Belkin RT3200/Linksys E8450 WiFi AX discussion

An update on this, I've been on
r19616-98bb26f9f7 for a while now and yikes.
The issue has been happening nearly every day.

I decided as a test to switch my 5GHz interface
from:
WPA2-PSK/WPA3-SAE Mixed Mode
to:
WPA2-PSK only

And to my surprise the rate at which the 5GHz interface dies is much much faster.
It regularly disappears within hours now rather than days.

Relevant context:
Mode AX, Channel 124, Width 160MHz, Default Driver Max Transmit Power
Isolate clients on
My 2.4GHz interface is completely disabled; I do not use it. The few times I have it on the issue only affects the 5GHz interface, the 2.4GHz one does not experience these issues.

When bugged out, Luci shows

MediaTek MT7915E 802.11nacax
Channel: 124 (5.620 GHz) | Bitrate: ? Mbit/s

in the Wireless section

Here is my dmsg

root@E8450:~# dmesg
[    0.000000] Booting Linux on physical CPU 0x0000000000 [0x410fd034]
[    0.000000] Linux version 5.15.35 (builder@buildhost) (aarch64-openwrt-linux-musl-gcc (OpenWrt GCC 11.2.0 r19616-98bb26f9f7) 11.2.0, GNU ld (GNU Binutils) 2.37) #0 SMP Sun May 8 08:05:14 2022
[    0.000000] Machine model: Linksys E8450 (UBI)
[    0.000000] earlycon: uart8250 at MMIO32 0x0000000011002000 (options '')
[    0.000000] printk: bootconsole [uart8250] enabled
[    0.000000] Zone ranges:
[    0.000000]   DMA      [mem 0x0000000040000000-0x000000005fffffff]
[    0.000000]   DMA32    empty
[    0.000000]   Normal   empty
[    0.000000] Movable zone start for each node
[    0.000000] Early memory node ranges
[    0.000000]   node   0: [mem 0x0000000040000000-0x0000000042ffffff]
[    0.000000]   node   0: [mem 0x0000000043000000-0x000000004302ffff]
[    0.000000]   node   0: [mem 0x0000000043030000-0x000000005fffffff]
[    0.000000] Initmem setup node 0 [mem 0x0000000040000000-0x000000005fffffff]
[    0.000000] psci: probing for conduit method from DT.
[    0.000000] psci: PSCIv1.1 detected in firmware.
[    0.000000] psci: Using standard PSCI v0.2 function IDs
[    0.000000] psci: MIGRATE_INFO_TYPE not supported.
[    0.000000] psci: SMC Calling Convention v1.2
[    0.000000] percpu: Embedded 17 pages/cpu s29400 r8192 d32040 u69632
[    0.000000] pcpu-alloc: s29400 r8192 d32040 u69632 alloc=17*4096
[    0.000000] pcpu-alloc: [0] 0 [0] 1
[    0.000000] Detected VIPT I-cache on CPU0
[    0.000000] CPU features: kernel page table isolation disabled by kernel configuration
[    0.000000] CPU features: detected: ARM erratum 843419
[    0.000000] CPU features: detected: ARM erratum 845719
[    0.000000] Built 1 zonelists, mobility grouping on.  Total pages: 129024
[    0.000000] Kernel command line: earlycon=uart8250,mmio32,0x11002000 console=ttyS0,115200n1 swiotlb=512
[    0.000000] Dentry cache hash table entries: 65536 (order: 7, 524288 bytes, linear)
[    0.000000] Inode-cache hash table entries: 32768 (order: 6, 262144 bytes, linear)
[    0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off
[    0.000000] Memory: 500848K/524288K available (8640K kernel code, 906K rwdata, 2356K rodata, 448K init, 309K bss, 23440K reserved, 0K cma-reserved)
[    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1
[    0.000000] rcu: Hierarchical RCU implementation.
[    0.000000]  Tracing variant of Tasks RCU enabled.
[    0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies.
[    0.000000] NR_IRQS: 64, nr_irqs: 64, preallocated irqs: 0
[    0.000000] Root IRQ handler: gic_handle_irq
[    0.000000] GIC: Using split EOI/Deactivate mode
[    0.000000] random: get_random_bytes called from start_kernel+0x49c/0x5e8 with crng_init=0
[    0.000000] arch_timer: cp15 timer(s) running at 12.50MHz (phys).
