Hi @infocert and welcome to the Manjaro community
A little more searching would have revealed this likely solution in the Broadcom Wi Fi not working with Manjaro thread.
From the Arch Broadcom Wiki:
“BCM4331 noticed to have problems with b43-firmware-classic.
Use b43-firmware for this card instead, or switch to
broadcom-wl mentioned below for a more stable experience.”
It is suggested to install current kernel-headers (an optional dependency for dkms). These are likely needed when using broadcom-wl-dkms:
sudo pacman -S linux66-headers
I suppose that would depend on your definition of convoluted.
Most regular maintenance on Linux; and Arch-based distributions, in particular, require effort and learning. If you’re asking for a guaranteed step-by-step walkthrough to magically solve your issues, well, that’s unlikely.
However, if you have a smartphone and know how to setup USB tethering, that’s certainly an option. Once that is in place, you can proceed to update the system and install packages as normal; only, using your phone as the Internet connection. Naturally, expect that to be slower than usual.
That is an often suggested workaround until you can get your main Internet connectivity working. Another often suggested method is to run a network cable directly to your modem/router, if you have one available; or to that of a friend, if that’s an option.
In the meantime, and as a new user, these links will help you use the forum more effectively.
- [Howto] Request Support
- [Howto] Find System Information
- [Howto] Post Command Output and File Content as Formatted Text
I hope this helps. Cheers.