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macOS Sequoia network issues

Like many others, Sequoia started behaving very sluggish from the very beginning. The computer itself was slow, but I also had trouble accessing the company's Microsoft 365 environment. I couldn't access SharePoint, OneDrive repeatedly asked me to log in, DNS resolution frequently didn't work, Teams refused to allow me to join meetings, the browser versions of Office, Excel etc didn't work, etc.


First thing was to uninstall the VPN software I sometimes have to use to connect to the office network from home. I'll wait for the vendor to release an update.


While at the office, my MacBook Pro is connected to both WiFi and cabled Ethernet. Once I unplugged the cable, things started behaving better - that's clearly a bug, and it has always worked just fine in older versions of macOS.


Setting Private Wi-Fi address to "fixed" helped with the frequent network disconnects. I've now set it to "off" (because I rarely use public Wi-Fi networks).


Things are now mostly back to normal. I hope this helps others struggling with similar issues.

MacBook Pro 15″, macOS 15.0

Posted on Sep 19, 2024 2:07 PM

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Posted on Sep 26, 2024 6:25 PM

Yes, this is a widely reported bug in Sequoia (just google intermittent internet connection Sequoia). As stated turning off the firewall usually works, it did on my 2019 imac and 2023 mac studio. This appears to be the only workaround until Apple fixes the network bug(s). The real question is, of course, why did Apple release an operating system update where many Mac owners have to to turn off the built-in firewall to get a stable internet connection?

67 replies

Sep 26, 2024 7:31 PM in response to pest1

pest1 wrote:

why did Apple release an operating system update where many Mac owners have to to turn off the built-in firewall to get a stable internet connection?

Apple releases a new operating system every year. People line up with their download buttons like the biggest Black Friday sale ever held. They will even download special software to hack up their system just so they can run the operating system on unsupported hardware.


There is no number or severity of Apple bugs that could possibly stop this addiction to updates.


And Sequoia has been one of the most trouble free releases in recent years.

Sep 29, 2024 1:42 AM in response to etresoft

I have a problem with the ethernet connection. I send photos from Nikon Z8 camera to Macbook pro 14 M3 via LAN cable and ethernet adapter. After upgrading my system from Sonoma to Sequoia, my connection stopped working. "Connecting to computer" is constantly on the camera screen and nothing else. I tried turning off the firewall - it didn't help, reinstalling the utility from Nikon - it didn't help.

I set up a new LAN connection from the beginning with camera management in the utility - it didn't help. Can you please advise me of something I might have overlooked? That is, how do I get back to OS Sonoma?

Sep 29, 2024 7:46 AM in response to Drakemm

Drakemm wrote:

I tried turning off the firewall - it didn't help, reinstalling the utility from Nikon - it didn't help.
I set up a new LAN connection from the beginning with camera management in the utility - it didn't help. Can you please advise me of something I might have overlooked?

Firewall is one thing. The next thing is also firewall, or rather, any other kind of 3rd party "privacy" or "security" app that hacks around with network internals.


Also check System Settings > Network > WiFi > Private WiFi address and make sure it is set to "fixed".

That is, how do I get back to OS Sonoma?

That's a different question altogether. Create a bootable USB installer. Boot to recovery. Erase the hard drive. Reinstall Sonoma, restore from backup created before installing Sequoia.

Oct 11, 2024 5:01 AM in response to Starbreeze

In my case, uninstalling the third party Sophos Endpoint Protection software seems to have resolved constant disconnections of my Citrix Workspace sessions and other strange networking issues I've been experiencing since OSX updated on Monday.

I use a cabled ethernet connection with a static internal IP address so Wifi random IP address wasn't the problem. Also the OSX firewall was - and still is - enabled.

Will be testing re-installing the SEP software later today, to see if it interacts with the OS in a more stable manner after going through a full install process onto the new OS version.

Oct 24, 2024 4:15 AM in response to Starbreeze

OK, I've had enough of the drop outs. As a I posted, the only thing that seems to work, but not always now, is toggling WiFi off and on. I was doing something important on my Mac today and the internet dropped out again. After spending 10 minutes trying to get the internet working again, I had to start my work over. This is a very poor showing from Apple - is there a fix rumoured to be coming soon?

Oct 27, 2024 5:03 PM in response to Bill Walker2

After pressing post on the above I closed the computer used to log on the server vis VPN and went to bed. Next day (27th) the problem has returned. Server Terminal app was left open on the server and when logging I found these strange lines on the terminal screen that appears to have been created by about 1 minute (26th) after I made the above post and close VPN connection.


=> Successfully stopped `httpd` (label: homebrew.mxcl.httpd)

==> Successfully started `httpd` (label: homebrew.mxcl.httpd)

lowerlevel@70-89-220-117-clean-air-engineering-il ~ % 

 [Restored Oct 27, 2024 at 5:48:45 PM]

Last login: Sun Oct 27 17:48:45 on ttys000

You have new mail.

lowerlevel@70-89-220-117-clean-air-engineering-il ~ % >....                                          

2024-10-26 22:48:41.548060 <Notice>: Last log repeated 1 times

2024-10-26 22:48:41.547173 (gui/501 [100003]) <Warning>: denied lookup: name = com.apple.contactsd.persistence, requestor = searchpartyuser[19692], error = 159: Sandbox restriction

2024-10-26 22:48:42.000201 <Notice>: Last log repeated 1 times

2024-10-26 22:48:42.000151 (system/com.openssh.sshd.6A33D7FA-D690-4228-9D58-38BB7C55BD07) <Notice>: internal event: WILL_SPAWN, code = 0

2024-10-26 22:48:42.000184 (system/com.openssh.sshd.6A33D7FA-D690-4228-9D58-38BB7C55BD07) <Notice>: service state: spawn scheduled

2024-10-26 22:48:42.000189 (system/com.openssh.sshd.6A33D7FA-D690-4228-9D58-38BB7C55BD07) <Notice>: service state: spawning

2024-10-26 22:48:42.000272 (system/com.openssh.sshd.6A33D7FA-D690-4228-9D58-38BB7C55BD07) <Notice>: launching: ipc (socket)

2024-10-26 22:48:42.001722 (system/com.openssh.sshd.6A33D7FA-D690-4228-9D58-38BB7C55BD07 [93499]) <Notice>: xpcproxy spawned with pid 93499

2024-10-26 22:48:42.001762 (system/com.openssh.sshd.6A33D7FA-D690-4228-9D58-38BB7C55BD07 [93499]) <Notice>: internal event: SPAWNED, code = 0

2024-10-26 22:48:42.001769 (system/com.openssh.sshd.6A33D7FA-D690-4228-9D58-38BB7C55BD07 [93499]) <Notice>: service state: xpcproxy

2024-10-26 22:48:42.001794 (system/com.openssh.sshd.6A33D7FA-D690-4228-9D58-38BB7C55BD07 [93499]) <Notice>: internal event: SOURCE_ATTACH, code = 0

2024-10-26 22:48:42.013150 (system/com.openssh.sshd.6A33D7FA-D690-4228-9D58-38BB7C55BD07 [93499]) <Notice>: service state: running

2024-10-26 22:48:42.013172 (system/com.openssh.sshd.6A33D7FA-D690-4228-9D58-38BB7C55BD07 [93499]) <Notice>: internal event: INIT, code = 0

2024-10-26 22:48:42.013207 (system/com.openssh.sshd.6A33D7FA-D690-4228-9D58-38BB7C55BD07 [93499]) <Notice>: Successfully spawned sshd-keygen-wrapper[93499] because ipc (socket)

2024-10-26 22:48:42.017663 (pid/93499 [sshd-keygen-wra]) <Notice>: uncorking exec source upfront

2024-10-26 22:48:42.017685 (pid/93499 [sshd-keygen-wra]) <Notice>: created

2024-10-26 22:48:42.021595 (pid/93499 [sshd-keygen-wra]) <Notice>: domain exec event

2024-10-26 22:48:42.021606 (pid/93499 [sshd-keygen-wra]) <Notice>: shutting down

2024-10-26 22:48:42.021616 (pid/93499 [sshd-keygen-wra]) <Notice>: cleaning up

2024-10-26 22:48:42.021623 (system) <Notice>: removing child:


Note that the Server Firewall has been on for months. The server is owned by a corporation and has 3rd party protection software installe and related user named Ntiva which is an admin User.

I will check with corporate IT tomorrow to see if Ntiva has messed with the server.

macOS Sequoia network issues

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