intel wifi blues

aa6kj · 2026-08-14 13:33:45

I have wifi drop out issues and I see on dmesg the following:

[34958.551798] iwlwifi 0000:00:14.3: Microcode SW error detected. Restarting 0x0.
[34958.551898] iwlwifi 0000:00:14.3: Start IWL Error Log Dump:
[34958.551899] iwlwifi 0000:00:14.3: Transport status: 0x0000004A, valid: 6
[34958.551901] iwlwifi 0000:00:14.3: Loaded firmware version: 77.aa2dd297.0 Qu-c0-jf-b0-77.ucode
[34958.551903] iwlwifi 0000:00:14.3: 0x0000003F | ADVANCED_SYSASSERT          
[34958.551905] iwlwifi 0000:00:14.3: 0x0001C412 | interruptlink2
[34958.551906] iwlwifi 0000:00:14.3: 0x000601FF | data1
[34958.551907] iwlwifi 0000:00:14.3: 0x00812DA0 | data2
[34958.551908] iwlwifi 0000:00:14.3: 0x0001C412 | data3
[34958.551962] iwlwifi 0000:00:14.3: Start IWL Error Log Dump:
[34958.551963] iwlwifi 0000:00:14.3: Transport status: 0x0000004A, valid: 7
[34958.551965] iwlwifi 0000:00:14.3: 0x20000070 | NMI_INTERRUPT_LMAC_FATAL
[34958.551966] iwlwifi 0000:00:14.3: 0x804707E2 | umac interruptlink2
[34958.551967] iwlwifi 0000:00:14.3: 0x00000400 | umac data1
[34958.551968] iwlwifi 0000:00:14.3: 0x804707E2 | umac data2
[34958.551970] iwlwifi 0000:00:14.3: 0x00000000 | umac data3
[34958.551971] iwlwifi 0000:00:14.3: 0x009D010C | last host cmd
[34958.552006] iwlwifi 0000:00:14.3: IML/ROM dump:
[34958.552007] iwlwifi 0000:00:14.3: 0x00000003 | IML/ROM error/state
[34958.552016] iwlwifi 0000:00:14.3: 0x00005669 | IML/ROM data1
[34958.552059] iwlwifi 0000:00:14.3: 0x00000080 | IML/ROM WFPM_AUTH_KEY_0
[34958.552117] iwlwifi 0000:00:14.3: Fseq Registers:
[34958.552123] iwlwifi 0000:00:14.3: 0x60000000 | FSEQ_ERROR_CODE
[34958.552146] iwlwifi 0000:00:14.3: 0x80260000 | FSEQ_TOP_INIT_VERSION
[34958.552172] iwlwifi 0000:00:14.3: 0x00020006 | FSEQ_CNVIO_INIT_VERSION
[34958.552197] iwlwifi 0000:00:14.3: 0x0000A384 | FSEQ_OTP_VERSION
[34958.552223] iwlwifi 0000:00:14.3: 0x6D492308 | FSEQ_TOP_CONTENT_VERSION
[34958.552229] iwlwifi 0000:00:14.3: 0x4552414E | FSEQ_ALIVE_TOKEN
[34958.552251] iwlwifi 0000:00:14.3: 0x02000300 | FSEQ_CNVI_ID
[34958.552277] iwlwifi 0000:00:14.3: 0x00000201 | FSEQ_CNVR_ID
[34958.552302] iwlwifi 0000:00:14.3: 0x02000300 | CNVI_AUX_MISC_CHIP
[34958.552310] iwlwifi 0000:00:14.3: 0x00000201 | CNVR_AUX_MISC_CHIP
[34958.552335] iwlwifi 0000:00:14.3: 0x0000485B | CNVR_SCU_SD_REGS_SD_REG_DIG_DCDC_VTRIM
[34958.552390] iwlwifi 0000:00:14.3: 0xA5A5A5A2 | CNVR_SCU_SD_REGS_SD_REG_ACTIVE_VDIG_MIRROR
[34958.552413] iwlwifi 0000:00:14.3: 0x00020006 | FSEQ_PREV_CNVIO_INIT_VERSION
[34958.552439] iwlwifi 0000:00:14.3: 0x00260000 | FSEQ_WIFI_FSEQ_VERSION
[34958.552464] iwlwifi 0000:00:14.3: 0x00260000 | FSEQ_BT_FSEQ_VERSION
[34958.552489] iwlwifi 0000:00:14.3: 0x000000FA | FSEQ_CLASS_TP_VERSION
[34958.552501] iwlwifi 0000:00:14.3: UMAC CURRENT PC: 0x804702f0
[34958.552524] iwlwifi 0000:00:14.3: LMAC1 CURRENT PC: 0xd0
[34958.552557] iwlwifi 0000:00:14.3: WRT: Collecting data: ini trigger 5 fired (delay=0ms).
[34958.552589] iwlwifi 0000:00:14.3: Hardware error detected. Restarting.
[34958.562473] iwlwifi 0000:00:14.3: WRT: trying to collect phy prph at time point: 5, skipping
[34958.905454] iwlwifi 0000:00:14.3: Device error - SW reset
[34958.905894] ieee80211 phy0: Hardware restart was requested
[34959.096133] iwlwifi 0000:00:14.3: restart completed
[35206.754743] iwlwifi 0000:00:14.3: Unhandled alg: 0x703
[35206.754767] iwlwifi 0000:00:14.3: Unhandled alg: 0x703

