[Solved] BCM4331 - Inconsistent and slow Wifi on mac

[rewforaro]

I have just installed Manjaro on my mid-2012 Macbook Pro and the Wifi is significantly slower on Manjaro than on MacOS. It is also somewhat inconsistent. Sometimes a page loads as fast as I expect and other times it takes a very long time to load. What should I do to fix this?

Kernel: 4.19.59-1-MANJARO x86_64 bits: 64 compiler: gcc
v: 9.1.0 Desktop: Gnome 3.32.2 wm: gnome-shell dm: GDM 3.32.0
Distro: Manjaro Linux
Network:
Device-1: Broadcom and subsidiaries NetXtreme BCM57765 Gigabit Ethernet
PCIe driver: tg3 v: 3.137
Device-2: Broadcom and subsidiaries BCM4331 802.11a/b/g/n
vendor: Apple AirPort Extreme driver: bcma-pci-bridge

[bogdancovaciu]

See here

Broadcom wifi driver fails to install properly

If your Broadcom wireless adapter driver is detected as "bcma-pci-bridge" or "b43-pci-bridge", your driver has likely been installed incorrectly. Examples: Kernel driver in use: bcma-pci-bridge Kernel modules: bcma Kernel driver in use: b43-pci-bridge Kernel modules: ssb If your WiFi connection is not working correctly you will need an alternate means to connect to the internet. You can use a wired LAN connection if your computer has a wired NIC (and a connection is available). The other…

because is mentioned here, where the OP has same Macbook model.

[SOLVED] Poor wifi speeds

Hello! I have searched and am not finding an issue quite like the one I am experiencing. Wifi speeds are slow, ethernet is snappy and quick. I am running a mid 2012 Macbook Pro. macos, windows, and KDE Neon do not have the wifi problems. I assumed this was due to the broadcom wifi drivers which have proven to be a headache in the past, but I have a USB wifi adapter (Alfa AWUS036NEH) which has worked perfectly - plug & play - with every distro I've tried. However, I get the slow wifi speeds on t…

[rewforaro]

Thank you for the link!

I tried sudo pacman -Rns linux419-broadcom-wl since my kernel seems to be 419 as well, but it say

error: target not found: linux419-broadcom-wl

None of the three driver versions you listed as examples seems to be the right one.

How do I check the driver version?

[bogdancovaciu]

@rewforaro

sudo pacman -Rns linux419-broadcom-wl

that is a command to remove the driver IF you had it installed. If is not installed then of course the target is not found on your system.
Continue with the how to ...

[rewforaro]

Okay, it seems to be working now. Thanks!!