MacOS Sequoia installed. Internet will randomly drop connection

Hi


I have a an M2 Max Macbook Pro with 32Gb of RAM. I installed MacOS Sequoia today. After installation, I started getting intermittent random internet connection/server busy messages on a black screen and this will go on for say 30 seconds or more and then randomly it will be back to normal again.


I have restarted the macbook pro. I have restarted the docking station. I have removed the ethernet cable connected and reconnected it after restarting the docking station. I still get the same problem showing up randomly.


Any suggestions?


Tsinoy Newbie





MacBook Pro 14″, macOS 15.0

Posted on Sep 16, 2024 8:26 PM

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Question marked as Top-ranking reply

Posted on Sep 27, 2024 11:36 AM

As I noted in another thread, this is a widely reported bug in Sequoia (just google intermittent internet connection Sequoia). As stated, on that thread and here, turning off the built-in firewall usually works, it did on my 2019 intel imac and 2023 mac M2 studio. If you have a managed mac and cannot turn of firewall no good options that I know of. Interestingly, the packet filter (PF) firewall app MURUS works just fine on both my computer's but not the built-in firewall setting when enabled. Curious since Murus is just a GUI app for macOS built-in PF firewall.

113 replies

Sep 23, 2024 6:01 AM in response to Tsinoy Newbie

Hi, I have an desktop iMac M1 with 8 GM memory and I am having the same issues. I just went into my network settings and adjusted the private wi-fi settings from "fixed" to "rotating" and I tried Zoom again this morning and its still slow but I didnt get the "unstable internet connection" error...yet. Here's hoping! I use zoom everyday all day for work and I dunno what to do, other than switching to my macbook pro laptop, until Apple fixes this. I dont really understand the comments about the "little snitch" in the VPN...what is that? I am really struggling with this as I am not a computer person so I am a bit tech illiterate.


Pray for me....I may end up sending this iMac to the moon, Alice! But seriously...if anyone comes up with a fix, please let me know!

Sep 27, 2024 11:53 AM in response to pest1

pest1 wrote:

Interestingly, the packet filter (PF) firewall app MURUS works just fine on both my computer's but not the built-in firewall setting when enabled. Curious since Murus is just a GUI app for macOS built-in PF firewall.

The packet filter is a low-level networking system. The application firewall that is causing so much trouble is actually a different system. People who have investigated it in the past say that it seems to be implemented using pf underneath.

Oct 13, 2024 10:16 PM in response to Macs Pain

Macs Pain wrote:

"Anyone using Handbrake? Transcoding videos completely breaks the
internet connection now on that Mac, doesn’t matter if WiFi or wired…"

Looks like the 15.0.1 update fixed this for me. :)

15.0.1 makes it worse for very many people. Suggest avoiding this update. Turning off the firewall helps, assuming you have Little Snitch as well. Do not suggest running with absolutely no firewall.

Feb 15, 2025 9:29 AM in response to mhowie

Good deal, watching with interest.


Another buggaboo it could be...


RichardFoo User level: Level 1 (4 points)

Feb 15, 2019 4:24 PM in response to TimsTech

I've been debugging a problem with my VPN client constantly reconnecting, along with poor WiFi performance. After much digging, I came across an excellent article - although written for Yosemite and iOS8, it still seems to be relevant to Mojave, especially with a newer WiFi chip in the 2018 MacBook Pro. https://medium.com/@mariociabarra/wifriedx-in-depth-look-at-yosemite-wifi-and-awdl-airdrop-41a93eb22e48


The author wrote a program that essentially just issues a command and keeps it enforced. You can try it manually in a terminal window: sudo ifconfig awdl0 down

To reverse the command, type: sudo ifconfig awdl0 up


He gives a great technical explanation, so I won't repeat it here. The command disables a virtual network interface that's used for ad-hoc WiFi by features like Airdrop; I personally won't miss them. So far, I've gone from losing my connection 20 times an hour to being stable for 3+ hours.


netstat -v |grep "CLOSE_WAIT" | grep -i "iphone\|ipad" |awk '{print $9}' |sort |uniq | xargs kill

And curl says "Can't assign requested add… - Apple Community



Sep 19, 2024 9:46 AM in response to Tsinoy Newbie

Similar situation: m3 max, sequioa 15.0; little snitch (up to date), express vpn, proton vpn as backup.


since updating internet has been very broken despite attempts at troubleshooting and trying to find the cause. I’ve tried all fixes provided, still abysmal. Will probably Time Machine prior to sequioa until things get fixed.

Sep 21, 2024 11:21 PM in response to Tsinoy Newbie

I am facing the same issue on a M3 MacBook Pro. It drives me mad when doing video calls via Zoom or Teams, every 30-60 seconds my internet connection drops for a few seconds. Happens both on WiFi and Ethernet. Other devices without Sequoia work fine.


I deleted the network configs, I flushed the DNS cache, I tried using different DNS servers, I deactivated virus protection software. Did not help.


Apple engineers, we need you!

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MacOS Sequoia installed. Internet will randomly drop connection

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