Wifi interface completely gone after catalina update on 2015 MBP

Unfortunately, it doesn't work since apple has "Sealed off" the "/Systems" folder and everything under it. Therefore the command "sudo mount -uw /" fails with a permissions error. I've just painfully found out. Aside from the Wifi issue Big Sur works great on my late 2013 macbook pro.

This is really fraustrating because on the one hand Apple claim to support my model for Big Sur and yet they can't be bothered to address usage problems arising from the decisions that they make.

What good is a laptop without wifi access? Sorry for the rant but I've really regretted buying a new Macbook Pro early this year.

Same problem here with a MBP 2014, even with a clean install. It seems the driver is broken or missing.

The fix basically adds the missing drivers from Mojave to Catalina, as far as I understand it. It seems that you have a different issue – does your WiFi work with High Sierra?

For anybody still looking, the link no longer works. The fix is here now: https://github.com/alessandro893/MacOS-WLAN-Driver

no proper solution. latest updates from Apple failed to fix the issue. But, the remedy listed here several times has worked for me. I applied it on 15.1, and then 15.2. At this point however, I doubt I shall ever patch my 2013 again; just too risky.

I’m having the same issues as OP after updating my 2016 MBP to Catalina. WiFi connects and disconnects every 30 seconds and something is wrong with the WiFi software saying null for everything. It’s definitely an update problem that should be looked into. Hacking into WiFi files and installing some unknown source files to get this to work is not an acceptable solution. Reformatting and reinstalling everything is also sledgehammer approach. If I could sudo apt-get something to fix this, I’ll be happy.

Follow this exactly and it works.

Well done.

I think it’s pretty poor that we have to resort to things like this. I updated to Catalina and the wifi completely disappeared from my system. No icon, nothing. It’s like there wasn’t even any hardware installed.

The answer was of course drivers and the solution above works.

Thanks again.

Hello Jog, I have a 15 inch MacBook Pro, mid 2012. When I upgraded to Catalina 10.15.3 I lost the wifi, went back to Mojave and continued without the wifi and went back to Catalina again.

Today I did the Wifi_kexts procedure and it didn't work, I repeated the procedure and it didn't work, so I upgraded to Combo update 10.15.3, continued without wifi, redid the procedure and it didn't work. I went back to Mojave and did the procedure and still have no wifi. Help please.

Hello, I'm having this issue, I was trying to download the wifi drivers but I got an error that the site can't be reached.

Is there any way I can get the working link or any other way to fix this issue?

Late 2013 MBP with a broken wireless card. Was using a usb dongle to connect to wifi.

Installed BIG SUR but could not use wifi dongle so reinstalled Catalina. 10.15.7.

As the wifi card is broken I only had the option of installing Catalina without wifi.

Machine does not recognise wifi at all and offers no option to add a wifi profile in network preferences.

I have tried the workaround :

https://apple.stackexchange.com/questions/372025/missing-wifi-interface-after-upgrade-to-catalina?newreg=1904677ef3d840f0a87b73a2cd7bd342

But it has not worked for me.

I can of course use a very loooonng wire, but would prefer to get my wireless back.

Any help appreciated. Apple help could only offer me an in store, out of warranty solution

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Facing this same exact issue after updating my late 2013 MBP from mojave to catalina

Me too, the same error on my Mid 2014 MBP. I google how to fix it but it seem no way to do it. Apple doesn't have any reply to us. :(

I did it a thousand times :D

I'm using ThunderBolt -> Ethernet at the moment :(. I hope Apple will apply new fix for this error soon.