Wi-Fi on Macbook Air 6.2 working well with Zorin 17 but not 17.1

[swarfendor437]

What about this?:

Macbook unable to connect to net Broadcom 4328

Open a terminal and copy and paste each command from this askubuntu thread - the post with 4 votes under the heading '2 answers' - the poster is also a macbook user: