Iwlwifi - slow internet after a recent update

Support Network
1

Hi all.

After a recent update, maybe 2-3 weeks ago, my wifi connection started to sometime slow to a crawl.

Sometimes it fixes itself after a while, other times reloading the driver helps (modprobe -r iwlmvm && modprobe -r iwlwifi && sleep 10 && modprobe iwlwifi). But sometimes, none of these things help.

I have tried various kernel module options but nothing seems to help.

Looking for any advice on diagnosing this.

I’m pretty sure it’s not the uplink, because when I run speedtest on my phone (while my PC is having issues) it shows 150 Mbit/s as expected.

There’s nothing suspicious in the output of dmesg or journalctl, the latter looks like this:

Jan 25 20:54:07 mrr rtkit-daemon[1575]: Supervising 14 threads of 7 processes of 1 users.
Jan 25 20:54:47 mrr NetworkManager[799]: <debug> [1706216087.1080] connectivity: (p2p-dev-wlp7s0,IPv4,999) start fake request (fake result)
Jan 25 20:54:47 mrr NetworkManager[799]: <debug> [1706216087.1081] connectivity: (p2p-dev-wlp7s0,IPv6,1000) start fake request (fake result)
Jan 25 20:54:47 mrr NetworkManager[799]: <debug> [1706216087.1081] connectivity: (p2p-dev-wlp7s0,IPv4,999) check completed: FAKE; fake result
Jan 25 20:54:47 mrr NetworkManager[799]: <debug> [1706216087.1081] connectivity: (p2p-dev-wlp7s0,IPv6,1000) check completed: FAKE; fake result
Jan 25 20:54:52 mrr NetworkManager[799]: <debug> [1706216092.0804] connectivity: (wlp7s0,IPv6,1001) start request to 'http://ping.manjaro.org/check_network_status.txt' (try resolving 'ping.manjaro.org' using system resolver)
Jan 25 20:54:52 mrr NetworkManager[799]: <debug> [1706216092.0944] connectivity: (wlp7s0,IPv6,1001) check completed: LIMITED; check failed: (7) Couldn't connect to server


Jan 25 20:55:10 mrr NetworkManager[799]: <debug> [1706216110.9418] ndisc-lndp[0x560e578b7210,"wlp7s0"]: processing libndp events
Jan 25 20:55:10 mrr NetworkManager[799]: <debug> [1706216110.9418] ndisc-lndp[0x560e578b7210,"wlp7s0"]: received router advertisement at timestamp 190065.991 seconds
Jan 25 20:55:10 mrr NetworkManager[799]: <debug> [1706216110.9418] ndisc[0x560e578b7210,"wlp7s0"]: router-data: next lifetime expiration will happen: in 360.000 seconds
Jan 25 20:55:10 mrr NetworkManager[799]: <debug> [1706216110.9419] ndisc[0x560e578b7210,"wlp7s0"]: neighbor discovery configuration changed [S]:
Jan 25 20:55:10 mrr NetworkManager[799]: <debug> [1706216110.9419] ndisc[0x560e578b7210,"wlp7s0"]:   dhcp-level otherconf
Jan 25 20:55:10 mrr NetworkManager[799]: <debug> [1706216110.9419] ndisc[0x560e578b7210,"wlp7s0"]:   hop limit      : 64
Jan 25 20:55:10 mrr NetworkManager[799]: <debug> [1706216110.9419] ndisc[0x560e578b7210,"wlp7s0"]:   dns_server 2a02:6b68:a816:0:ea9f:80ff:fe59:b3f9 exp 359.999
Jan 25 20:55:10 mrr NetworkManager[799]: <debug> [1706216110.9419] ndisc[0x560e578b7210,"wlp7s0"]: solicit: schedule sending next (slow) solicitation in about 297.711 seconds
Jan 25 20:55:36 mrr NetworkManager[799]: <debug> [1706216136.6035] device[8ea30bc851a8545b] (wlp7s0): wifi-scan: scanning-state: scanning
Jan 25 20:55:40 mrr NetworkManager[799]: <debug> [1706216140.0788] connectivity: (wlp7s0,IPv4,1002) start request to 'http://ping.manjaro.org/check_network_status.txt' (try resolving 'ping.manjaro.org' using system resolver)
Jan 25 20:55:40 mrr NetworkManager[799]: <debug> [1706216140.6474] connectivity: (wlp7s0,IPv4,1002) check completed: FULL; status header found
Jan 25 20:55:41 mrr NetworkManager[799]: <debug> [1706216141.6853] device[8ea30bc851a8545b] (wlp7s0): failed to match hidden AP 86:69:1A:3E:D7:B7
Jan 25 20:55:41 mrr NetworkManager[799]: <debug> [1706216141.6858] device[8ea30bc851a8545b] (wlp7s0): failed to match hidden AP EE:9F:80:59:B3:FA
Jan 25 20:55:41 mrr NetworkManager[799]: <debug> [1706216141.6859] device[8ea30bc851a8545b] (wlp7s0): wifi-scan: scanning-state: idle (notify last-scan)

System info

System:
  Kernel: 6.7.0-0-MANJARO arch: x86_64 bits: 64 compiler: gcc v: 13.2.1
    clocksource: tsc available: hpet,acpi_pm
    parameters: BOOT_IMAGE=/boot/vmlinuz-6.7-x86_64
    root=UUID=41842a12-6b2a-4b25-b1af-237f1d287cf0 rw quiet apparmor=1
    security=apparmor udev.log_priority=3
  Console: pty pts/2 DM: SDDM Distro: Manjaro Linux base: Arch Linux
Machine:
  Type: Desktop Mobo: Micro-Star model: B550M PRO-VDH WIFI (MS-7C95) v: 1.0
    serial: <filter> UEFI: American Megatrends LLC. v: 2.A0 date: 03/16/2022
CPU:
  Info: model: AMD Ryzen 5 5600X socket: AM4 bits: 64 type: MT MCP arch: Zen 3+
    gen: 4 level: v3 note: check built: 2022 process: TSMC n6 (7nm)
    family: 0x19 (25) model-id: 0x21 (33) stepping: 0 microcode: 0xA201016
  Topology: cpus: 1x cores: 6 tpc: 2 threads: 12 smt: enabled cache:
    L1: 384 KiB desc: d-6x32 KiB; i-6x32 KiB L2: 3 MiB desc: 6x512 KiB L3: 32 MiB
    desc: 1x32 MiB
  Speed (MHz): avg: 2200 min/max: 2200/4650 boost: enabled
    base/boost: 3700/4650 scaling: driver: acpi-cpufreq governor: schedutil
    volts: 1.1 V ext-clock: 100 MHz cores: 1: 2200 2: 2200 3: 2200 4: 2200
    5: 2200 6: 2200 7: 2200 8: 2200 9: 2200 10: 2200 11: 2200 12: 2200
    bogomips: 88843
  Flags: avx avx2 ht lm nx pae sse sse2 sse3 sse4_1 sse4_2 sse4a ssse3 svm
  Vulnerabilities:
  Type: gather_data_sampling status: Not affected
  Type: itlb_multihit status: Not affected
  Type: l1tf status: Not affected
  Type: mds status: Not affected
  Type: meltdown status: Not affected
  Type: mmio_stale_data status: Not affected
  Type: retbleed status: Not affected
  Type: spec_rstack_overflow status: Vulnerable: Safe RET, no microcode
  Type: spec_store_bypass mitigation: Speculative Store Bypass disabled via
    prctl
  Type: spectre_v1 mitigation: usercopy/swapgs barriers and __user pointer
    sanitization
  Type: spectre_v2 mitigation: Retpolines, IBPB: conditional, IBRS_FW,
    STIBP: always-on, RSB filling, PBRSB-eIBRS: Not affected
  Type: srbds status: Not affected
  Type: tsx_async_abort status: Not affected
Graphics:
  Device-1: NVIDIA GP108 [GeForce GT 1030] vendor: ASUSTeK driver: nvidia
    v: 545.29.06 alternate: nouveau,nvidia_drm non-free: 545.xx+ status: current
    (as of 2023-11; EOL~2026-12-xx) arch: Pascal code: GP10x process: TSMC 16nm
    built: 2016-2021 pcie: gen: 3 speed: 8 GT/s lanes: 4 bus-ID: 2b:00.0
    chip-ID: 10de:1d01 class-ID: 0300
  Device-2: Logitech Webcam C270 driver: snd-usb-audio,uvcvideo type: USB
    rev: 2.0 speed: 480 Mb/s lanes: 1 mode: 2.0 bus-ID: 3-2.1:24
    chip-ID: 046d:0825 class-ID: 0102 serial: <filter>
  Display: server: X.org v: 1.21.1.10 compositor: kwin_x11 driver: X:
    loaded: nvidia gpu: nvidia tty: 236x54
  Monitor-1: Unknown-1 size-res: N/A in console modes: 1920x1080
  API: EGL v: 1.5 hw: drv: nvidia platforms: device: 0 drv: nvidia device: 2
    drv: swrast gbm: drv: kms_swrast surfaceless: drv: nvidia
    inactive: wayland,x11,device-1
  API: OpenGL v: 4.6.0 compat-v: 4.5 vendor: mesa v: 23.3.3-manjaro1.1
    note: console (EGL sourced) renderer: llvmpipe (LLVM 16.0.6 256 bits),
    NVIDIA GeForce GT 1030/PCIe/SSE2
  API: Vulkan v: 1.3.274 layers: 1 device: 0 type: discrete-gpu
    name: NVIDIA GeForce GT 1030 driver: nvidia v: 545.29.06 device-ID: 10de:1d01
    surfaces: N/A
Audio:
  Device-1: NVIDIA GP108 High Definition Audio vendor: ASUSTeK
    driver: snd_hda_intel v: kernel pcie: gen: 3 speed: 8 GT/s lanes: 4
    bus-ID: 2b:00.1 chip-ID: 10de:0fb8 class-ID: 0403
  Device-2: AMD Starship/Matisse HD Audio vendor: Micro-Star MSI
    driver: snd_hda_intel v: kernel pcie: gen: 4 speed: 16 GT/s lanes: 16