[    0.000000] clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0x2e2049cda, max_idle_ns: 440795202628 ns
[    0.000000] sched_clock: 56 bits at 12MHz, resolution 80ns, wraps every 4398046511080ns
[    0.008483] Calibrating delay loop (skipped), value calculated using timer frequency.. 25.00 BogoMIPS (lpj=125000)
[    0.019214] pid_max: default: 32768 minimum: 301
[    0.024093] Mount-cache hash table entries: 1024 (order: 1, 8192 bytes, linear)
[    0.031676] Mountpoint-cache hash table entries: 1024 (order: 1, 8192 bytes, linear)
[    0.040718] rcu: Hierarchical SRCU implementation.
[    0.045817] dyndbg: Ignore empty _ddebug table in a CONFIG_DYNAMIC_DEBUG_CORE build
[    0.054052] smp: Bringing up secondary CPUs ...
[    0.059083] Detected VIPT I-cache on CPU1
[    0.059092] CPU features: SANITY CHECK: Unexpected variation in SYS_CNTFRQ_EL0. Boot CPU: 0x00000000bebc20, CPU1: 0x00000000000000
[    0.059114] CPU features: Unsupported CPU feature variation detected.
[    0.059144] CPU1: Booted secondary processor 0x0000000001 [0x410fd034]
[    0.059210] smp: Brought up 1 node, 2 CPUs
[    0.093195] SMP: Total of 2 processors activated.
[    0.098063] CPU features: detected: 32-bit EL0 Support
[    0.103384] CPU features: detected: CRC32 instructions
[    0.108799] CPU: All CPU(s) started at EL2
[    0.113042] alternatives: patching kernel code
[    0.121132] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[    0.131344] futex hash table entries: 512 (order: 3, 32768 bytes, linear)
[    0.138475] pinctrl core: initialized pinctrl subsystem
[    0.144530] NET: Registered PF_NETLINK/PF_ROUTE protocol family
[    0.150943] DMA: preallocated 128 KiB GFP_KERNEL pool for atomic allocations
[    0.158285] DMA: preallocated 128 KiB GFP_KERNEL|GFP_DMA pool for atomic allocations
[    0.166326] DMA: preallocated 128 KiB GFP_KERNEL|GFP_DMA32 pool for atomic allocations
[    0.174775] thermal_sys: Registered thermal governor 'fair_share'
[    0.174779] thermal_sys: Registered thermal governor 'bang_bang'
[    0.181087] thermal_sys: Registered thermal governor 'step_wise'
[    0.187309] thermal_sys: Registered thermal governor 'user_space'
[    0.193729] ASID allocator initialised with 65536 entries
[    0.206011] pstore: Registered ramoops as persistent store backend
[    0.212419] ramoops: using 0x10000@0x42ff0000, ecc: 0
[    0.238803] cryptd: max_cpu_qlen set to 1000
[    0.245424] SCSI subsystem initialized
[    0.249464] libata version 3.00 loaded.
[    0.253551] usbcore: registered new interface driver usbfs
[    0.259274] usbcore: registered new interface driver hub
[    0.264795] usbcore: registered new device driver usb
[    0.271138] clocksource: Switched to clocksource arch_sys_counter
[    0.277950] NET: Registered PF_INET protocol family
[    0.283124] IP idents hash table entries: 8192 (order: 4, 65536 bytes, linear)
[    0.291047] tcp_listen_portaddr_hash hash table entries: 256 (order: 0, 4096 bytes, linear)
[    0.299750] TCP established hash table entries: 4096 (order: 3, 32768 bytes, linear)
[    0.307812] TCP bind hash table entries: 4096 (order: 4, 65536 bytes, linear)
[    0.315256] TCP: Hash tables configured (established 4096 bind 4096)
[    0.321920] UDP hash table entries: 256 (order: 1, 8192 bytes, linear)
[    0.328692] UDP-Lite hash table entries: 256 (order: 1, 8192 bytes, linear)
[    0.336017] NET: Registered PF_UNIX/PF_LOCAL protocol family
[    0.341902] PCI: CLS 0 bytes, default 64
[    0.348507] workingset: timestamp_bits=46 max_order=17 bucket_order=0
[    0.357970] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[    0.364062] jffs2: version 2.2 (NAND) (SUMMARY) (LZMA) (RTIME) (CMODE_PRIORITY) (c) 2001-2006 Red Hat, Inc.
