmode '11g'
        option path 'soc/1b700000.pci/pci0001:00/0001:00:00.0/0001:01:00.0'
        option country 'US'
        option cell_density '0'
        option channel '8'
        option htmode 'HT40'

config wifi-iface 'default_radio1'
        option device 'radio1'
        option network 'lan'
        option mode 'ap'
        option ssid 'Tangerine'
        option key 'Password'
        option ifname '2G'
        option ieee80211w '1'
        option encryption 'psk2'

config wifi-iface 'wifinet2'
        option device 'radio1'
        option mode 'ap'
        option network 'Guest'
        option key 'Password'
        option ssid 'Clementine'
        option ifname 'Guest'
        option ieee80211w '1'
        option encryption 'psk2'

config wifi-iface 'wifinet5'
        option device 'radio1'
        option mode 'ap'
        option network 'IoT'
        option ssid 'Mandarin'
        option key 'Password'
        option ifname 'IoT'
        option encryption 'psk'
6

On the 5 Ghz radio, I would suggest a higher channel.

Run iwinfo wlan0 scan | grep Channel and see which channel has the least usage.

I use 153.

I would try changing the channel width from 80 to 40...if no improvement, change it to 20.

For 2.4 Ghz, I would pick channel 1, 6, or 11.

Run iwinfo wlan1 scan | grep Channel and see which of the three has less usage.

7

I live rather close to an international airport, and in an apartment complex so finding the right channel for solid connections has been a challenge. Here are my results.

iwinfo radio0 scan | grep Channel

          Mode: Master  Channel: 36
                    Primary Channel: 36
                    Secondary Channel Offset: above
                    Channel Width: unknown
                    Channel Width: unknown
          Mode: Master  Channel: 40
                    Primary Channel: 40
                    Secondary Channel Offset: below
                    Channel Width: unknown
                    Channel Width: unknown
          Mode: Master  Channel: 40
                    Primary Channel: 40
                    Secondary Channel Offset: below
                    Channel Width: unknown
                    Channel Width: unknown
          Mode: Master  Channel: 149
                    Primary Channel: 149
                    Secondary Channel Offset: above
                    Channel Width: unknown
                    Channel Width: unknown
          Mode: Master  Channel: 149
                    Primary Channel: 149
                    Secondary Channel Offset: above
                    Channel Width: unknown
                    Channel Width: unknown
          Mode: Master  Channel: 112
                    Primary Channel: 112
                    Secondary Channel Offset: no secondary
                    Channel Width: unknown
                    Channel Width: unknown
          Mode: Master  Channel: 157
                    Primary Channel: 157
                    Secondary Channel Offset: above
                    Channel Width: unknown
                    Channel Width: unknown
          Mode: Master  Channel: 157
                    Primary Channel: 157
                    Secondary Channel Offset: above
                    Channel Width: unknown
                    Channel Width: unknown
          Mode: Master  Channel: 157
                    Primary Channel: 157
                    Secondary Channel Offset: above
                    Channel Width: unknown
                    Channel Width: unknown
          Mode: Master  Channel: 157
                    Primary Channel: 157
                    Secondary Channel Offset: above
                    Channel Width: unknown
                    Channel Width: unknown
          Mode: Master  Channel: 157
                    Primary Channel: 157
                    Secondary Channel Offset: above
                    Channel Width: unknown
                    Channel Width: unknown

