Rustmilian

nirogu , 9 months ago to linux

Problem with WiFi driver in arch linux

Hi everyone

I've been trying to solve a problem with my arch (endeavour) instalation and wanted to know if anyone here can help

Everything is working well, excepting the WiFi connection. It is extremely slow, sometimes disconnecting from the network, and in the task bar, the WiFi icon shows that the signal strength is weak, although the router is in the same room. Switching between r8168 and r8169 as recommended doesnt work. Any ideas?

@linux

Rustmilian , 9 months ago

Can you run lspci -vnn | grep -i net and post it’s output here, thank you.

Rustmilian , 9 months ago

I did some digging.
Check if iwlwifi kernel module is loaded with
lsmod | grep iwlwifi
If not sudo modprobe iwlwifi
Then in /etc/modprobe.d/iwlwifi.conf add

<span style="color:#323232;">options iwlwifi swcrypto=1 11n_disable=1
</span>

And reboot, check if the problem is still persistent. If it is let me know, as there’s a few more things we can try like disabling power management.

Rustmilian , 9 months ago (edited 9 months ago)

I’m glad to hear that worked.
I suggest trying sudo iwconfig wlan0 power off replacing wlan0 as needed, this temporarily disables the wireless card’s power saving features.
Then check if the speed has improved, if not, skip the following.
If it has improved make the change permanent by adding the following to file /etc/pm/power.d/disable-wireless-power-management :

<span style="color:#323232;">#!/bin/bash
</span><span style="color:#323232;">/sbin/iwconfig wlan0 power off
</span>

Then run sudo chmod +x /etc/pm/power.d/disable-wireless-power-management

I assume the linux-firmware package is already installed, but double check if you’re not sure. It provides iwlwifi-8265-36.ucode in /usr/lib/firmware/ which I believe is your cards specific iwlwifi driver. Intel Wireless Firmware Page is the source that made me think to check.

If the above doesn’t work let me know as there’s a few more things we can try, but we’re reaching the end of our options.

Rustmilian , 9 months ago

Well here’s where I became less helpful. There’s 3 possible things I can think of, unfortunately as I haven’t had to do them myself I don’t know how exactly to go about doing them.
First is to optimize the MTU settings.
Second is to optimize the Regdomain.
Third is to investigate Fedora’s WiFi configuration for your card.
Sorry that I can’t help you pass here.

VENMusica , 11 months ago to linux

@linux any global mesh networks that could replace ISP's?

Rustmilian , 11 months ago

“paranoid” assumes that it’s unjustified suspicion of someone or something. However it’s a well known fact that ISPs may spy on users as it’s been exposed to happen in the past…