Wireless network not working from time to time

Hello everyone!
On almost all of the linux distros I’ve used, on this laptop, from time to time (usually after the computer wakes up from sleep, but it does happen sometimes after a fresh boot), the network manager shows as if the computer has no Wifi card or is able to use wireless connection, it’s almost like the network manager didn’t wake up or something :joy:.
So since I hopefully I’m going to stick with Manjaro KDE, I hope to find a solution to this problem.
The same thing happens with the sound, but found a fix for it on one of the fourms (pulseaudio -k && pulseaudio --start)

~ >>> inxi -Fxza:

System:
  Kernel: 5.8.18-1-MANJARO x86_64 bits: 64 compiler: gcc v: 10.2.0 
  parameters: BOOT_IMAGE=/boot/vmlinuz-5.8-x86_64 
  root=UUID=138895c2-cc5c-4591-bc68-fd58c682d6f3 rw quiet apparmor=1 
  security=apparmor resume=UUID=cbdc85f0-ae63-47be-89e8-038462fcc2f3 
  udev.log_priority=3 
  Desktop: KDE Plasma 5.20.4 tk: Qt 5.15.2 info: plank wm: kwin_x11 dm: SDDM 
  Distro: Manjaro Linux 
Machine:
  Type: Laptop System: LENOVO product: 80TU v: Lenovo ideapad 310-14IKB 
  serial: <filter> Chassis: type: 10 v: Lenovo ideapad 310-14IKB serial: <filter> 
  Mobo: LENOVO model: Torronto 4C2 v: NO DPK serial: <filter> UEFI: LENOVO 
  v: 3JCN21WW date: 09/23/2016 
Battery:
  ID-1: BAT0 charge: 28.5 Wh condition: 28.5/30.0 Wh (95%) volts: 8.5/7.4 
  model: SMP L15M2PB2 type: Li-poly serial: <filter> status: Full 
CPU:
  Info: Dual Core model: Intel Core i7-7500U bits: 64 type: MT MCP 
  arch: Amber Lake family: 6 model-id: 8E (142) stepping: 9 microcode: DE 
  L2 cache: 4096 KiB 
  flags: avx avx2 lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx bogomips: 23209 
  Speed: 500 MHz min/max: 400/3500 MHz Core speeds (MHz): 1: 500 2: 500 3: 500 
  4: 500 
  Vulnerabilities: Type: itlb_multihit status: KVM: VMX disabled 
  Type: l1tf 
  mitigation: PTE Inversion; VMX: conditional cache flushes, SMT vulnerable 
  Type: mds mitigation: Clear CPU buffers; SMT vulnerable 
  Type: meltdown mitigation: PTI 
  Type: spec_store_bypass 
  mitigation: Speculative Store Bypass disabled via prctl and seccomp 
  Type: spectre_v1 
  mitigation: usercopy/swapgs barriers and __user pointer sanitization 
  Type: spectre_v2 mitigation: Full generic retpoline, IBPB: conditional, IBRS_FW, 
  STIBP: conditional, RSB filling 
  Type: srbds mitigation: Microcode 
  Type: tsx_async_abort status: Not affected 
Graphics:
  Device-1: Intel HD Graphics 620 vendor: Lenovo driver: i915 v: kernel 
  bus ID: 00:02.0 chip ID: 8086:5916 
  Device-2: NVIDIA GM108M [GeForce 920MX] vendor: Lenovo driver: nvidia 
  v: 455.45.01 alternate: nouveau,nvidia_drm bus ID: 03:00.0 chip ID: 10de:134f 
  Device-3: Chicony EasyCamera type: USB driver: uvcvideo bus ID: 1-4:3 
  chip ID: 04f2:b57d serial: <filter> 
  Display: x11 server: X.Org 1.20.10 compositor: kwin_x11 
  driver: modesetting,nvidia unloaded: intel,nouveau alternate: fbdev,nv,vesa 
  display ID: :0 screens: 1 
  Screen-1: 0 s-res: 1366x768 s-dpi: 96 s-size: 361x203mm (14.2x8.0") 
  s-diag: 414mm (16.3") 
  Monitor-1: eDP-1 res: 1366x768 hz: 60 dpi: 112 size: 309x173mm (12.2x6.8") 
  diag: 354mm (13.9") 
  OpenGL: renderer: Mesa Intel HD Graphics 620 (KBL GT2) v: 4.6 Mesa 20.2.3 
  direct render: Yes 
Audio:
  Device-1: Intel Sunrise Point-LP HD Audio vendor: Lenovo driver: snd_hda_intel 
  v: kernel alternate: snd_soc_skl bus ID: 00:1f.3 chip ID: 8086:9d71 
  Sound Server: ALSA v: k5.8.18-1-MANJARO 
Network:
  Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet vendor: Lenovo 
  driver: r8169 v: kernel port: 4000 bus ID: 01:00.0 chip ID: 10ec:8168 
  IF: enp1s0 state: up speed: 1000 Mbps duplex: full mac: <filter> 
  Device-2: Qualcomm Atheros QCA9377 802.11ac Wireless Network Adapter 
  vendor: Lenovo driver: ath10k_pci v: kernel port: 4000 bus ID: 02:00.0 
  chip ID: 168c:0042 
  Device-3: Qualcomm Atheros type: USB driver: btusb bus ID: 1-7:5 
  chip ID: 0cf3:e500 
Drives:
  Local Storage: total: 372.62 GiB used: 216.07 GiB (58.0%) 
  SMART Message: Unable to run smartctl. Root privileges required. 
  ID-1: /dev/sda vendor: Kingston model: SA400S37240G size: 223.57 GiB block size: 
  physical: 512 B logical: 512 B speed: 6.0 Gb/s serial: <filter> rev: 0102 
  scheme: GPT 
  ID-2: /dev/sdb vendor: Seagate model: ST9160412AS size: 149.05 GiB block size: 
  physical: 512 B logical: 512 B speed: 3.0 Gb/s rotation: 7200 rpm 
  serial: <filter> rev: HPM1 scheme: MBR 
Partition:
  ID-1: / raw size: 214.47 GiB size: 210.11 GiB (97.96%) used: 158.97 GiB (75.7%) 
  fs: ext4 dev: /dev/sda2 
Swap:
  Kernel: swappiness: 60 (default) cache pressure: 100 (default) 
  ID-1: swap-1 type: partition size: 8.80 GiB used: 0 KiB (0.0%) priority: -2 
  dev: /dev/sda3 
Sensors:
  System Temperatures: cpu: 32.0 C mobo: N/A 
  Fan Speeds (RPM): N/A 
Info:
  Processes: 223 Uptime: 22m Memory: 7.68 GiB used: 2.65 GiB (34.6%) Init: systemd 
  v: 246 Compilers: gcc: 10.2.0 Packages: 1565 apt: 2 pacman: 1551 lib: 428 
  flatpak: 0 snap: 12 Shell: Zsh v: 5.8 default: Bash v: 5.0.18 
  running in: konsole