iwinfo radio1 scan | grep Channel

          Mode: Master  Channel: 1
                    Primary Channel: 1
                    Secondary Channel Offset: no secondary
                    Channel Width: unknown
          Mode: Master  Channel: 1
                    Primary Channel: 1
                    Secondary Channel Offset: no secondary
                    Channel Width: unknown
          Mode: Master  Channel: 1
                    Primary Channel: 1
                    Secondary Channel Offset: no secondary
                    Channel Width: unknown
          Mode: Master  Channel: 1
                    Primary Channel: 1
                    Secondary Channel Offset: no secondary
                    Channel Width: unknown
          Mode: Master  Channel: 1
                    Primary Channel: 1
                    Secondary Channel Offset: above
                    Channel Width: unknown
          Mode: Master  Channel: 1
                    Primary Channel: 1
                    Secondary Channel Offset: above
                    Channel Width: unknown
          Mode: Master  Channel: 1
                    Primary Channel: 1
                    Secondary Channel Offset: above
                    Channel Width: unknown
          Mode: Master  Channel: 1
                    Primary Channel: 1
                    Secondary Channel Offset: no secondary
                    Channel Width: unknown
          Mode: Master  Channel: 1
                    Primary Channel: 1
                    Secondary Channel Offset: no secondary
                    Channel Width: unknown
          Mode: Master  Channel: 1
                    Primary Channel: 1
                    Secondary Channel Offset: no secondary
                    Channel Width: unknown
          Mode: Master  Channel: 1
                    Primary Channel: 1
                    Secondary Channel Offset: no secondary
                    Channel Width: unknown
          Mode: Master  Channel: 1
                    Primary Channel: 1
                    Secondary Channel Offset: no secondary
                    Channel Width: unknown
          Mode: Master  Channel: 1
                    Primary Channel: 1
                    Secondary Channel Offset: no secondary
                    Channel Width: unknown
          Mode: Master  Channel: 11
                    Primary Channel: 11
                    Secondary Channel Offset: no secondary
                    Channel Width: unknown
          Mode: Master  Channel: 6
                    Primary Channel: 6
                    Secondary Channel Offset: no secondary
                    Channel Width: unknown
          Mode: Master  Channel: 7
                    Primary Channel: 7
                    Secondary Channel Offset: no secondary
                    Channel Width: unknown
          Mode: Master  Channel: 6
                    Primary Channel: 6
                    Secondary Channel Offset: no secondary
                    Channel Width: unknown
          Mode: Master  Channel: 6
                    Primary Channel: 6
                    Secondary Channel Offset: no secondary
                    Channel Width: unknown
          Mode: Master  Channel: 6
                    Primary Channel: 6
                    Secondary Channel Offset: no secondary
                    Channel Width: unknown
          Mode: Master  Channel: 6
                    Primary Channel: 6
                    Secondary Channel Offset: no secondary
                    Channel Width: unknown
          Mode: Master  Channel: 6
                    Primary Channel: 6
                    Secondary Channel Offset: no secondary
                    Channel Width: unknown
          Mode: Master  Channel: 6
                    Primary Channel: 6
                    Secondary Channel Offset: above
                    Channel Width: unknown
          Mode: Master  Channel: 6
                    Primary Channel: 6
                    Secondary Channel Offset: above
                    Channel Width: unknown
          Mode: Master  Channel: 6
                    Primary Channel: 6
                    Secondary Channel Offset: no secondary
                    Channel Width: unknown
          Mode: Master  Channel: 6
                    Primary Channel: 6
                    Secondary Channel Offset: no secondary
                    Channel Width: unknown
          Mode: Master  Channel: 6
                    Primary Channel: 6
                    Secondary Channel Offset: no secondary
                    Channel Width: unknown
          Mode: Master  Channel: 6
                    Primary Channel: 6
                    Secondary Channel Offset: no secondary
                    Channel Width: unknown
          Mode: Master  Channel: 11
                    Primary Channel: 11
                    Secondary Channel Offset: no secondary
                    Channel Width: unknown
          Mode: Master  Channel: 11
                    Primary Channel: 11
                    Secondary Channel Offset: no secondary
                    Channel Width: unknown
          Mode: Master  Channel: 11
                    Primary Channel: 11
                    Secondary Channel Offset: no secondary
                    Channel Width: unknown
          Mode: Master  Channel: 11
                    Primary Channel: 11
                    Secondary Channel Offset: no secondary
                    Channel Width: unknown
          Mode: Master  Channel: 11
                    Primary Channel: 11
                    Secondary Channel Offset: no secondary
                    Channel Width: unknown
          Mode: Master  Channel: 11
                    Primary Channel: 11
                    Secondary Channel Offset: no secondary
                    Channel Width: unknown
          Mode: Master  Channel: 11
                    Primary Channel: 11
                    Secondary Channel Offset: no secondary
                    Channel Width: unknown
          Mode: Master  Channel: 11
                    Primary Channel: 11
                    Secondary Channel Offset: no secondary
                    Channel Width: unknown
          Mode: Master  Channel: 11
                    Primary Channel: 11
                    Secondary Channel Offset: no secondary
                    Channel Width: unknown
          Mode: Master  Channel: 11
                    Primary Channel: 11
                    Secondary Channel Offset: no secondary
                    Channel Width: unknown
8

Try 153 for 5 Ghz, set your channel width to 40, and test the condition.

@slh owns this router I believe, and may have other suggestions.

9

The router completely refused to use channel 153 under the country code for US, and reverts to channel 149, however when I changed the country code to 'driver default' it started using it, but crashing almost immediately.

