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!

View in context

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.

Dec 11, 2018 12:16 PM in response to Ibadan

Hooray!!! It worked for me. No problem. Still have Mojave (10.14) installed.

Lymbo

Level 1

4 points

Dec 20, 2018 9:08 PM in response to AFlyingGoose

What is TL;DL? native drive?

imjafj

Level 1

12 points

Dec 24, 2018 11:22 AM in response to Ibadan

search didn’t find it but going directly to the folder I was able to delete it.

like magic my Mac mini works again

jeff

Lymbo

Level 1

4 points

Dec 24, 2018 11:43 AM in response to imjafj

Jeff,

Which folder?

Uurfi

Level 1

8 points

Dec 24, 2018 11:44 AM in response to imjafj

Hi Jeff.

Can you please post the link or directory path to go to file directly

thanks

Dec 24, 2018 6:26 PM in response to imjafj

I have this issue but cannot find any file like that under ETC. running 10.14.2. Can anyone help guide me through this pain??

Dec 24, 2018 7:21 PM in response to imjafj

What if I downgrade to high Sierra would that fix anything?

Uurfi

Level 1

8 points

Dec 26, 2018 10:50 AM in response to imjafj

Thanks again for the prompt reply. I found the folder etc but didn’t find sysctl.conf. File instead I found sysctl.log only.

Dec 29, 2018 8:39 AM in response to Ibadan

Success! Thank you for the detailed step by step. Renamed the file from the terminal app, entered password, reboot, voila!

Dec 29, 2018 9:27 AM in response to Josh Hill

Worked like a charm ! Thx u

r_bsky

Level 1

4 points

Dec 30, 2018 8:24 AM in response to Uurfi

Same problems as you, can’t find the file in my ETC folder

r_bsky

Level 1

4 points

Dec 30, 2018 8:31 AM in response to Craigstar23

I thought i need a internet Connection ti reinstall Mojave ?

r_bsky

Level 1

4 points

Dec 30, 2018 8:34 AM in response to Craigstar23

Similar to uurfi, the provlem

ocurred after using a Ethernet port to connect MacBook to the internet, now both ways don’t seem to work at all

This thread has been closed by the system or the community team. You may vote for any posts you find helpful, or search the Community for additional answers.

WiFi: No Hardware Installed after Mojave upgrade