10.13 High Sierra Wi-fi issue

I should have mentioned that 5Ghz is still a problem. :/ You can/MUST reset your network name/password. When you reset the router to factory settings, it gives everyone the same default network name/password. Just type your IP address into a browser bar, log in to the web admin interface and you can figure out how to edit the settings.

I unhid the SSID and now it won't connect at all. I think an update to 10.13.2 made the problem worse. I restarted the modem, apple airport extreme and no luck. Guess what, my HP laptop with Windows 10 works fine. Is apple trying to tell me to switch. Who cares about users, how could they release an OS with so many problems? I have spent way too much time trying to fix what has been broken. It seems like some things work for a few people, but not for the majority. Apple, please fix what you broke!

Have you disassociated (airport -z) your network?

Made sure you're not close to other overlapping channels, and all that jazz?

Followed by checking for removal of it from your Network settings> and a reboot... then rejoin.

My MBP rarely has the issue where I need to use it, and it's worked every time.

The older MB that I have, it needs to be done anywhere from once a day to once every two weeks. Since I started just removing it from the network panel and rebooting, it lasts a lot longer than just removing from network and trying to rejoin.

The for sure key for my networks; home and out in the public free wifi's:

is to disassociate first...

on my MBP, I usually don't have to reboot...

but on my older MB, often I do or put it this way, if I want a stable connection the next log in, I'll reboot on the MB.

The other thing that helps me personally; is setting it to the strongest signal; airport prefs joinMode=Strongest

One more note; on some wifi networks, especially the ones giving mac's in general a problem;

when I reset the mac address (sometimes several times until I find the right combo) that too also helps with SOME specific locations.

Instead of using a manual guess, I use a random setting and if for some reason the first does not work, and it's been known to happen - the second or third usually gives me a good long term connection. On my even OLDER MB, the first several 02:ab: have to remain a constant, and on one of my other laptops an old MBP it prefers the first two digits to remain the same & an older mb that died did the same.

So in my experience for me, the age will determine if you need to go the mac address change or not. The removal and or disassociation, some with reboot others without, usually gives me a long term connection.

I did unhide the SSID, it still wouldn't work after reboot. I then deleted the wireless network from the network preferences. I think I rebooted again, rejoined the network and for 4 to 5 wake from sleep, it is still finding my wireless network. This has been the most difficult upgrade I have ever done. I just hope it keeps working. I clean installed High Sierra on an external drive and it worked until I put the hard drive in the 2011 iMac. It seemed to have some problems after I made it the internal drive. I have heard that some have problems with photoshop CS6. I had one problem, but it has worked OK since. I won't install any more updates because I have no idea if apple will break something else. Right now, I am not real confident in what they are doing. Thanks everyone for the suggestions.

Small update 😉 managed to change the SSID on my router but still, the issue persists. At the moment WiFi is disabled and can't be enabled anymore even after resetting network. As my frustration grows, I've submitted a bug report as suggested by @bettercallsaul with the wifi troubleshooting log and sysdiagnose.

same problem here

13" macbook air A-1466 early 2015

upgrade from initial OS (10.10?) to 10.13.2

WIFI disconnects if screen locks or if book goes in sleep mode and does not connect anymore on wakeup or screen unlock

it does not help to switch wifio off and on again

it does not help to log out the user and log it in again

the only solution for now is a complete restart of the book

are u kidding cupertino ...?

hmmm

i spent an hour on the problem now

for the moment it seems like i could fix it with a complete reboot and a reconfiguration of the WIFI router (its a fritzbox)

but not shure if it stays like this ....

i hope so

That's what I had to do: completely start over and reconfigure the router, but it worked and has been good for a couple of weeks now. I believe the original poster said his/her ISP didn't "allow" any tinkering with router settings. That's like not being able to edit your own php.ini file. Time for a less paternalistic ISP.

What really interests and concerns me is that all of the other wifi devices in my household work just fine except my rMB once I updated to High Sierra.

Android phones and tablets.

Playstation 4

iPhones

iPads

Windowss pc’s

Roku

Chromecast

Chromecast

Smart TV’s

etc...

I am getting so tired of these types of problems for seemingly every upgrade or update.

Sigh ...

btw - I did the router route and I still have the no wifi issue on wakening my rMB.

Been there done that. Did that.

Got a hold of support, and the biggest problem I have is they immediately act like it is never an Apple issue rather something else.

Did everything they asked and the issue still exists. It was triggered with High Sierra.

Sigh...

five hours later ...

it wont reconnect to wlan again

i had about five sleeps and wakeups and a few screensaver periodes

reconnected without any problems

but now again like before

wlan status in the menue bar shows connected to my wlan

but no data ....

great .....

Of course Apple is going to blame the problem on everyone else. I too have a house full of other devices that do not have any problems. And they also said they did not slow down old iPhones for some time before they were forced to admit they actually were doing so with the excuse it is a battery issue. This is why I and many I know no longer trust Apple. I and others have switched and we now use android phones.

If you're using a USB-C dongle (adapter) with your MacBook Pro, there are some issues with WiFi being dropped and requiring a re-start while the dongle is unplugged. If are connecting any externals to your MBP, this video will fix the problem.

FIX for USB-C DONGLES MACBOOK PRO - YouTube

Sure, and while I am at it, might as well broadcast the PW (or better yet, disable a PW requirement altogether) alongside with with broadcasting the SSID . . .

Sorry about the sarcasm but my frustration level has reach its peak with this issue - just to make sure I get this right: is Apple telling us that going forward they will DISCOURAGE admins from hiding the WIFI SSID?

I understand the spirit of the suggestion being along the lines of "if you want an immediate quick-and-dirty solution here it is" and, having tried it successfully I concur that it works, but does anyone at Apple believe that this is even remotely acceptable as a long term solution?

As far as I am concerned, this is a major issue for High Sierra and Apple HAS to address it - however, if past performance is any indication of future response, I am not quite holding my breath.

Apple? You say what?