Would love to install Zorin, but after MANY tries ... no luck. Bottom line > all the answers suggest in linking to the internet with Ethernet cable to download and install, BUT, I'm in an apartment 3 floors away from the router! How can I download on another computer and install? I need to know where to manually install the file(s) in Zorin.
Since you may need different Broadcom drivers
Newer Broadcom proprietary:
sudo apt install bcmwl-kernel-source
Older:
sudo apt install firmware-b43-installer b43-fwcutter
Manual install is tricky, which is why the above is the preferred method.
Since you cannot use ethernet to the router - Can you instead tether your Phone as Hotspot?
Maybe take them manually from the Sources with a different PC and put them on an USB Stick?
@happy00frog: On this Link, You can find broadcom-sta-dkms and bcmwl-kernel-source
firmware-b43-installer:
b43-fwcutter: