WIFI is dropping then coming back

General system Kernel, boot, graphics & hardware
1

So on my laptop - Dell Rugged Latitude 5420 my wifi will drop, then maybe after 10 seconds or so, come back. During that time, it still shows connected in the system tray and if I hover over it, it seems to come back quicker. That’s probably just a placebo effect though. Every now and then it will say limited connectivity and take 30 seconds or so to come back. In a typical 2-3 hour session while browsing the web about 20 - 25ft from my router this will occur about a dozen times or so. It is incredibly frustrating. I am not sure what is causing it.

I would love some help in troubleshooting and solving this issue. I am happy to post logs or system specs.

inxi - F output

System:
  Host: voidbrick Kernel: 6.10.10-arch1-1 arch: x86_64 bits: 64
  Desktop: KDE Plasma v: 6.1.5 Distro: EndeavourOS
Machine:
  Type: Laptop System: Dell product: Latitude 5420 Rugged v: N/A
    serial: <superuser required>
  Mobo: Dell model: 0Y7FK3 v: A03 serial: <superuser required> UEFI: Dell
    v: 1.33.0 date: 05/31/2024
Battery:
  ID-1: BAT0 charge: 38.7 Wh (100.0%) condition: 38.7/51.0 Wh (76.0%)
CPU:
  Info: quad core model: Intel Core i5-8350U bits: 64 type: MT MCP cache:
    L2: 1024 KiB
  Speed (MHz): avg: 800 min/max: 400/3600 cores: 1: 800 2: 800 3: 800 4: 800
    5: 800 6: 800 7: 800 8: 800
Graphics:
  Device-1: Intel UHD Graphics 620 driver: i915 v: kernel
  Device-2: Realtek Integrated_Webcam_HD driver: uvcvideo type: USB
  Display: wayland server: X.org v: 1.21.1.13 with: Xwayland v: 24.1.2
    compositor: kwin_wayland driver: X: loaded: modesetting dri: iris gpu: i915
    resolution: 1920x1080
  API: EGL v: 1.5 drivers: iris,swrast
    platforms: gbm,wayland,x11,surfaceless,device
  API: OpenGL v: 4.6 compat-v: 4.5 vendor: intel mesa v: 24.2.3-arch1.1
    renderer: Mesa Intel UHD Graphics 620 (KBL GT2)
  API: Vulkan Message: No Vulkan data available.
Audio:
  Device-1: Intel Sunrise Point-LP HD Audio driver: snd_hda_intel
  API: ALSA v: k6.10.10-arch1-1 status: kernel-api
  Server-1: PipeWire v: 1.2.4 status: active
Network:
  Device-1: Intel Ethernet I219-LM driver: e1000e
  IF: enp0s31f6 state: down mac: 8c:0f:6f:65:4c:44
  Device-2: Intel Wireless 8265 / 8275 driver: iwlwifi
  IF: wlan0 state: up mac: f4:46:37:54:c8:97
Bluetooth:
  Device-1: Intel Bluetooth wireless interface driver: btusb type: USB
  Report: btmgmt ID: hci0 rfk-id: 6 state: down bt-service: disabled
    rfk-block: hardware: no software: no address: N/A
Drives:
  Local Storage: total: 476.94 GiB used: 77.91 GiB (16.3%)
  ID-1: /dev/nvme0n1 vendor: Micron model: 2300 NVMe 512GB size: 476.94 GiB
Partition:
  ID-1: / size: 450.61 GiB used: 77.73 GiB (17.2%) fs: ext4
    dev: /dev/nvme0n1p2
Swap:
  ID-1: swap-1 type: partition size: 17.05 GiB used: 0 KiB (0.0%)
    dev: /dev/nvme0n1p3
Sensors:
  System Temperatures: cpu: 46.0 C pch: 39.0 C mobo: N/A
  Fan Speeds (rpm): N/A
Info:
  Memory: total: 16 GiB available: 15.5 GiB used: 4.86 GiB (31.4%)
  Processes: 251 Uptime: 1d 40m Shell: Bash inxi: 3.3.36
2

You could try wifi.scan-rand-mac-address=no to /etc/NetworkManager/NetworkManager.conf

3

I tried that and it totally killed my WIFI.

KDE also wasn’t seeing it and the network manager dude in my systray didn’t load.

4

You could try the following then.

/etc/modprobe.d/iwlwifi.conf

options iwlwifi 11n_disable=1 swcrypto=1

5

Sorry for the delay in getting back to you on this.

I’ve been busy and haven’t been on my laptop for the past 3 days as I was spending time with my family.

I implemented that change tonight.

WIFI is working now.

I am curious to see if the issue persists.

6

Me too!

Edit: It may be okay now but time will tell.

7

So it’s been a few days and the problem hasn’t come back.

I think we can consider this one solved.

Thanks! :slight_smile:

8

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