This is a follow-up question to Mac Pro 4,1 (Early 2009) Sierra Compatibility?
I installed macOS Sierra on an early 2009 Mac Pro and now I noticed that my wifi hardware "is not detected". Here's what I did:
I used the MacPro Firmware updater to change it's version from 4,1...5,1.
I installed a 480GB Mercury Electra 3G SSD which I bought from OWC in the next available slot.
I installed Sierra Public beta. It's been updated twice, and now it's at 10.12 Beta (16A313a)
I now noticed that the wifi icon in the toolbar has a big X on it, and it says that no wifi
Is it possible that there's a new incompatibility with the wifi card with Sierra, or that somehow adding the new SSD caused a problem?
Does anyone have experience with this and/or have any hints?