Artix Linux Forum

Might have to do with your country's wireless regulations. If that's the case, it can be fixed by installing the crda package and telling your network manager what country you're in so it configures the wireless device appropriately.

For instance, country=uk on the top of wpa_supplicant.conf if you use it as your only network manager.

You may need broadcom wl driver. Install broadcom-wl-dkms from AUR.

Network:   Device-1: Broadcom BCM4313 802.11bgn Wireless Network Adapter
           driver: bcma-pci-bridge
           Device-2: Qualcomm Atheros AR8162 Fast Ethernet driver: alx

Thanks @calvinh
Isn't it already installed (I assume). It is already working but very slow?
How can I know if it is installed already or not?

This is my device:

They're different drivers. Read https://wiki.archlinux.org/title/Broadcom_wireless#broadcom-wl for more info.

If you use broadcom-wl or another kernel release dependant variant (e.g. broadcom-wl-ckAUR), it may happen that kernel upgrades break wireless from time to time until the packages are in sync again.

will need the linux-headers package for the installed kernel(s) in order to build the module. Those packages are optional to the DKMS package and will need to be installed manually.

sudo pacman -S  linux-headers
[sudo] password for limo:
warning: linux-headers-5.14.10.artix1-1 is up to date -- reinstalling
resolving dependencies...
looking for conflicting packages...

Packages (1) linux-headers-5.14.10.artix1-1

Country regulations? I don't get this point.

Quote

If you use broadcom-wl or another kernel release dependant variant (e.g. broadcom-wl-ckAUR), it may happen that kernel upgrades break wireless from time to time until the packages are in sync again.

which I'd like to avoid for sure.

It's explained in more detail on the Arch Wiki:

https://wiki.archlinux.org/title/Network_configuration/Wireless#Respecting_the_regulatory_domain

Basically how each country partititions RF spaces varies a little and by default it goes through a lowest-common-denominator setting which might not be the best. Though, I think @calvinh's explanation is more likely.
which I'd like to avoid for sure.


What this means is that you must use the package from the official repository called linux, and boot with it, for the package called broadcom-wl to work. If you experiment with your kernel (changing to Linux-LTS or Linux-ZEN, compiling it yourself, etc.), it won't work.

However, there's broadcom-wl-dkms if you want -- the driver will be automatically built locally after every kernel update, which is a bit time-consuming, but now it'll work with any kernel.

sudo pacman -S broadcom-wl

> But I am on LTS now.

Install linux-lts-headers.

sudo pacman -S broadcom-wl

OK... installing!
UPDATE:
Done and rebooted.

Should I nowand reboot?
I just want to be sure I won't break things and make it harder to fix.

If you installed broadcom-wl-dkms, there's no need to, it can also compile the package for the plain linux kernel.

I had problems with both Intel 533AN _HW 5300 (slow on some routers) and Broadcom BCM943224HMS wifi (didn't work at all with std kernel driver except to make a local connection to the router and crashed the OS sometimes trying to connect online, didn't try any other drivers), I'm using a Belkin / Ralink PCMCIA card and an Atheros AR5B97 half mini PCI internal card (which was incredibly cheap for a used one) which are both working very well. So that's one "solution" to swap in some other suitable card, although perhaps not the smartest in software terms!