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Josh Hill Author

Level 1

71 points

WiFi: No Hardware Installed after Mojave upgrade

I installed Mojave on my MBP (early 2015, 2.9GHz, 16MB ram) the other night and now have issues... in addition to God awfully slow performance, my WiFi no longer works... I have a “WiFi: No Hardware Installed” message where the signal indicator should be... all worked fine before the install.

I have run the AHT and no problems were found... I have tried booting in safe mode, I have reset the NVRAM, I have SMC, I have deleted the NetworkInterfaces.plist and rebooted... none have corrected the WiFi problem (or the slow performance)...

Anyone have other ideas?

Posted on Sep 28, 2018 5:55 AM

Top-ranking reply

AFlyingGoose

Level 1

19 points

Posted on Oct 8, 2018 11:27 AM

Finally found a solution, thanks to this post: Re: Mojave login UI sluggish & laggy

If you're booting from a usb drive, make sure to edit the file on the right volume. My MBP is now back to being healthy and working perfectly on Mojave... with WiFi!

TL;DR - on the native drive (/Volumes/Macintosh HD), got to /etc/ and rename the sysctl.conf file, reboot and voila!

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152 replies

Fwgj

Level 1

4 points

Nov 21, 2018 10:24 PM in response to Josh Hill

Sweet Jesus, it worked! Was 2 mouse clicks away from buying a new SSD and starting from scratch. Thanks folks!

Nov 23, 2018 6:49 AM in response to JoeMan71

Thank you so much!!!! This did the trick. Was afraid I was going to have to go to the Apple store on Black Friday to get my MacBook Pro operational again.