Now I'm getting:

Tue Oct 26 07:17:44 2021 daemon.warn hostapd: 5G: IEEE 802.11 Configured channel (153) or frequency (5765) not found from the channel list of the current mode (2) IEEE 802.11a
Tue Oct 26 07:17:44 2021 daemon.warn hostapd: 5G: IEEE 802.11 Hardware does not support configured channel
Tue Oct 26 07:17:44 2021 daemon.err hostapd: Could not select hw_mode and channel. (-3)
Tue Oct 26 07:17:44 2021 daemon.notice hostapd: 5G: interface state UNINITIALIZED->DISABLED
Tue Oct 26 07:17:44 2021 daemon.notice hostapd: 5G: AP-DISABLED
Tue Oct 26 07:17:44 2021 daemon.err hostapd: 5G: Unable to setup interface.
Tue Oct 26 07:17:44 2021 daemon.notice hostapd: nl80211: deinit ifname=5G disabled_11b_rates=0
Tue Oct 26 07:17:44 2021 kern.info kernel: [   34.689468] device 5G left promiscuous mode
Tue Oct 26 07:17:44 2021 kern.info kernel: [   34.689590] br-lan: port 2(5G) entered disabled state

Switched back to country code US and it reverted to channel 60... I'm not sure why the 5g radio is being so problematic.

10

Channel 153 finally worked after changing the channel width to 20hz, however quickly crashed under load.

11

Channels 52-144 are DFS (radar) channels, so it's odd that it reverted to 60.

Try 149, 157, and 161.

What is Maximum Transmit Power set to?

12

Driver default

13

Try manually setting it to 20 and re-test with 149, 157, and 161.

Channel width at 20, then 40.

14

Also, when you get a chance, run iwinfo and post the results.

I'm interested in the SNR on your 5 Ghz connections.

15

Setting the maximum transmit power to 20 seemed to really do the trick! No more crashing. I'll report back with more details soon.

1 Like
16 
2G        ESSID: "Tangerine"
          Access Point: 54:83:3A:73:17:A8
          Mode: Master  Channel: 6 (2.437 GHz)
          Center Channel 1: 6 2: unknown
          Tx-Power: 20 dBm  Link Quality: unknown/70
          Signal: unknown  Noise: -97 dBm
          Bit Rate: unknown
          Encryption: WPA2 PSK (CCMP)
          Type: nl80211  HW Mode(s): 802.11bgn
          Hardware: 168C:0046 168C:CAFE [Qualcomm Atheros QCA9984]
          TX power offset: none
          Frequency offset: none
          Supports VAPs: yes  PHY name: phy1

5G        ESSID: "Orange"
          Access Point: 54:83:3A:73:17:A9
          Mode: Master  Channel: 157 (5.785 GHz)
          Center Channel 1: 159 2: unknown
          Tx-Power: 20 dBm  Link Quality: 47/70
          Signal: -61 dBm  Noise: -110 dBm
          Bit Rate: 360.0 MBit/s
          Encryption: WPA2 PSK (CCMP)
          Type: nl80211  HW Mode(s): 802.11nac
          Hardware: 168C:0046 168C:CAFE [Qualcomm Atheros QCA9984]
          TX power offset: none
          Frequency offset: none
          Supports VAPs: yes  PHY name: phy0

Guest     ESSID: "Clementine"
          Access Point: 56:83:3A:73:17:A8
          Mode: Master  Channel: 6 (2.437 GHz)
          Center Channel 1: 6 2: unknown
          Tx-Power: 20 dBm  Link Quality: unknown/70
          Signal: unknown  Noise: -97 dBm
          Bit Rate: unknown
          Encryption: WPA2 PSK (CCMP)
          Type: nl80211  HW Mode(s): 802.11bgn
          Hardware: 168C:0046 168C:CAFE [Qualcomm Atheros QCA9984]
          TX power offset: none
          Frequency offset: none
          Supports VAPs: yes  PHY name: phy1

IoT       ESSID: "Mandarin"
          Access Point: 52:83:3A:73:17:A8
          Mode: Master  Channel: 6 (2.437 GHz)
          Center Channel 1: 6 2: unknown
          Tx-Power: 20 dBm  Link Quality: 62/70
          Signal: -48 dBm  Noise: -97 dBm
          Bit Rate: 58.6 MBit/s
          Encryption: WPA PSK (CCMP)
          Type: nl80211  HW Mode(s): 802.11bgn
          Hardware: 168C:0046 168C:CAFE [Qualcomm Atheros QCA9984]
          TX power offset: none
          Frequency offset: none
          Supports VAPs: yes  PHY name: phy1
17

ESSID "Orange" signal strength of 49 dBm is good (OpenWRT calls it SNR, but SNR is typically measured in dB).

Did you have this problem before 21.02.0?

18

I think this was persistent, yes. The transmit power was always set to Driver default, which was reporting at 23db.

19

Keep an eye on channel usage in your area, and your signal strength.

Conditions during peak usage hours may change things.

1 Like