[    0.406372] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 250)
[    0.415287] mt7622-pinctrl 10211000.pinctrl: invalid group "pwm_ch7_2" for function "pwm"
[    0.427824] mt-pmic-pwrap 10001000.pwrap: unexpected interrupt int=0x1
[    0.449448] Serial: 8250/16550 driver, 16 ports, IRQ sharing enabled
[    0.457794] printk: console [ttyS0] disabled
[    0.482492] 11002000.serial: ttyS0 at MMIO 0x11002000 (irq = 125, base_baud = 1562500) is a ST16650V2
[    0.492094] printk: console [ttyS0] enabled
[    0.500459] printk: bootconsole [uart8250] disabled
[    0.530894] 11004000.serial: ttyS1 at MMIO 0x11004000 (irq = 126, base_baud = 1562500) is a ST16650V2
[    0.540884] 1100c000.serial: ttyS2 at MMIO 0x1100c000 (irq = 130, base_baud = 17499995) is a MediaTek BTIF
[    0.550706] serial serial0: tty port ttyS2 registered
[    0.556381] mtk_rng 1020f000.rng: registered RNG driver
[    0.556397] hwrng: no data available
[    0.568468] loop: module loaded
[    0.571678] Loading iSCSI transport class v2.0-870.
[    0.577761] mtk-ecc 1100e000.ecc: probed
[    0.584087] spi-nand spi2.0: Fidelix SPI NAND was found.
[    0.589408] spi-nand spi2.0: 128 MiB, block size: 128 KiB, page size: 2048, OOB size: 64
[    0.597673] mtk-snand 1100d000.spi: ECC strength: 4 bits per 512 bytes
[    0.604454] 4 fixed-partitions partitions found on MTD device spi2.0
[    0.610812] Creating 4 MTD partitions on "spi2.0":
[    0.615669] 0x000000000000-0x000000080000 : "bl2"
[    0.621342] 0x000000080000-0x0000001c0000 : "fip"
[    0.627740] 0x0000001c0000-0x0000002c0000 : "factory"
[    0.634352] 0x000000300000-0x000008000000 : "ubi"
[    0.668782] random: fast init done
[    0.798001] mtk_soc_eth 1b100000.ethernet eth0: mediatek frame engine at 0xffffffc009400000, irq 141
[    0.807790] i2c_dev: i2c /dev entries driver
[    0.813128] mtk-wdt 10212000.watchdog: IRQ index 0 not found
[    0.818957] mtk-wdt 10212000.watchdog: Watchdog enabled (timeout=31 sec, nowayout=0)
[    0.830383] NET: Registered PF_INET6 protocol family
[    0.836456] Segment Routing with IPv6
[    0.840134] In-situ OAM (IOAM) with IPv6
[    0.844127] NET: Registered PF_PACKET protocol family
[    0.849219] bridge: filtering via arp/ip/ip6tables is no longer available by default. Update your scripts to load br_netfilter if you need this.
[    0.862299] 8021q: 802.1Q VLAN Support v1.8
[    0.867616] pstore: Using crash dump compression: deflate
[    0.883155] mtk-pcie 1a143000.pcie: host bridge /pcie@1a143000 ranges:
[    0.889705] mtk-pcie 1a143000.pcie: Parsing ranges property...
