Wifi interface completely gone after catalina update on 2015 MBP

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Wifi interface completely gone after catalina update on 2015 MBP

After upgrading my early 2015 MBP from mojave to catalina, the wifi interface disappeared from the system.

I don't see it anymore in the list and can't add it. Even in recovery mode, network utility doesn't show it in the drop down.

System information says

  Software Versions:
  CoreWLAN: 13.0 (null)
  CoreWLANKit:  13.0 (null)
  Menu Extra:   13.0 (null)
  System Information:   12.0 (null
  IO80211 Family:   12.0 (null)
  Diagnostics:  1.0 (null)
  AirPort Utility:

This person on stackexchange has the same problem https://apple.stackexchange.com/questions/372025/missing-wifi-interface-after-upgrade-to-catalina?newreg=1904677ef3d840f0a87b73a2cd7bd342

Is this a known problem that's going to be fixed? I don't want to downgrade to mojave, restore backups and everything and then reupgrade again...

MacBook Pro Retina

Posted on Oct 9, 2019 11:15 AM

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Answer 1

Jun 19, 2020 1:40 PM in response to jog@mac.com

19June2020 and this worked on a iMac (Retina 4K, 21.5-inch, Late 2015)

I actually replaced the original wifi card with another one because my bluetooth was not working, and then I had an issue with the wifi disappearing upon the new software, but bluetooth worked fine.

(Minor, possibly major, detail: also had upgraded my HD and freshly installed the latest MacOS).

Thank you so much, you are a saint for posting this jog@mac.com

- I followed verbatim and boom, WiFi back up in business like new :)

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