    bus-ID: 2d:00.4 chip-ID: 1022:1487 class-ID: 0403
  Device-3: Logitech Webcam C270 driver: snd-usb-audio,uvcvideo type: USB
    rev: 2.0 speed: 480 Mb/s lanes: 1 mode: 2.0 bus-ID: 3-2.1:24
    chip-ID: 046d:0825 class-ID: 0102 serial: <filter>
  Device-4: GN Netcom Jabra EVOLVE 30 II driver: jabra,snd-usb-audio,usbhid
    type: USB rev: 2.0 speed: 12 Mb/s lanes: 1 mode: 1.1 bus-ID: 3-2.2:25
    chip-ID: 0b0e:0314 class-ID: 0300 serial: <filter>
  Device-5: Microsoft LifeChat LX-3000 Headset
    driver: hid-generic,snd-usb-audio,usbhid type: USB rev: 1.1 speed: 12 Mb/s
    lanes: 1 mode: 1.1 bus-ID: 3-4:2 chip-ID: 045e:070f class-ID: 0300
  API: ALSA v: k6.7.0-0-MANJARO status: kernel-api with: aoss
    type: oss-emulator tools: alsactl,alsamixer,amixer
  Server-1: JACK v: 1.9.22 status: off tools: N/A
  Server-2: PipeWire v: 1.0.0 status: n/a (root, process)
    with: pipewire-media-session status: active tools: pw-cli
  Server-3: PulseAudio v: 16.1 status: active (root, process) with:
    1: pulseaudio-alsa type: plugin 2: pulseaudio-jack type: module
    tools: pacat,pactl
Network:
  Device-1: Intel Wi-Fi 6 AX200 driver: iwlwifi v: kernel pcie: gen: 2
    speed: 5 GT/s lanes: 1 bus-ID: 07:00.0 chip-ID: 8086:2723 class-ID: 0280
  IF: wlp7s0 state: up mac: <filter>
  Device-2: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet
    vendor: Micro-Star MSI driver: r8168 v: 8.052.01-NAPI modules: r8169 pcie:
    gen: 1 speed: 2.5 GT/s lanes: 1 port: f000 bus-ID: 2a:00.0
    chip-ID: 10ec:8168 class-ID: 0200
  IF: enp42s0 state: down mac: <filter>
Bluetooth:
  Device-1: Microsoft Nano Transceiver v1.0 for Bluetooth
    driver: hid-generic,usbhid type: USB rev: 2.0 speed: 12 Mb/s lanes: 1
    mode: 1.1 bus-ID: 3-2.4:27 chip-ID: 045e:0745 class-ID: 0300
  Report: This feature requires one of these tools: hciconfig/bt-adapter
Drives:
  Local Storage: total: 2.73 TiB used: 2.32 TiB (85.2%)
  ID-1: /dev/nvme0n1 maj-min: 259:0 vendor: Crucial model: CT1000P1SSD8
    size: 931.51 GiB block-size: physical: 512 B logical: 512 B speed: 31.6 Gb/s
    lanes: 4 tech: SSD serial: <filter> fw-rev: P3CR013 temp: 32.9 C
    scheme: GPT
  SMART: yes health: PASSED on: 308d 23h cycles: 2,264
    read-units: 53,965,229 [27.6 TB] written-units: 84,138,928 [43.0 TB]
  ID-2: /dev/sda maj-min: 8:0 vendor: Seagate model: ST2000DM008-2FR102
    family: BarraCuda 3.5 (SMR) size: 1.82 TiB block-size: physical: 4096 B
    logical: 512 B sata: 3.1 speed: 6.0 Gb/s tech: HDD rpm: 7200
    serial: <filter> fw-rev: 0001 temp: 31.0 C
  SMART: yes state: enabled health: PASSED on: 7235h+20m+20.878s cycles: 2263
    read: 4.69 TiB written: 6.08 TiB Pre-Fail: attribute: Spin_Retry_Count
    value: 100 worst: 100 threshold: 97
Partition:
  ID-1: / raw-size: 931.01 GiB size: 915.33 GiB (98.32%)
    used: 653.47 GiB (71.4%) fs: ext4 block-size: 4096 B dev: /dev/nvme0n1p3
    maj-min: 259:2
  ID-2: /boot/efi raw-size: 512 MiB size: 511 MiB (99.80%)
    used: 6.8 MiB (1.3%) fs: vfat block-size: 512 B dev: /dev/nvme0n1p1
    maj-min: 259:1
Swap:
  Alert: No swap data was found.
Sensors:
  System Temperatures: cpu: 40.8 C mobo: N/A
  Fan Speeds (rpm): fan-1: 1119 fan-2: 0 fan-3: 1034 fan-4: 1063 fan-5: 0
    fan-6: 0 fan-7: 0 fan-8: 0 fan-9: 0 fan-10: 0
Info:
  Processes: 383 Uptime: 2d 4h 56m wakeups: 5 Memory: total: 32 GiB
  available: 31.27 GiB used: 17.6 GiB (56.3%) Init: systemd v: 255
  default: graphical tool: systemctl Compilers: gcc: 13.2.1 clang: 16.0.6
  Packages: pm: pacman pkgs: 2014 libs: 509 tools: pamac,yay pm: appimage
  pkgs: 0 pm: flatpak pkgs: 0 Shell: Bash (su) v: 5.2.21 running-in: pty pts/2
  inxi: 3.3.31
2