lspci identifies the device as:

00:14.3 Network controller: Intel Corporation Ice Lake-LP PCH CNVi WiFi (rev 30)

I have currently the following module config: options iwlmvm power_scheme=1

Any thoughts how to fix this?

Last edited by aa6kj (2026-08-14 16:55:41)

seth · 2026-08-14 15:16:55

Please use [code][/code] tags. Edit your post in this regard.

The firmware crashed, I'd first look at the circumstances (ie. pot. triggers), ie. your journal.
In doubt post your complete system journal for the boot after such drop-uots

sudo journalctl -b | nc termbin.com 9999

Also check

systool -vm iwlmvm; systool -vm iwlwifi

to see whether your parameter is actually applied and/or power saving is maybe enabled in iwlwifi

aa6kj · 2026-08-14 16:59:35

journalctl done. Here is the output from systool (this is, by the way, on 7.1.8-arch1-3 but it has been there earlier too):

Module = "iwlmvm"

  Attributes:
    coresize            = "716800"
    import_ns           = "IWLWIFI"
    initsize            = "0"
    initstate           = "live"
    refcnt              = "0"
    srcversion          = "D5C00E28E2708D26D5DECEA"
    taint               = ""
    uevent              = <store method only>

  Parameters:
    power_scheme        = "1"

  Sections:
    .altinstr_replacement= "0xffffffffc1659415"
    .altinstructions    = "0xffffffffc13c5000"
    .bss                = "0xffffffffc13a58e0"
    .call_sites         = "0xffffffffc13def98"
    .data               = "0xffffffffc13a5920"
    .exit.data          = "0xffffffffc13a59b0"
    .exit.text          = "0xffffffffc16593f0"
    .gnu.linkonce.this_module= "0xffffffffc13a5a00"
    .ibt_endbr_seal     = "0xffffffffc13e47ac"
    .init.data          = "0xffffffffc1463000"
    .init.text          = "0xffffffffc05f0000"
    .note.Linux         = "0xffffffffc13f6908"
    .note.gnu.build-id  = "0xffffffffc13f68e4"
    .note.gnu.property  = "0xffffffffc13ddf90"
    .orc_header         = "0xffffffffc13f6938"
    .orc_unwind         = "0xffffffffc13e4c5c"
    .orc_unwind_ip      = "0xffffffffc13ef714"
    .printk_index       = "0xffffffffc13a59b8"
    .retpoline_sites    = "0xffffffffc13ddff8"
    .return_sites       = "0xffffffffc13de048"
    .rodata             = "0xffffffffc13c5080"
    .smp_locks          = "0xffffffffc13dde78"
    .static_call_sites  = "0xffffffffc1280210"
    .strtab             = "0xffffffffc14740a8"
    .symtab             = "0xffffffffc1463008"
    .text               = "0xffffffffc1600000"
    __bug_table         = "0xffffffffc13a2000"
    __jump_table        = "0xffffffffc1280000"
    __mcount_loc        = "0xffffffffc13dc440"
    __param             = "0xffffffffc13ddfd0"
    __patchable_function_entries= "0xffffffffc13a3e70"

Module = "iwlwifi"

  Attributes:
    coresize            = "622592"
    initsize            = "0"
    initstate           = "live"
    refcnt              = "1"
    srcversion          = "BB99863224B7B6F70A210F8"
    taint               = ""
    uevent              = <store method only>