[    0.895577] mtk-pcie 1a143000.pcie:      MEM 0x0020000000..0x0027ffffff -> 0x0020000000
[    1.037462] mtk-pcie 1a143000.pcie: PCI host bridge to bus 0000:00
[    1.043669] pci_bus 0000:00: root bus resource [bus 00-ff]
[    1.049152] pci_bus 0000:00: root bus resource [mem 0x20000000-0x27ffffff]
[    1.056025] pci_bus 0000:00: scanning bus
[    1.060071] pci 0000:00:00.0: [14c3:3258] type 01 class 0x060400
[    1.066101] pci 0000:00:00.0: reg 0x10: [mem 0x00000000-0x1ffffffff 64bit pref]
[    1.074855] pci_bus 0000:00: fixups for bus
[    1.079047] pci 0000:00:00.0: scanning [bus 00-00] behind bridge, pass 0
[    1.085759] pci 0000:00:00.0: bridge configuration invalid ([bus 00-00]), reconfiguring
[    1.093774] pci 0000:00:00.0: scanning [bus 00-00] behind bridge, pass 1
[    1.100604] pci_bus 0000:01: scanning bus
[    1.104834] pci 0000:01:00.0: [14c3:7915] type 00 class 0x000280
[    1.111014] pci 0000:01:00.0: reg 0x10: [mem 0x00000000-0x000fffff 64bit pref]
[    1.118343] pci 0000:01:00.0: reg 0x18: [mem 0x00000000-0x00003fff 64bit pref]
[    1.125668] pci 0000:01:00.0: reg 0x20: [mem 0x00000000-0x00000fff 64bit pref]
[    1.133625] pci 0000:01:00.0: supports D1 D2
[    1.137888] pci 0000:01:00.0: PME# supported from D0 D1 D2 D3hot D3cold
[    1.144528] pci 0000:01:00.0: PME# disabled
[    1.149007] pci 0000:01:00.0: 2.000 Gb/s available PCIe bandwidth, limited by 2.5 GT/s PCIe x1 link at 0000:00:00.0 (capable of 4.000 Gb/s with 5.0 GT/s PCIe x1 link)
[    1.192433] pci_bus 0000:01: fixups for bus
[    1.196625] pci_bus 0000:01: bus scan returning with max=01
[    1.202202] pci_bus 0000:01: busn_res: [bus 01-ff] end is updated to 01
[    1.208820] pci_bus 0000:00: bus scan returning with max=01
[    1.214404] pci 0000:00:00.0: BAR 0: no space for [mem size 0x200000000 64bit pref]
[    1.222059] pci 0000:00:00.0: BAR 0: failed to assign [mem size 0x200000000 64bit pref]
[    1.230056] pci 0000:00:00.0: BAR 8: assigned [mem 0x20000000-0x201fffff]
[    1.236843] pci 0000:01:00.0: BAR 0: assigned [mem 0x20000000-0x200fffff 64bit pref]
[    1.244669] pci 0000:01:00.0: BAR 2: assigned [mem 0x20100000-0x20103fff 64bit pref]
[    1.252504] pci 0000:01:00.0: BAR 4: assigned [mem 0x20104000-0x20104fff 64bit pref]
[    1.260324] pci 0000:00:00.0: PCI bridge to [bus 01]
[    1.265290] pci 0000:00:00.0:   bridge window [mem 0x20000000-0x201fffff]
[    1.272206] pcieport 0000:00:00.0: assign IRQ: got 146
[    1.277351] pcieport 0000:00:00.0: enabling device (0000 -> 0002)
[    1.283465] pcieport 0000:00:00.0: enabling bus mastering
[    1.288893] mtk-pcie 1a143000.pcie: msi#0 address_hi 0x0 address_lo 0x44e950c0
[    1.296306] pcieport 0000:00:00.0: PME: Signaling with IRQ 146
[    1.302241] pcieport 0000:00:00.0: saving config space at offset 0x0 (reading 0x325814c3)
[    1.310417] pcieport 0000:00:00.0: saving config space at offset 0x4 (reading 0x100006)
[    1.318424] pcieport 0000:00:00.0: saving config space at offset 0x8 (reading 0x6040000)
[    1.326513] pcieport 0000:00:00.0: saving config space at offset 0xc (reading 0x10000)
[    1.334426] pcieport 0000:00:00.0: saving config space at offset 0x10 (reading 0xc)
[    1.342078] pcieport 0000:00:00.0: saving config space at offset 0x14 (reading 0x0)
[    1.349728] pcieport 0000:00:00.0: saving config space at offset 0x18 (reading 0x40010100)
[    1.357987] pcieport 0000:00:00.0: saving config space at offset 0x1c (reading 0x4200000)
[    1.366160] pcieport 0000:00:00.0: saving config space at offset 0x20 (reading 0x20102000)
[    1.374423] pcieport 0000:00:00.0: saving config space at offset 0x24 (reading 0x0)
[    1.382075] pcieport 0000:00:00.0: saving config space at offset 0x28 (reading 0x0)
[    1.389724] pcieport 0000:00:00.0: saving config space at offset 0x2c (reading 0x0)
[    1.397376] pcieport 0000:00:00.0: saving config space at offset 0x30 (reading 0x0)
[    1.405029] pcieport 0000:00:00.0: saving config space at offset 0x34 (reading 0x50)
[    1.412768] pcieport 0000:00:00.0: saving config space at offset 0x38 (reading 0x0)
[    1.420417] pcieport 0000:00:00.0: saving config space at offset 0x3c (reading 0x20192)
[    1.428813] mtk-pcie 1a145000.pcie: host bridge /pcie@1a145000 ranges:
[    1.435376] mtk-pcie 1a145000.pcie: Parsing ranges property...