~ >>> mhwd:

> 0000:03:00.0 (0302:10de:134f) Display controller nVidia Corporation:
--------------------------------------------------------------------------------
                  NAME               VERSION          FREEDRIVER           TYPE
--------------------------------------------------------------------------------
video-hybrid-intel-nvidia-455xx-prime            2020.10.04               false            PCI
video-hybrid-intel-nvidia-450xx-prime            2020.10.04               false            PCI
video-hybrid-intel-nvidia-440xx-prime            2020.10.04               false            PCI
video-hybrid-intel-nvidia-435xx-prime            2020.10.04               false            PCI
video-hybrid-intel-nvidia-430xx-bumblebee            2020.10.04               false            PCI
video-hybrid-intel-nvidia-418xx-bumblebee            2020.10.04               false            PCI
video-hybrid-intel-nvidia-390xx-bumblebee            2020.10.04               false            PCI
    video-nvidia-455xx            2020.10.04               false            PCI
    video-nvidia-450xx            2020.10.04               false            PCI
    video-nvidia-440xx            2020.10.04               false            PCI
    video-nvidia-435xx            2020.10.04               false            PCI
    video-nvidia-430xx            2020.10.04               false            PCI
    video-nvidia-418xx            2020.10.04               false            PCI
    video-nvidia-390xx            2020.10.04               false            PCI
           video-linux            2018.05.04                true            PCI


> 0000:01:00.0 (0200:10ec:8168) Network controller Realtek Semiconductor Co., Ltd.:
--------------------------------------------------------------------------------
                  NAME               VERSION          FREEDRIVER           TYPE
--------------------------------------------------------------------------------
         network-r8168            2016.04.20                true            PCI


> 0000:00:02.0 (0300:8086:5916) Display controller Intel Corporation:
--------------------------------------------------------------------------------
                  NAME               VERSION          FREEDRIVER           TYPE
--------------------------------------------------------------------------------
video-hybrid-intel-nvidia-455xx-prime            2020.10.04               false            PCI
video-hybrid-intel-nvidia-450xx-prime            2020.10.04               false            PCI
video-hybrid-intel-nvidia-440xx-prime            2020.10.04               false            PCI
video-hybrid-intel-nvidia-435xx-prime            2020.10.04               false            PCI
video-hybrid-intel-nvidia-430xx-bumblebee            2020.10.04               false            PCI
video-hybrid-intel-nvidia-418xx-bumblebee            2020.10.04               false            PCI
video-hybrid-intel-nvidia-390xx-bumblebee            2020.10.04               false            PCI
           video-linux            2018.05.04                true            PCI
     video-modesetting            2020.01.13                true            PCI
            video-vesa            2017.03.12                true            PCI

Also, this problem is happening as I type, I’m using Ethernet.
Is there a fix (apart from rebooting, which works)?
Thanks :grin:

Whats the value of S/N ratio ? (of your WIFI)

Thanks @Keruskerfuerst for replying, but I don’t understand exactly what you mean :sweat_smile:

That’s a technical term for “Signal strength” :slight_smile:
(Signal/Noise)

Cross-link: Wifi not working - Qualcomm Atheros QCA6174

S/N ratio is signal to noise ratio and not the signal strength.

For non radio-techs it is similar, ofcourse in technicality they are different but try to explain that to a non-radio technological person in one sentence :wink:
Maybe i should have said “Signal quality” to be more correct for both audience :face_with_hand_over_mouth:

But lets not derail the topic further i think the poster understands it now (i hope)

Signal to Noise ratio is the difference between Signal (which transports the data) and the noise
(which is the distortion).

image

If this is not what you are looking for, then can you give some instructions on how to find the Signal to Noise ratio, thanks.

Maybe S/N ratio can be found in the interface of your router.
Often only signal strength is displayed and this is not S/N ratio.

Ok, but I’ve had this problem with multiple routers, in multiple countries.
So what use would that be?
Also, I don’t have access to my router right now.