Problems with WiFi on macOS Big Sur

App & System Services Core OS
rodero95 OP
Created Jun ’20
Replies 142
Boosts 0
Views 86k
Participants 131
I've updated to Big Sur from Catalina and I'm having trouble when connecting to WiFi networks. At first no network appeared and now even though it has connected silently to my usual network, it is showing as no connected, but internet actually works.

Anyone having this kind of problems so far? I haven't seen anything related on the forums nor the release notes.
Answered by Frameworks Engineer in 613924022
Could you please report this via https://feedbackassistant.apple.com and attach a sysdiagnose?
You can trigger a sysdiagnose by running sudo sysdiagnose from Terminal. Thank you!
Replies  142
Boosts  0
Views  86k
Participants  131
Frameworks Engineer OP
Apple
Jun ’20
Accepted Answer
Could you please report this via https://feedbackassistant.apple.com and attach a sysdiagnose?
You can trigger a sysdiagnose by running sudo sysdiagnose from Terminal. Thank you!
rodero95 OP
Jun ’20
I did, but was curious if someone else was getting the same behaviour.

Thanks for your reply!
15458434 OP
Jun ’20
I do. I can’t connect through WiFi with anything.
mmacca OP
Jun ’20
No wi-fi and no connection
rodero95 OP
Jun ’20
I tried reinstalling system from recovery and everything seems normal now. Maybe that helps.
jdpierce21 OP
Jun ’20
I am having the same issue on my iMac (Retina 5K, 27-inch, Late 2015). Wi-Fi icon in the menu bar has a line through the Wi-Fi icon. When I click on the Wi-Fi icon from the menu bar, it first beachballs, then the drop down appears, and then I can attempt to turn Wi-Fi on. However, it will not turn on.

Going into System Preferences > Network > Wi-Fi, at first the settings under Status: says "<
Laura1 OP
Jun ’20
Yesterday I had only 1 W-Fi bar, running Big Sur on new MBP 16in. I restarted computer and it was fine. To be fair, initially the MBP was connected to my main gateway which is a number of thick walls away, and not connected to the extender pod in that room. When I restarted the MBP it connected to the pod with full bars. I installed Big Sur on my iMac 2018 27in today and have full Wi-Fi bars.
mmacca OP
Jun ’20
Same problem here
entered recovery mode, re-installed X-Code 12 and Big Sur
now Wi-Fi is working even faster than before but no Wi-Fi icon

axolotl OP
Jul ’20
Has anyone found any solution to this without reinstalling the OS? Maybe there is a preferences file to be cleared that can fix this?
axolotl OP
Jul ’20
If anyone else has this issue, if you follow the steps on this post apple.stackexchange.com/questions/284581/wipe-all-wifi-settings-from-macbook will restore wifi.
jrgibson1 OP
Jul ’20
@Developer Tools Engineer - I am still having dropout issues on the second beta. I sent feedback in regards to the first beta, should I just update that ticket or close it off and start a new one?
erwinlemueloliva OP
Jul ’20
Having the same issues connecting to my wifi after upgrading to Big Sur as part of the Developer's Beta. I'm trying to report this incident through the Apple feedback system but the Internet keeps on disconnecting. Help!
Candradasa OP
Jul ’20
I also had this issue today after installing beta 2. I followed the in instructions at the link below (thanks @axolotl) and it resolved itself perfectly, so far!
rubale OP
Jul ’20
earlier today i upgraded to macOS Big Sur public Beta 2 - and since then the Mac won’t connect to the internet....

i tried everything in this thread- but with no luck.

Anyone else seeing this?
And know how to solve it?
ghartnett OP
Aug ’20
Issue still exists in Beta 4. Connects for approximately 2 minutes, then drops, even though shows connected to my network. Anyone have any solves? Right now, Beta 4 is unusable.
4nt01n3 OP
Aug ’20
A nvram/pram reset did the trick for me.
fakename123 OP
Aug ’20
macbook pro mid 2015 shows green light on wifi connection, but no browsers or other programs can connect to the internet.
I tried resetting pram, and deleting my wifi preferences as suggested by axolotl

I also tried to connect to ethernet via thunderbolt display, and no luck there either.
skment OP
Aug ’20
I'm having a similar issue – after wake my MBP is connected to a blank/ghost network which it has to be manually disconnected from and connected to the home/workplace wifi.
JohnW78 OP
Sep ’20
Just had this going from beta 5 to beta 6. Reset my router turned on/off Wi-Fi, “forgot” networks and reset them up. It would only assign an up of .2 or .23 when it normally would be in the .170 range. Wouldnt recognize the usb c network adapter either not my phones hotspot. Couldn’t sign in to submit a bug report.

rebooted to recovery and it complained about being unable to reach the network when I tried to install, but when I tried again it started to install. With some luck it will be back up and running.
Vitman75 OP
Sep ’20
I have the same issue - tried all the steps mentioned here - reinstallation (with USB-C Ethernet adapter) - and it installed the same Big Sur version. It doesn’t see the USB-C network card now when the OS is loaded (only in recovery). Ran sudo sysdiagnose but it’s 400 MB, will try to upload through phone if I can get it off with Airdrop. Really frustrated as this is the first Mac Beta that has become a showstopper for me. Can someone help?
Jerryniks OP
Sep ’20
i was using iphone max xs hotspot to connect to my mac book air late 2015 running catlina. Just upgraded to ios 14 on my cell and beta BIgSur.

since i have done these upgrades, i am so disappointed, mac book does not even diagnose iphone hotspot which has been selected as default auto connect option. Only way i can connect to is is getting into other connections and selecting the hotspot manually.

once the phone or macbook goes idlw, connection is lost and can only be restored if i do network reset on iphone.

i am frustrated and go back to catalina.

how do i fix this issue?

moreover once you manage to connect again, internet dows not work though it states connected.

other hotspot connections with my ipad and android work fine
CorsaBlueK5 OP
Sep ’20
Updating to Big Sur Beta 9 (released this morning) via Safe Boot solved this issue for me. I had tried literally every fix mentioned. If you're still seeing this issue, do the following:

Shut down your Mac
Hold the left Shift key and power on
Release Shift when able to choose your user and enter your password (if on a corporate owned Mac as I am, you may be prompted to log in again using username and password)
Go to Prefs > Software Update
Update to Beta 9 and realize that Microsoft Teams notifications have no content, but YOU HAVE INTERNET. Huzzah.
kpfarrell33 OP
Oct ’20
I'm using a macbook pro 16, use my hotspot frequently in the past on catalina. Upgraded and running big sur beta 9, and was having a heck of a time getting my iphone hotspot to connect reliably. Would connect, but not get ip, or would connect and get ip but no internet. Very frustrating. I found if I connected to my wife's iphone (which I never do), it seemed to work. Or, connecting to a real wifi network, also ok.

I did a NVRAM reset, didn't seem to fix.

I did a SMC reset, and resolved issues entirely for me.

I am typing this connected to my iphone hotspot! :-)
AppleFanForLife OP
Oct ’20
Hi I’m using a MacBook Pro 2015 late model I installed big sir as also being a beta tester and developer not able to turn on WiFi hope anyone has found any solution to the issue of found pls mail on email-sahajverma09@gmail.com
phatblat OP
Nov ’20
NVRAM reset worked for me. (Early 2020 13” MBP)
Problems with WiFi on macOS Big Sur
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