AX210 low add velocity, but it surely doesn’t happen continuously.

Howdy.
I’ve debian 12 with proxmox on my homelab server with asrock b450m pro4 and PCI AX210.
I’ve good velocity hyperlink:

iw dev wlp1s0 hyperlink
Linked to 78:c5:f8:1e:01:40 (on wlp1s0)
        SSID: DevOpsNet
        freq: 5220
        RX: 1149566028 bytes (31544013 packets)
        TX: 2361509534 bytes (31544839 packets)
        sign: -49 dBm
        rx bitrate: 2161.3 MBit/s 160MHz HE-MCS 10 HE-NSS 2 HE-GI 0 HE-DCM 0
        tx bitrate: 1814.8 MBit/s 160MHz HE-MCS 9 HE-NSS 2 HE-GI 1 HE-DCM 0

        bss flags:      short-preamble short-slot-time
        dtim interval:    1
        beacon int:     100

01:00.0 Community controller [0280]: Intel Company Wi-Fi 6 AX210/AX211/AX411 160MHz [8086:2725] (rev 1a)
        Subsystem: Intel Company Wi-Fi 6 AX210 160MHz [8086:0024]
        Kernel driver in use: iwlwifi
        Kernel modules: iwlwifi

However add velocity to low, see iperf from my PC with cable Eth connection to router and my homelab server with AX210:

However obtain result’s good:

I do not perceive what the issue is, because the drawback does not happen continuously. Whereas I used to be penning this message, the add velocity was restored:

dmesg | grep 'iwlwifi'

[734332.726351] iwlwifi 0000:01:00.0: Begin IWL Error Log Dump:
[734332.726352] iwlwifi 0000:01:00.0: Transport standing: 0x0000004A, legitimate: 7
[734332.726354] iwlwifi 0000:01:00.0: 0x20000070 | NMI_INTERRUPT_LMAC_FATAL
[734332.726356] iwlwifi 0000:01:00.0: 0x00000000 | umac branchlink1
[734332.726358] iwlwifi 0000:01:00.0: 0x8046DE86 | umac branchlink2
[734332.726360] iwlwifi 0000:01:00.0: 0x8048F8A6 | umac interruptlink1
[734332.726361] iwlwifi 0000:01:00.0: 0x8048F8A6 | umac interruptlink2
[734332.726363] iwlwifi 0000:01:00.0: 0x00000002 | umac data1
[734332.726365] iwlwifi 0000:01:00.0: 0x8048F8A6 | umac data2
[734332.726366] iwlwifi 0000:01:00.0: 0x00000000 | umac data3
[734332.726368] iwlwifi 0000:01:00.0: 0x00000056 | umac main
[734332.726370] iwlwifi 0000:01:00.0: 0xFB5C9AEB | umac minor
[734332.726371] iwlwifi 0000:01:00.0: 0x02985078 | body pointer
[734332.726373] iwlwifi 0000:01:00.0: 0xC0886258 | stack pointer
[734332.726375] iwlwifi 0000:01:00.0: 0x00A5010C | final host cmd
[734332.726376] iwlwifi 0000:01:00.0: 0x00000000 | isr standing reg
[734332.726422] iwlwifi 0000:01:00.0: IML/ROM dump:
[734332.726423] iwlwifi 0000:01:00.0: 0x00000B03 | IML/ROM error/state
[734332.726467] iwlwifi 0000:01:00.0: 0x00008020 | IML/ROM data1
[734332.726507] iwlwifi 0000:01:00.0: 0x00000090 | IML/ROM WFPM_AUTH_KEY_0
[734332.726548] iwlwifi 0000:01:00.0: Fseq Registers:
[734332.726569] iwlwifi 0000:01:00.0: 0x60000000 | FSEQ_ERROR_CODE
[734332.726590] iwlwifi 0000:01:00.0: 0x80440007 | FSEQ_TOP_INIT_VERSION
[734332.726611] iwlwifi 0000:01:00.0: 0x00080009 | FSEQ_CNVIO_INIT_VERSION
[734332.726632] iwlwifi 0000:01:00.0: 0x0000A652 | FSEQ_OTP_VERSION
[734332.726653] iwlwifi 0000:01:00.0: 0x00000002 | FSEQ_TOP_CONTENT_VERSION
[734332.726674] iwlwifi 0000:01:00.0: 0x4552414E | FSEQ_ALIVE_TOKEN
[734332.726695] iwlwifi 0000:01:00.0: 0x00400410 | FSEQ_CNVI_ID
[734332.726715] iwlwifi 0000:01:00.0: 0x00400410 | FSEQ_CNVR_ID
[734332.726736] iwlwifi 0000:01:00.0: 0x00400410 | CNVI_AUX_MISC_CHIP
[734332.726759] iwlwifi 0000:01:00.0: 0x00400410 | CNVR_AUX_MISC_CHIP
[734332.726782] iwlwifi 0000:01:00.0: 0x00009061 | CNVR_SCU_SD_REGS_SD_REG_DIG_DCDC_VTRIM
[734332.726805] iwlwifi 0000:01:00.0: 0x00000061 | CNVR_SCU_SD_REGS_SD_REG_ACTIVE_VDIG_MIRROR
[734332.726831] iwlwifi 0000:01:00.0: 0x00080009 | FSEQ_PREV_CNVIO_INIT_VERSION
[734332.726856] iwlwifi 0000:01:00.0: 0x00440007 | FSEQ_WIFI_FSEQ_VERSION
[734332.726877] iwlwifi 0000:01:00.0: 0x00440007 | FSEQ_BT_FSEQ_VERSION
[734332.726898] iwlwifi 0000:01:00.0: 0x000000DC | FSEQ_CLASS_TP_VERSION
[734332.726962] iwlwifi 0000:01:00.0: UMAC CURRENT PC: 0x8048f36c
[734332.726983] iwlwifi 0000:01:00.0: LMAC1 CURRENT PC: 0xd0
[734332.727121] iwlwifi 0000:01:00.0: WRT: Accumulating information: ini set off 4 fired (delay=0ms).
[734333.227775] iwlwifi 0000:01:00.0: WRT: Invalid buffer vacation spot
[734333.380293] iwlwifi 0000:01:00.0: WFPM_UMAC_PD_NOTIFICATION: 0x20
[734333.380331] iwlwifi 0000:01:00.0: WFPM_LMAC2_PD_NOTIFICATION: 0x1f
[734333.380364] iwlwifi 0000:01:00.0: WFPM_AUTH_KEY_0: 0x90
[734333.380393] iwlwifi 0000:01:00.0: CNVI_SCU_SEQ_DATA_DW9: 0x0

 That is my easy map.

My config /and so forth/community/interface:

auto wlp1s0
iface wlp1s0 inet static
        wpa-ssid DevOpsNet
        wpa-psk <MY PASSWORD>

auto vmbr0
iface vmbr0 inet static
    pre-up iw dev wlp1s0 set 4addr on
        deal with 192.168.3.44/24
        gateway 192.168.3.1
        bridge-ports wlp1s0
        bridge-stp off
        bridge-fd 0

I see errors in log, see in file journalctl-wifi.log