Looks like you recently changed to the 6.7 kernel.

Does this happen with other kernels (6.6, 6.1) ?

3

Yeah, that was an attempt to fix it. I was on 6.5 initially, tried 6.6 and now 6.7. No result

4

Do you happen to know what was included in the update?

5

But not 6.1?
I ask because the other ones are not LTS.
6.1 is the last LTS before 6.6 … so to me it makes sense to try that.

Of course theres the general guide too
https://wiki.archlinux.org/title/Network_configuration/Wireless#iwlwifi

(you said you ‘tried options’ but we dont know what those were)

6

Not really. I didn’t even notice the exact date.

7

Actually, your comment above prompted me to look at what kernels I have installed. Turns out I have 6.1 so I switched to that. It’s been only a day but so far no issues.

To give an idea, my config looks like this:

options iwlwifi disable_11ax=true

options iwlwifi 11n_disable=8

options iwlwifi swcrypto=1
#options iwlwifi bt_coex_active=0 

# power_scheme:power management scheme: 1-active, 2-balanced, 3-low power, default: 2 (int)
options iwlmvm power_scheme=1
options iwlwifi power_save=0 amsdu_size=3

#options iwlwifi 11n_disable=1
#options iwlwifi swcrypto=0 bt_coex_active=0 power_save=0
#options iwlmvm power_scheme=1
#options iwlwifi d0i3_disable=1
#options iwlwifi uapsd_disable=1
#options iwlwifi lar_disable=1

#options iwlwifi 11n_disable=1 swcrypto=0 bt_coex_active=0 power_save=0
#options iwlmvm power_scheme=1 
#options iwlwifi d0i3_disable=1 
#options iwlwifi uapsd_disable=1 
#options iwlwifi lar_disable=1
#
#options iwlwifi 11n_disable=8 # enable antenna aggregation 
#options iwlmvm power_scheme=1 # disable power saving, default=2

#options iwlwifi swcrypto=0 
#options iwlwifi power_save=0
#options iwlmvm power_scheme=1 
#options iwlwifi uapsd_disable=1 

#options iwlwifi 11n_disable=1 swcrypto=1

I suspect some if not all of the options I have there may not be needed, but as long as it works (touch wood!) I am going to leave it.

8

That makes it hard indeed. Some library, or other software may be the ultimate culprit.

9

FWIW I tried to rollback the ucode file to the one I was using way before the issue had appeared but it didn’t help.

10

Do you use TimeShift by chance? That has been a life saver for me.

11

I think I used to when I was on Linux Mint before. Now I just back up my documents and other files, but not system stuff. Maybe I should look into that.

12

I use timeshift before every update just because of issues like this one. Sometimes I have to update one app or lib one at a time, which is a royal pain, but it does work for me. I use DejaDup for my home directory.

1 Like
13

For the record, and in case someone else has the same issue, switching to kernel 6.1 fixed it. Haven’t had any issues since.

14

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