  Parameters:
    11n_disable         = "0"
    amsdu_size          = "0"
    bt_coex_active      = "Y"
    debug               = "0"
    disable_11ac        = "N"
    disable_11ax        = "N"
    disable_11be        = "N"
    enable_ini          = "16"
    fw_restart          = "Y"
    led_mode            = "0"
    nvm_file            = "(null)"
    power_level         = "0"
    power_save          = "N"
    remove_when_gone    = "N"
    swcrypto            = "0"
    uapsd_disable       = "3"

  Sections:
    .altinstr_replacement= "0xffffffffc0c8d31a"
    .altinstructions    = "0xffffffffc112a7a0"
    .bss                = "0xffffffffc10cb1e0"
    .call_sites         = "0xffffffffc1146485"
    .data               = "0xffffffffc10cb220"
    .exit.data          = "0xffffffffc10cd880"
    .exit.text          = "0xffffffffc0c8d2f0"
    .gnu.linkonce.this_module= "0xffffffffc10ced00"
    .ibt_endbr_seal     = "0xffffffffc114a529"
    .init.data          = "0xffffffffc115a000"
    .init.text          = "0xffffffffc05c0000"
    .note.Linux         = "0xffffffffc1158274"
    .note.gnu.build-id  = "0xffffffffc11570a8"
    .note.gnu.property  = "0xffffffffc1145258"
    .orc_header         = "0xffffffffc11582a4"
    .orc_unwind         = "0xffffffffc114a819"
    .orc_unwind_ip      = "0xffffffffc115206d"
    .printk_index       = "0xffffffffc10cd888"
    .ref.data           = "0xffffffffc10cdcc0"
    .retpoline_sites    = "0xffffffffc11457d5"
    .return_sites       = "0xffffffffc114591d"
    .rodata             = "0xffffffffc112a800"
    .smp_locks          = "0xffffffffc1144e08"
    .static_call.text   = "0xffffffffc0c8d330"
    .static_call_sites  = "0xffffffffc0fa3280"
    .strtab             = "0xffffffffc1170568"
    .symtab             = "0xffffffffc115a008"
    .text               = "0xffffffffc0c52000"
    __bpf_raw_tp_map    = "0xffffffffc10cd920"
    __bug_table         = "0xffffffffc10c9000"
    __jump_table        = "0xffffffffc0fa3000"
    __kflagstab         = "0xffffffffc112a708"
    __ksymtab           = "0xffffffffc112a000"
    __ksymtab_strings   = "0xffffffffc11570cc"
    __mcount_loc        = "0xffffffffc1143c06"
    __param             = "0xffffffffc1145298"
    __patchable_function_entries= "0xffffffffc10c9d00"
    __tracepoint_check  = "0xffffffffc1144fb0"
    __tracepoints_ptrs  = "0xffffffffc1145518"
    __tracepoints_strings= "0xffffffffc1145580"
    __tracepoints       = "0xffffffffc10ce440"
    _ftrace_events      = "0xffffffffc10cdc00"

seth · 2026-08-14 18:08:42

Power saving is disabled in the kernel modules, so that's a dead end.
About the journal: you should have gotten a url in return - you gotta share that with us

aa6kj · 2026-08-14 19:53:03

Well, it doesn't - that's odd. No messages of any kind. I have netcat installed.

aa6kj · 2026-08-14 19:53:58

Ha - tried it again and now it did! Here it is: https://termbin.com/peez

seth · 2026-08-14 21:08:49

Aug 12 23:52:40 archlinux kernel: Linux version 7.1.8-arch1-3 (linux@archlinux) (gcc (GCC) 16.2.1 20260810, GNU ld (GNU Binutils) 2.47) #1 SMP PREEMPT_DYNAMIC Tue, 11 Aug 2026 09:16:08 +0000
…
Aug 12 23:54:52 laptop systemd-sleep[2139]: Performing sleep operation 'suspend'...
Aug 12 23:54:52 laptop kernel: PM: suspend entry (deep)
Aug 12 23:54:52 laptop kernel: Filesystems sync: 0.033 seconds
Aug 13 07:28:28 laptop kernel: Freezing user space processes
Aug 13 07:28:28 laptop systemd-logind[769]: Lid opened.
…
Aug 13 08:03:01 laptop kernel: iwlwifi 0000:00:14.3: Microcode SW error detected. Restarting 0x0.
…
Aug 13 08:15:22 laptop kernel: iwlwifi 0000:00:14.3: Microcode SW error detected. Restarting 0x0.
…
Aug 13 08:26:34 laptop QK4.bin[3086]: Sp

You booted late at night, sent the system to sleep, next morning 7:30 the lid opens, system is fine - 35 minutes later the firmware crashes and then 12 minutes later again. Then remains stable for at least 11 minutes.

