WiFi: No Hardware Installed after Mojave upgrade

/Volumes/Macintosh HD/ETC

That's what got me there.

found the sysctl.conf in there

deleted it

restarted no problems

Jeff

Simply a clean uninstall & reboot

Same problem here with my early 2015 MBP. It slowed down to the speed of a 486 DX2 80mhz with Turbo off, WiFi says No Hardware Installed and wired connection wont work.

Also tried NVRAM, SMC reset and also doing a reinstall from the recovery console (not a clean reinstall, need my files). No luck.

Also tried the USB Ethernet dongle and that’s not working either.

I am so ******!

I have an iMac Retina 5K, 27inch 2017 with 4.2GHz i7 40GB of memory.

I installed the first beta of Mojave and had this problem. Computer turned slow as molasses and I was getting the WI-FI: No hardware installed error. I tried everything to no avail and after several days, I recovered from a Time Machine backup and didn’t try again...till yesterday.

I installed the final version of Mojave, and here I am again. Same **** error. Can’t use my computer. I don’t have the time or patience to mess around for another several days so, unless I hear about some miracle fix soon, I’m downgrading again.

I’d like to use Mojave but come on! I know the hardware is installed, it will start working as soon as I downgrade.

Any thoughts?

Same with my mother's computer, and it's driving us up the wall. Me because I'm hundreds of miles away trying to talk her through zapping the PRAM and all that jazz.

She's got it wired into the home network and the network panel in System Preferences shows "green" (connected) with a valid IP address, but Safari says there's no internet connection. The airport menu has an X through the icon and says there's no WiFi hardware installed when you pull it down.

I'd have her take it into a store, but the nearest Apple Store is 90 minutes away in another city and she doesn't drive. I'm going to have her call Apple today to open a ticket but it sounds like they won't be able to do anything for her.

I see that many are having the issue, which means Apple will have to address it but I have a concern: If Apple releases 10.14.1 with a fix... HOW DO WE INSTALL IT WITH NO ABILITY TO CONNECT TO THE INTERNET? Any ideas about that?

I was just wondering that. Also wondering if Mojave is worth packing my computer up to take to the Apple store when I can just downgrade to High Sierra.

FYI, I just booted into Safe Mode in Mojave and still no WI-FI hardware. Might that mean extensions are not my problem?

Have Parallels installed but none of the other software. I discussed Parallels with the Sr AppleCare tech and he stated that Parallels wouldn’t cause this problem. I have not done a clean install (erase and restore) so I’m interested to know if this will resolve the issue. If you bring it in I’m sure that is what the Apple tech will do. So make sure you have a backup. Please keep us posted.

Keep us in the loop!

Rebooting in safe mode did not fix my problem.

I will tell you though, I was able to downgrade from a beta to High Sierra from a TimeMachine backup without wiping my drive...or perhaps it wiped it they restored what I had 🤔

Also starting to seriously consider a clean install. I need to do some research to learn what that actually means and what I will lose in the process.

My MBP is the same as yours and I am experiencing the same. I have done the tings you listed off, as well as reinstalled Mojave through Recovery (wifi works for that part, just not in Mojave) with no luck.

Additionally, Mine isn't recognizing USB flash drives (to backup files) or the Thunderbolt Ethernet adapter either.

I’m in the same boat as the rest of you. Mac user since the days of 9” B&W screens, tried every, calling Apple support once I get a cup of coffee. I’ll let you know what the story from Apple is later today.

Spent half an hour on the phone with Apple Support yesterday. Have a Genius Bar visit with a Senior Tech calling in scheduled for this afternoon.

Found out this is a known, documented (inside Apple) issue.

Will post an update after my Genius Bar visit.

Thank you, I will stay tuned. I am not excited enough about Mojave to haul my iMac into the Apple store. Fortunately for now I have a work Dell I can use till this is resolved. If the resolution isn’t an easy fix, then I will just restore High Sierra till perhaps an update is released.

Please let us know what the Fox is...if there is one😉

Thanks for the follow up! Unfortunately, I don’t have a fussion drive and even if I did, I wouldn’t know what to do with it. I have a solid state internal drive. Perhaps the external drives are messing with Mojave. Not sure why that would shut the WI-FI down but who knows. Going to go home, try booting up and “doing things” without the externals plugged in. If that fails, going back to HS, and will just monitor this thread for updates.

Postscript:

My suspicions are that Mojave‘s installation in rare cases is problematic (no kidding). I think it’s due to APFS being implemented as part of the Mojave install and that in my case the switch to APFS was not flawless.

Well, folks, I feel a bit bad for throwing in the towel, but, I just downgraded to High Sierra. I can't find a solution short of carting my computer to the Apple store, just so I can get dark mode. I will keep monitoring this thread and if someone comes up with a definitive solution, I might try again...or wait till the .1 version of Mojave.

Thanks for all your attempts to help.