[    1.441210] mtk-pcie 1a145000.pcie:      MEM 0x0028000000..0x002fffffff -> 0x0028000000
[    1.661160] mtk-pcie 1a145000.pcie: Port1 link down
[    1.666182] mtk-pcie 1a145000.pcie: PCI host bridge to bus 0001:00
[    1.672373] pci_bus 0001:00: root bus resource [bus 00-ff]
[    1.677854] pci_bus 0001:00: root bus resource [mem 0x28000000-0x2fffffff]
[    1.684727] pci_bus 0001:00: scanning bus
[    1.689856] pci_bus 0001:00: fixups for bus
[    1.694038] pci_bus 0001:00: bus scan returning with max=00
[    1.700097] mtk_hsdma 1b007000.dma-controller: MediaTek HSDMA driver registered
[    1.751256] mt7530 mdio-bus:00: configuring for fixed/2500base-x link mode
[    1.758752] mt7530 mdio-bus:00: Link is Up - 2.5Gbps/Full - flow control rx/tx
[    1.767732] mt7530 mdio-bus:00 lan1 (uninitialized): PHY [mt7530-0:00] driver [MediaTek MT7531 PHY] (irq=147)
[    1.787844] mt7530 mdio-bus:00 lan2 (uninitialized): PHY [mt7530-0:01] driver [MediaTek MT7531 PHY] (irq=148)
[    1.807736] mt7530 mdio-bus:00 lan3 (uninitialized): PHY [mt7530-0:02] driver [MediaTek MT7531 PHY] (irq=149)
[    1.827613] mt7530 mdio-bus:00 lan4 (uninitialized): PHY [mt7530-0:03] driver [MediaTek MT7531 PHY] (irq=150)
[    1.847700] mt7530 mdio-bus:00 wan (uninitialized): PHY [mt7530-0:04] driver [MediaTek MT7531 PHY] (irq=151)
[    1.858673] DSA: tree 0 setup
[    1.862541] xhci-mtk 1a0c0000.usb: xHCI Host Controller
[    1.867788] xhci-mtk 1a0c0000.usb: new USB bus registered, assigned bus number 1
[    1.876876] xhci-mtk 1a0c0000.usb: hcc params 0x01403198 hci version 0x96 quirks 0x0000000000210010
[    1.885973] xhci-mtk 1a0c0000.usb: irq 135, io mem 0x1a0c0000
[    1.892234] hub 1-0:1.0: USB hub found
[    1.896022] hub 1-0:1.0: 2 ports detected
[    1.900327] xhci-mtk 1a0c0000.usb: xHCI Host Controller
[    1.905585] xhci-mtk 1a0c0000.usb: new USB bus registered, assigned bus number 2
[    1.912998] xhci-mtk 1a0c0000.usb: Host supports USB 3.0 SuperSpeed
[    1.919336] usb usb2: We don't know the algorithms for LPM for this host, disabling LPM.
