Can't add Wi-Fi driver on Mojave?

[sweetnamese]

Hi there,

Not completely sure how this happened, but my Wi-fi was deleted off the Network's settings list. I've tried adding it back by click on the '+' sign and selecting Wifi. For some reason, it doesn't auto list itself as an additional connection. I tested it on other "Interface" like Thunderbolt or Bluetooth and it works fine (it's added to the Network list).

The status bar icon for Wi-Fi has a '!' on it with a drop-down that doesn't show all surrounding wifi networks.

Would anyone happen to have an answer and fix to this issue? It's strange and has never happened before.

I'm using a Macbook Pro 2012 with upgraded OS (Mojave), 16GB RAM and 1TB SSD.

 

[sweetnamese]

Basically, it's this same issue found here:
https://forums.macrumors.com/threads/problem-with-wi-fi.1827118/

No solution has been found yet.

 

[Mr_Brightside_@]

I notice your Location is April 2019. Can you try changing it back to Automatic?

 

[sweetnamese]

I notice your Location is April 2019. Can you try changing it back to Automatic?

Hi,

I've had it on Automatic as well and it didn't work. I created the April 2019 location to test the default networks list.

I've also removed Wifi from Thunderbolt bridge network to create a separate one on it's own and see if it would work, it did not. I feel like I'm close, but missing something.

 

[sweetnamese]

Hi all,

I've found a fix!

http://www.iphonehacks.com/2014/11/wi-fi-problems-mac-os-x-yosemite.html

Mac OS Mojave doesn't' allow the SystemConfiguration folder itself to be deleted, but the files inside it can with authorization password. Delete it after making a backup, do not clear trash. Restart the computer, then WAHH-LAAA, the wifi interface is restored!!