No signs of dual booting, no concurrent network daemons. No roaming - your wifi connection rather seems to survive the reset.

What ironically sticks out is

Aug 12 23:52:55 laptop kdeconnectd[1474]: Cannot find a compatible running Bluez. Please check the Bluez installation. QtBluetooth requires at least BlueZ version 5.
Aug 13 07:28:28 laptop kdeconnectd[1474]: No local bluetooth adapter found
Aug 13 07:28:28 laptop kdeconnectd[1474]: No local bluetooth adapter found
Aug 13 07:28:58 laptop kdeconnectd[1474]: Cannot find Bluez 5 adapter for device search false

Wireless-AC 9462 has a bluetooth chip integrated - do you disable it in the BIOS ?
Do you actively use kdeconnect for anything?

aa6kj · 2026-08-14 21:43:55

I have disabled bluetooth:
blacklist btusb
blacklist bluetooth

I read somewhere that there could be RF interference between bluetooth and wifi since they are on the same chip. This did not help. I left it disabled because I am not using bluetooth for anything.

The connection survives but there is serious lag for some tens of seconds.

seth · 2026-08-15 15:52:54

Bluetooth /can/ interfere on 2.4GHz but you should either rfkill the chip or disable it in the BIOS.
Or just not actively use it

But the firmware crashes happened before that anyway?
You could test the behavior of older firmware - *moving* away /usr/lib/firmware/iwlwifi-Qu-c0-jf-b0-77.ucode.zst will make you use -74 and so on.
*Moving* in case older firmware fails to operate your chip at all …

Also "iwlwifi.swcrypto=1" might be worth a shot (traffic encryption will then happen on the CPU, ath9 used to have that as systematic problem) and "iwlwifi.debug=0xffffffff" might provide further hints about the context (by spamming your journal)

aa6kj · 2026-08-15 18:24:25

rfkill shows that bluetooth is (soft) blocked. I have not found anything in bios to disable it at the hardware level.

I have tried swcrypto but it complains that it cannot be set to software:

iwlwifi 0000:00:14.3: iwlmvm doesn't allow to disable HW crypto, check swcrypto module parameter

The problem has been around for a long time but I just started recently seeing more of it (and more network hiccups), so rolling back firmware releases is not a tempting option.

I will still try to play with 11n_disable settings and see if those have any effect. If not, I will enable debug.

Last edited by aa6kj (2026-08-15 18:24:47)

seth · 2026-08-15 19:43:15

Have you meanwhile unblacklisted bluetooth?
The chip active but uncontrolled by a driver (or firmware) might be an issue.

aa6kj · 2026-08-15 20:58:45

I enabled bluetooth but that does not run very smoothly either (based on dmesg) - have not tried if it works or not:

[    6.811656] Bluetooth: Core ver 2.22
[    6.811695] NET: Registered PF_BLUETOOTH protocol family
[    6.811697] Bluetooth: HCI device and connection manager initialized
[    6.811702] Bluetooth: HCI socket layer initialized
[    6.811704] Bluetooth: L2CAP socket layer initialized
[    6.811710] Bluetooth: SCO socket layer initialized
[    6.850401] Bluetooth: hci0: Found device firmware: intel/ibt-19-32-0.sfi
[    6.850472] Bluetooth: hci0: Boot Address: 0x24800
[    6.850475] Bluetooth: hci0: Firmware Version: 83-7.26
[    6.851984] Bluetooth: hci0: FW download error recovery failed (-19)
[    6.852265] Bluetooth: hci0: sending frame failed (-19)
[    6.852437] Bluetooth: hci0: Reading supported features failed (-19)
[    6.852440] Bluetooth: hci0: Error reading debug features
[    6.852443] Bluetooth: hci0: HCI LE Coded PHY feature bit is set, but its usage is not supported.
[    6.852455] Bluetooth: hci0: sending frame failed (-19)
[    6.853242] Bluetooth: hci0: Failed to read MSFT supported features (-19)
[    7.367421] Bluetooth: hci0: Bootloader revision 0.0 build 0 week 11 2017
[    7.368412] Bluetooth: hci0: Device revision is 2
[    7.368416] Bluetooth: hci0: Secure boot is enabled
[    7.368417] Bluetooth: hci0: OTP lock is enabled
[    7.368418] Bluetooth: hci0: API lock is enabled
[    7.368418] Bluetooth: hci0: Debug lock is disabled
[    7.368419] Bluetooth: hci0: Minimum firmware build 1 week 10 2014
[    7.371453] Bluetooth: hci0: Found device firmware: intel/ibt-19-32-0.sfi
[    7.371504] Bluetooth: hci0: Boot Address: 0x24800
[    7.371506] Bluetooth: hci0: Firmware Version: 83-7.26
[    9.042263] Bluetooth: hci0: Waiting for firmware download to complete
[    9.042396] Bluetooth: hci0: Firmware loaded in 1631775 usecs
[    9.042437] Bluetooth: hci0: Waiting for device to boot
[    9.057736] Bluetooth: hci0: Device booted in 14962 usecs
[    9.062124] Bluetooth: hci0: Found Intel DDC parameters: intel/ibt-19-32-0.ddc
[    9.064545] Bluetooth: hci0: Applying Intel DDC parameters completed
[    9.065563] Bluetooth: hci0: Firmware revision 0.0 build 83 week 7 2026
[    9.067534] Bluetooth: hci0: HCI LE Coded PHY feature bit is set, but its usage is not supported.