[    1.927799] hub 2-0:1.0: USB hub found
[    1.931604] hub 2-0:1.0: 1 port detected
[    1.936375] UBI: auto-attach mtd3
[    1.939704] ubi0: attaching mtd3
[    2.213731] ubi0: scanning is finished
[    2.221888] ubi0: attached mtd3 (name "ubi", size 125 MiB)
[    2.227388] ubi0: PEB size: 131072 bytes (128 KiB), LEB size: 126976 bytes
[    2.234276] ubi0: min./max. I/O unit sizes: 2048/2048, sub-page size 2048
[    2.241057] ubi0: VID header offset: 2048 (aligned 2048), data offset: 4096
[    2.248015] ubi0: good PEBs: 1000, bad PEBs: 0, corrupted PEBs: 0
[    2.254104] ubi0: user volume: 6, internal volumes: 1, max. volumes count: 128
[    2.261323] ubi0: max/mean erase counter: 5/2, WL threshold: 4096, image sequence number: 1945169456
[    2.270447] ubi0: available PEBs: 0, total reserved PEBs: 1000, PEBs reserved for bad PEB handling: 20
[    2.279777] ubi0: background thread "ubi_bgt0d" started, PID 460
[    2.281002] FIT: Default configuration: "config-1" (OpenWrt linksys_e8450-ubi)
[    2.293066] FIT:           kernel sub-image 0x00001000..0x0055532e "kernel-1" (ARM64 OpenWrt Linux-5.15.35)
[    2.302906] FIT:          flat_dt sub-image 0x00556000..0x0055d6f9 "fdt-1" (ARM64 OpenWrt linksys_e8450-ubi device tree blob)
[    2.314303] FIT:       filesystem sub-image 0x0055e000..0x00b66fff "rootfs-1" (ARM64 OpenWrt linksys_e8450-ubi rootfs)
[    2.325088] FIT: selecting configured loadable "rootfs-1" to be root filesystem
[    2.332393]  ubiblock0_4: p1(rootfs-1)
[    2.332586] block ubiblock0_4: created from ubi0:4(fit)
[    2.345022] VFS: Mounted root (squashfs filesystem) readonly on device 259:0.
[    2.352396] Freeing unused kernel memory: 448K
[    2.411190] Run /sbin/init as init process
[    2.415280]   with arguments:
[    2.418236]     /sbin/init
[    2.420934]   with environment:
[    2.424077]     HOME=/
[    2.426427]     TERM=linux
[    2.608704] init: Console is alive
[    2.612323] init: - watchdog -
[    2.671949] random: crng init done
[    2.939254] kmodloader: loading kernel modules from /etc/modules-boot.d/*
[    2.961843] usbcore: registered new interface driver usb-storage
[    2.968721] usbcore: registered new interface driver uas
[    2.974278] kmodloader: done loading kernel modules from /etc/modules-boot.d/*
[    2.988813] init: - preinit -
[    3.262416] mtk_soc_eth 1b100000.ethernet eth0: configuring for fixed/2500base-x link mode
[    3.270781] mtk_soc_eth 1b100000.ethernet eth0: Link is Up - 2.5Gbps/Full - flow control rx/tx
[    3.278562] mt7530 mdio-bus:00 lan1: configuring for phy/gmii link mode
[    3.716249] mt7530 mdio-bus:00 lan1: Link is Up - 100Mbps/Full - flow control off
[    3.723783] IPv6: ADDRCONF(NETDEV_CHANGE): lan1: link becomes ready
[    7.335935] mount_root: loading kmods from internal overlay
[    7.348649] kmodloader: loading kernel modules from //etc/modules-boot.d/*
[    7.356158] kmodloader: done loading kernel modules from //etc/modules-boot.d/*
[    7.456939] UBIFS (ubi0:5): Mounting in unauthenticated mode
[    7.462716] UBIFS (ubi0:5): background thread "ubifs_bgt0_5" started, PID 548
[    7.479620] UBIFS (ubi0:5): recovery needed
[    7.532923] UBIFS (ubi0:5): recovery completed
[    7.537452] UBIFS (ubi0:5): UBIFS: mounted UBI device 0, volume 5, name "rootfs_data"
[    7.545290] UBIFS (ubi0:5): LEB size: 126976 bytes (124 KiB), min./max. I/O unit sizes: 2048 bytes/2048 bytes
[    7.555201] UBIFS (ubi0:5): FS size: 90533888 bytes (86 MiB, 713 LEBs), max 724 LEBs, journal size 4571136 bytes (4 MiB, 36 LEBs)
[    7.566849] UBIFS (ubi0:5): reserved for root: 4276138 bytes (4175 KiB)
[    7.573459] UBIFS (ubi0:5): media format: w5/r0 (latest is w5/r0), UUID 5DB849B8-0282-4F4E-B5F8-73F81363652E, small LPT model
[    7.585394] block: attempting to load /tmp/ubifs_cfg/upper/etc/config/fstab
[    7.594924] block: extroot: not configured
[    7.599139] UBIFS (ubi0:5): un-mount UBI device 0
[    7.603892] UBIFS (ubi0:5): background thread "ubifs_bgt0_5" stops
[    7.612491] UBIFS (ubi0:5): Mounting in unauthenticated mode
[    7.618240] UBIFS (ubi0:5): background thread "ubifs_bgt0_5" started, PID 551
[    7.657140] UBIFS (ubi0:5): UBIFS: mounted UBI device 0, volume 5, name "rootfs_data"
[    7.665031] UBIFS (ubi0:5): LEB size: 126976 bytes (124 KiB), min./max. I/O unit sizes: 2048 bytes/2048 bytes
[    7.674948] UBIFS (ubi0:5): FS size: 90533888 bytes (86 MiB, 713 LEBs), max 724 LEBs, journal size 4571136 bytes (4 MiB, 36 LEBs)
[    7.686598] UBIFS (ubi0:5): reserved for root: 4276138 bytes (4175 KiB)
[    7.693208] UBIFS (ubi0:5): media format: w5/r0 (latest is w5/r0), UUID 5DB849B8-0282-4F4E-B5F8-73F81363652E, small LPT model
[    7.761240] block: attempting to load /tmp/ubifs_cfg/upper/etc/config/fstab
[    7.770772] block: extroot: not configured
[    7.776029] mount_root: switching to ubifs overlay
[    7.783469] overlayfs: null uuid detected in lower fs '/', falling back to xino=off,index=off,nfs_export=off.
[    7.796190] urandom-seed: Seeding with /etc/urandom.seed
[    7.838305] mt7530 mdio-bus:00 lan1: Link is Down
[    7.846797] procd: - early -
[    7.849763] procd: - watchdog -
[    8.400350] procd: - watchdog -
[    8.405184] procd: - ubus -
[    8.460335] procd: - init -
[    8.739108] urngd: v1.0.2 started.
[    8.815774] kmodloader: loading kernel modules from /etc/modules.d/*
[    8.843157] Loading modules backported from Linux version v5.15.33-0-g06f50ca83ace
[    8.850736] Backport generated by backports.git v5.15.33-1-0-g183c4ab2
[    8.914792] ieee80211 phy0: Selected rate control algorithm 'minstrel_ht'
[    8.926985] mt7915e 0000:01:00.0: assign IRQ: got 146
[    8.932155] mt7915e 0000:01:00.0: enabling device (0000 -> 0002)
[    8.938252] mt7915e 0000:01:00.0: enabling bus mastering
[    8.973725] mt7622-wmac 18000000.wmac: HW/SW Version: 0x8a108a10, Build Time: 20190801210006a
[    8.973725]
[    9.052094] mt7622-wmac 18000000.wmac: N9 Firmware Version: 2.0, Build Time: 20200131180931
[    9.061395] mtk-pcie 1a143000.pcie: msi#0 address_hi 0x0 address_lo 0x44e950c0
[    9.118080] mt7915e 0000:01:00.0: HW/SW Version: 0x8a108a10, Build Time: 20201105222230a
[    9.118080]
[    9.245943] mt7915e 0000:01:00.0: WM Firmware Version: ____000000, Build Time: 20201105222304
[    9.308873] mt7915e 0000:01:00.0: WA Firmware Version: DEV_000000, Build Time: 20201105222323
[    9.455629] PPP generic driver version 2.4.2
[    9.461275] NET: Registered PF_PPPOX protocol family
[    9.472394] kmodloader: done loading kernel modules from /etc/modules.d/*
[   12.187861] mtk_soc_eth 1b100000.ethernet eth0: Link is Down
[   12.197749] mtk_soc_eth 1b100000.ethernet eth0: configuring for fixed/2500base-x link mode
[   12.206728] mtk_soc_eth 1b100000.ethernet eth0: Link is Up - 2.5Gbps/Full - flow control rx/tx
[   12.215436] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[   12.224160] mt7530 mdio-bus:00 lan1: configuring for phy/gmii link mode
[   12.236020] br-lan: port 1(lan1) entered blocking state
[   12.241285] br-lan: port 1(lan1) entered disabled state
[   12.255629] device lan1 entered promiscuous mode
[   12.260271] device eth0 entered promiscuous mode
[   12.277662] mt7530 mdio-bus:00 lan2: configuring for phy/gmii link mode
[   12.288154] br-lan: port 2(lan2) entered blocking state
[   12.293474] br-lan: port 2(lan2) entered disabled state
[   12.300711] device lan2 entered promiscuous mode
[   12.311286] mt7530 mdio-bus:00 lan3: configuring for phy/gmii link mode
[   12.321042] br-lan: port 3(lan3) entered blocking state
[   12.326341] br-lan: port 3(lan3) entered disabled state
[   12.334272] device lan3 entered promiscuous mode
[   12.345191] mt7530 mdio-bus:00 lan4: configuring for phy/gmii link mode
[   12.356505] br-lan: port 4(lan4) entered blocking state
[   12.361799] br-lan: port 4(lan4) entered disabled state
[   12.369975] device lan4 entered promiscuous mode
[   12.383143] mt7530 mdio-bus:00 wan: configuring for phy/gmii link mode
[   12.394762] mt7530 mdio-bus:00 wan: Link is Up - 1Gbps/Full - flow control rx/tx
