10.13 High Sierra Wi-fi issue

Remove the WIFI from your preferences and or first include a reboot.

That fixes it for me for awhile. Some networks require me to move them to the top of the list.

If I remember to do a restart every week prior to that, it seem to take much longer to come back.

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.

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

Please report this to Apple:

Product Feedback - Apple

Mac's are not known for ease of WIFI.

Am I correct in assuming you have a router that broadcasts both 2.4 & 5 ?

If so, I would suggest you rename them separate names, and log into one and try that.

I assigned a fix IP adress to the MBP MAC-adress and that fixed it for me.

same here, no issue with Sierra on my MBP Retina 15-inc (Mid 2015). Seems like only High Sierra my MBP is not connecting to the 5Ghz. Have no issue with connecting to the 2.4Ghz but not 5Ghz.

I would say there is a bug in the OS.

Same problem here too. Broke connection to Asus router, where SSID is hidden. My workaround solution is connection with android tethering/hotspot with public SSID which works. Can't access my LAN files now though.

I always thought OS 10.13.1 would have fixed it, but that was not the case. I recommend to create a second account for the router at home with another user name and password. I have an AT&T router and that worked for me.

That doesn’t work on mine. All hidden networks are forgotten regardless of what I do before reboots or wake ups. Only the Script that I use now to run on startup works, and that only until my mac goes to sleep. On wake up I have to manually run either the script or manually search and join the hidden network.

Apple really needs to get this fixed. Maybe we get lucky and the patch they are sending out to fix the root login with no password issue will have a wi-fi fix included.

Agreed withBGreg.

10.13.2 does not fix the problem. Mid 2011 Mac with hidden known network SSIDs from Apple Airport Express. The networks are listed in the Advance tab Preferred Networks listing and they should at least be tried by the macOS before it gives up. In addition, I experienced System Preferences>Network locking up and required a force quit while troubleshooting in 10.13.2. This is Apple’s own infrastructure in my setting and an issue that they cannot place arrogant blame on the rest of the IT space.

This Mac is the only ip device of 20+ in the house - including iPad and iPhones - that is having connectivity issues. This might also be an issue with Keychain as I have seen networks in the preference list that only the iPhone or iPad would have seen and since this issue is only on the desktop Mac that never leaves the house. And, issue remains after removing unnecessary networks.

Apple cannot dictate whether a network should be broadcasting or not and must conform to the options available from the networking standards. The difficulties of network issues are not new on the Mac. Any Apple product that wants to be proprietary but not user friendly is not what Apple should be known for and not what Jobs would stand for from his products or designs. Apple needs to hire real networking expertise and fix this problem instead of avoiding the frustration of its users. Apple has too many alternative competitive options if they don’t fix their own infrastructure issues.

Thanks for sharing, bettercallsaul. You are a prime candidate to report this issue to Apple Support as you are probably still under warranty. You may save a lot of people from experiencing this continuing frustration if you would be so kind as to report the issue to Apple and refer them to this thread. The macOS WiFi should behave per the standards regardless and it should remember the networks it has connected to in the past, whether the SSID is hidden or not. Apple cannot pick and choose compliance for their convenience. They need to comply with the established standards. Thanks in advance.

Thanks for your reply. Did a hardware reset of the router moments ago, will test with the iMac if it can keep connection after that reset. Network name can't be changed (locked by the ISP).

I'll report back after a few tests!

Edit: Because the 5Ghz was most troublesome, I tested that out. It got connected at first but quickly dropped the connection, it tries to reconnect causing the iMac to slow down, the spinning wheel that goes round and round when hovering the wifi icon. During that, the keyboard fails to even type, mouse does work. Wifi resets itself from off to on and reconnects to the 2.4Ghz network. Whilst trying to reconnect with 5Ghz channel it now gives an error that It couldn't connect and says I should get closer to the router (I'm only 10 feet away from it). Will give further try on 2.4Ghz channel to see if issues are still there.

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 ...?