Level 6

17,588 points

10.13 High Sierra Wi-fi issue

Update process from 10.12 to 10.13 on mid-2011 iMac was uneventful. However, an issue is that after a shutdown/restart or waking from sleep, wi-fi won't automatically connect. Turning wifi off/on doesn't change anything. Wireless network SSIDs are hidden, so they don't usually (sometimes do) show up in the network list. After clicking "turn wifi on", when they show up in the network list, choosing one will make the connection. Steps I've taken:

Reboot wireless router
Remove existing wifi configuration files from /library/preferences/systemconfiguration, followed by reboot
Create new profile, reboot, still no automatic connection
Added a couple of DNS servers (8.8.8.8 and .4 for now). This didn't change anything
For the first time in forever, did an SMC reset, which didn't change anything

There were no wifi issues with Sierra 10.12, so this is new.

Open to any ideas. TIA!

null-OTHER, macOS High Sierra (10.13), null

Posted on Sep 25, 2017 3:35 PM

Top-ranking reply

KikeVera

Level 1

4 points

Posted on Nov 28, 2017 9:43 AM

I had the same issue you guys have and after serious hours of troubleshooting I figured that my AT&T router has a feature called Band staring. For the feature to work you have to setup both band SSIDs 2.4Ghz and 5.0Ghz) with the same name, So the computer will decide to connect to the band that offers a better signal levels. Apparently High Sierra does not handle this very well and gets confuse. As a temporary fix, I have set diferent names for the SSIDs and now I can connect to either band with no issues. It will connect at wake ups or reboots. Apple still need to come out with a solution for this.

Hopefully this would work for you guys.

MBP 13’ mid 2012.

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139 replies

Oct 12, 2017 1:31 AM in response to BGreg

didn't work for me

Dogcow-Moof

Level 8

37,151 points

Oct 12, 2017 2:53 AM in response to BGreg

No idea except perhaps an incompatibility with your router.

My router is an 802.11ac Time Capsule with a hidden SSID, and my devices automatically connect as they always have.

overcatz

Level 1

4 points

Oct 12, 2017 11:25 AM in response to BGreg

Hi BGreg,

Any luck in resolving this. I'm having the same issue as well.

thanks!

Yepa

Level 1

8 points

Oct 16, 2017 2:18 PM in response to Yepa

FOrgot to add - my WIfi was open and hidden originally.

WU-SLS

Level 1

4 points

Oct 19, 2017 2:33 PM in response to BGreg

The option to just unhide your SSID is not acceptable when you have an enterprise organization that requires it and has it hidden globally. Thanks. Glad I am testing before rollout.

tygb

Level 9

65,192 points

Oct 20, 2017 10:59 AM in response to BGreg

I have posted answer to a thread with screen shots , see if it helps Network password request

HuwPNE

Level 1

14 points

Oct 22, 2017 12:35 AM in response to tygb

Unfortunately not, but thanks for the advice

tbirdvet

Level 6

17,831 points

Oct 24, 2017 1:50 PM in response to WU-SLS

Unhide did not work for me. No 5GHZ WiFi connection.

tbirdvet

Level 6

17,831 points

Oct 24, 2017 2:22 PM in response to tbirdvet

Simple fix. I just rebooted router and now all is fine. Should have done this before trying all the rest of the suggestions in this conversation.

WU-SLS

Level 1

4 points

Oct 25, 2017 1:10 PM in response to potato_piano

Not that easy in an enterprise environment. But good to know.

HuwPNE

Level 1

14 points

Oct 26, 2017 12:00 AM in response to potato_piano

Should not have to do that; I have tried all of the suggestions listed and nothing has worked long term.

Occasionally WiFi connects, but shortly after disconnects

Stalksy

Level 1

4 points

Nov 7, 2017 3:00 PM in response to BGreg

My SSID is not hidden and I still have the issue, stating it works consistently may be a stretch.

WU-SLS

Level 1

4 points

Nov 8, 2017 7:42 AM in response to maerti

Just installed latest 10.13.1, tried the steps in the link above. I still have the issue.

kkayar

Level 1

9 points

Nov 8, 2017 8:12 AM in response to BGreg

High Sierra is the worst update so far. I have constantly WLAN drop off problems. Other seem to have this issue also. Apple we need a fix ASAP. I did not buy a mac to have this kind of problems.

Stalksy

Level 1

4 points

Nov 14, 2017 4:40 PM in response to KikeVera

Does anyone know if Apple are working to fix this?

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10.13 High Sierra Wi-fi issue