[   12.402487] IPv6: ADDRCONF(NETDEV_CHANGE): wan: link becomes ready
[   15.088364] mt7530 mdio-bus:00 lan1: Link is Up - 100Mbps/Full - flow control off
[   15.096002] br-lan: port 1(lan1) entered blocking state
[   15.101284] br-lan: port 1(lan1) entered forwarding state
[   15.110784] IPv6: ADDRCONF(NETDEV_CHANGE): br-lan: link becomes ready
[   15.592049] br-lan: port 5(wlan1) entered blocking state
[   15.597399] br-lan: port 5(wlan1) entered disabled state
[   15.603233] device wlan1 entered promiscuous mode
[   15.608205] br-lan: port 5(wlan1) entered blocking state
[   15.613592] br-lan: port 5(wlan1) entered forwarding state
[   16.101280] br-lan: port 5(wlan1) entered disabled state
[   81.238801] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready
[   81.245320] br-lan: port 5(wlan1) entered blocking state
[   81.250640] br-lan: port 5(wlan1) entered forwarding state
[28257.951392] device wlan1 left promiscuous mode
[28257.956221] br-lan: port 5(wlan1) entered disabled state
[28258.655858] br-lan: port 5(wlan1) entered blocking state
[28258.661222] br-lan: port 5(wlan1) entered disabled state
[28258.667180] device wlan1 entered promiscuous mode
[28258.679838] device wlan1 left promiscuous mode
[28258.684615] br-lan: port 5(wlan1) entered disabled state
[28258.954204] br-lan: port 5(wlan1) entered blocking state
[28258.959545] br-lan: port 5(wlan1) entered disabled state
[28258.965227] device wlan1 entered promiscuous mode
[58856.957171] mt7530 mdio-bus:00 lan4: Link is Up - 10Mbps/Full - flow control rx/tx
[58856.964876] br-lan: port 4(lan4) entered blocking state
[58856.970152] br-lan: port 4(lan4) entered forwarding state
[58858.448160] mt7530 mdio-bus:00 lan4: Link is Down
[58858.453776] br-lan: port 4(lan4) entered disabled state
[58860.871838] mt7530 mdio-bus:00 lan4: Link is Up - 10Mbps/Full - flow control rx/tx
[58860.879560] br-lan: port 4(lan4) entered blocking state
[58860.884808] br-lan: port 4(lan4) entered forwarding state
[58862.549897] mt7530 mdio-bus:00 lan4: Link is Down
[58862.554680] br-lan: port 4(lan4) entered disabled state
[58869.232212] mt7530 mdio-bus:00 lan4: Link is Up - 1Gbps/Full - flow control rx/tx
[58869.239850] br-lan: port 4(lan4) entered blocking state
[58869.245100] br-lan: port 4(lan4) entered forwarding state
[58872.898089] mt7530 mdio-bus:00 lan4: Link is Down
[58872.902924] br-lan: port 4(lan4) entered disabled state
[58875.997669] mt7530 mdio-bus:00 lan4: Link is Up - 1Gbps/Full - flow control rx/tx
[58876.005312] br-lan: port 4(lan4) entered blocking state
[58876.010613] br-lan: port 4(lan4) entered forwarding state

I also have the logread if needed.

Note: As a next test I am changing exclusively to WPA3 security mode

[59691.958173] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready

This appears on change and the interface is restored without needing to reboot the router.
I am wondering if it is normal operation that
[59626.940986] device wlan1 entered promiscuous mode occurs so much

Or if my issue is with IPv6 this whole time. I'll be careful not to test two things at once.