And no luck with 11n_disable settings.

seth · 2026-08-15 22:59:35

based on dmesg

Do you mean that snippet or do you still see firmware crashes/wifi resets?

seth wrote:

You could test the behavior of older firmware - *moving* away /usr/lib/firmware/iwlwifi-Qu-c0-jf-b0-77.ucode.zst will make you use -74 and so on.
*Moving* in case older firmware fails to operate your chip at all …

Disabling 11n isn't really a great option either, you'll be confined to 54Mbps, https://en.wikipedia.org/wiki/IEEE_802.11#Generations

aa6kj · 2026-08-15 23:16:32

> Do you mean that snippet or do you still see firmware crashes/wifi resets?

Based on dmesg was referring to iwlwifi crashes that this thread started with. So, none of the 11n_disabled settings helped wifi.

> Disabling 11n isn't really a great option either, you'll be confined to 54Mbps.

Yes, but if it had worked, I wouldn't have the wifi stalls. But no change.
I have now bluetooth enabled, all module options removed. I had did those changes a long time ago because of wifi instability but I bet a lot has changed in
the driver since then. So, starting from the beginning and hoping for the best...

aa6kj · 2026-08-16 02:05:13

And no change. Still happens. Oh well, probably just need to trash this laptop and get something else.

seth · 2026-08-16 06:08:31

You're typically able to just replace the wifi card (they actually literally fuse more often than one would think) - so you have tried to downgrade the firmware?

topcat01 · 2026-08-16 17:35:42

I wonder if it works with another network/access point. Since you are using NetworkManager, do you get different results using iwd? It's really odd that Intel wifi does not work properly.

aa6kj · 2026-08-16 21:38:43

My AP runs openwrt (linux). Anyway, I ended up ordering a small (physical size) USB WIFI dongle for the laptop. Next time no intel wifi for me. Anyway, thanks guys for your help!

seth · 2026-08-16 21:54:51

wpa_supplicant struggles w/ WPA3, you can try https://wiki.archlinux.org/title/Networ … Fi_backend
Not sure how prone that is to crashing the firmware, though.

USB WIFI dongle for the laptop. Next time no intel wifi for me.

Do you know what chip it has and can you still cancel the order?

Arch Linux

#1 2026-08-14 13:33:45

intel wifi blues

#2 2026-08-14 15:16:55

Re: intel wifi blues

#3 2026-08-14 16:59:35

Re: intel wifi blues

#4 2026-08-14 18:08:42

Re: intel wifi blues

#5 2026-08-14 19:53:03

Re: intel wifi blues

#6 2026-08-14 19:53:58

Re: intel wifi blues

#7 2026-08-14 21:08:49

Re: intel wifi blues

#8 2026-08-14 21:43:55

Re: intel wifi blues

#9 2026-08-15 15:52:54

Re: intel wifi blues

#10 2026-08-15 18:24:25

Re: intel wifi blues

#11 2026-08-15 19:43:15

Re: intel wifi blues

#12 2026-08-15 20:58:45

Re: intel wifi blues

#13 2026-08-15 22:59:35

Re: intel wifi blues

#14 2026-08-15 23:16:32

Re: intel wifi blues

#15 2026-08-16 02:05:13

Re: intel wifi blues

#16 2026-08-16 06:08:31

Re: intel wifi blues

#17 2026-08-16 17:35:42

Re: intel wifi blues

#18 2026-08-16 21:38:43

Re: intel wifi blues

#19 2026-08-16 21:54:51

Re: intel wifi blues

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