MacOS Sequoia installed. Internet will randomly drop connection

I'm on a MacBook Air M3 and have experienced drops via Ethernet, WiFi (Home/Office), and my hotspot. I recently changed the "Private Wi-Fi address" from off to Fixed and set the Ethernet connection hardware to manual in hopes that this is a solid workaround.

The moment I unplugged my lan cable my browser page loaded instantaneously.

I also tried turning off WiFi with the cable plugged in with no success. So it seems to only have an issue with the cable connection for some reason.

this intermittent network failure is just since I update my m1 Air to 15.2.

I think this is probably due to the adapter you are using for Ethernet. I have a cheap adapter and sometimes it crashes. When that happens removing it immediately puts wifi as the active connection and internet access is restored. Reconnecting the adapter then also works (until it crashes again).

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

I have found out that the issue does not happen, when connected via WiFi, private relay disabled, firewall disabled, private MacAddress disabled.

But as soon as I use a cabled connection, it does fail only when VideoCalls happen. In this case, the whole network stack fails for some seconds. (Running a ping to some host will just return errors, open ssh connection might disconnect). The connection is fine when no video call happens.

Slack actually freezes for some seconds, Teams brings a "network issue" randomly.

This is really annoying.

My "solution" is to use a WiFi instead of a cabled connection and live with less reliability and speed.

BTW, no difference if littlesnitch is enabled or disabled.

Same here and the latest OS update did not resolve the issue

Ever since I installed Tailscale... Now it is uninstalled

64 bytes from 77.238.180.11: icmp_seq=14 ttl=55 time=47.022 ms

64 bytes from 77.238.180.11: icmp_seq=15 ttl=55 time=62.702 ms

64 bytes from 77.238.180.11: icmp_seq=16 ttl=55 time=48.437 ms

64 bytes from 77.238.180.11: icmp_seq=17 ttl=55 time=30.948 ms

64 bytes from 77.238.180.11: icmp_seq=18 ttl=55 time=31.870 ms

64 bytes from 77.238.180.11: icmp_seq=19 ttl=55 time=245.318 ms

64 bytes from 77.238.180.11: icmp_seq=20 ttl=55 time=282.732 ms

64 bytes from 77.238.180.11: icmp_seq=21 ttl=55 time=313.667 ms

64 bytes from 77.238.180.11: icmp_seq=22 ttl=55 time=28.261 ms

64 bytes from 77.238.180.11: icmp_seq=23 ttl=55 time=28.631 ms

64 bytes from 77.238.180.11: icmp_seq=24 ttl=55 time=29.847 ms

Request timeout for icmp_seq 25

Request timeout for icmp_seq 26

Request timeout for icmp_seq 27

Request timeout for icmp_seq 28

ping: sendto: No route to host

Request timeout for icmp_seq 29

ping: sendto: No route to host

Request timeout for icmp_seq 30

ping: sendto: No route to host

Request timeout for icmp_seq 31

ping: sendto: No route to host

Request timeout for icmp_seq 32

ping: sendto: No route to host

Have similar problem on my Mac M1 MAX after upgrading to Sequoia.

Randomly my Mac stops loading arbitrary websites. Like GitHub or Facebook or any others. It happens without any logical circumstances. Sometimes it’s automatically fixed within 5-10 mins. Sometimes I have to switch off/on wi-fi on laptop.

Definitely not related to the internet provider. Other devises works like a charm.

Based on my own investigation and debugging seems to be a problem

with firewall on Sequoia OS

Extremely annoying, can’t normally work. Please help

ALR1976 wrote: "I hope this post helps the Apple team fix the Wi-Fi issues introduced with Sequoia..."

Andres ~ As these are user-to-user communities, you may have better luck connecting with Apple here:

Feedback - macOS - Apple

Contact Apple for support and service

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Going to try turning off Apple Intelligence as well to see if that helps.

The loss of network connectivity has been problematic for me as well with a Mac Studio, M1 Max machine. Periodically everything connected to the Internet- web pages, programs, etc., simply stop. I've tried all the suggestions within this thread and nothing helps. Fortunately- for me- it isn't happening daily but it does seem to occur at least weekly. The only solution is to restart the machine. I never had this issue prior to Sequoia, so yet another bug seemingly introduced by Apple with this OS. Annoying...

I'd note my Windows 10 machine- also connected to the the same network via the same Ethernet and WiFi connections- is rock solid and doesn't lose connectivity during these instances. This is isolated to my Mac Studio and is 100% an Apple issue.

Hopefully enough customers raise the issue such that a fix could be provided. They created the problem, they need to fix it!

ddoonnii wrote: "...wtf apple, pls help us out🙏"

Apple isn't here; use these:

Feedback - macOS - Apple

Contact Apple for support and service - Apple Support

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Might try this...

macOS Sequoia network issues - Apple Community

I've had problems, both on my M2 MacBook Air and my iPhone 15. From what I can tell, these new OS releases interfere broadly with a number of applications, as well—in my case—my eero router. I can't use Proton VPN or Tailscale without losing connectivity completely.

What a disappointing mess of a release from Apple.

Well if you have MAC Filtering enabled on your router this new feature that Apple instituted with little forewarning in the WiFi settings>Details it throws your connecting to the internet right off. The three settings are

Off: Your network interface uses the default MAC address it was

given when it was manufactured.

• Fixed: The new default setting, Fixed gives your network interface

a different, private MAC address, the upshot of which is that devices

on your local network (such as routers and other computers) will

still be able to track you by MAC address, but tracking beyond your

local network (that is, anywhere else on the internet) is harder.

• Rotating: With this setting, your Mac periodically changes the

network interface’s MAC address, which makes it harder for other

devices to track you, whether or not they’re on your local network.

Thanks etresoft.

The computer is managed. It is a work computer.

No VPN in use, but we do have EDR/AV implemented.

Because the security apps are centrally managed and deployed it's non-trivial to simply disable them. And if I need to disable our corporate security measures to accommodate this OS version that will be a problem.

If this does turn out to be a problem between the security apps and the OS I fully expect Apple and the other vendors will work it out quickly.

In the meantime I'll be at my desk testing things. :-)

And if I learn anything I'll update this thread.

Thanks.

Do not enable the built-in firewall. Do not run 3rd party "security" apps.

I mean, well, you can certainly do both of those if you want. It's your computer. But you're going to have to quit your job and spend a few quality months learning really low-level networking stuff and doing a lot of QA work for some really wealthy corporations. They will appreciate it, certainly. So will the engineers who haven't quit their jobs and are still being paid. You're doing their job for them. That's why they could go on vacation all summer to Costa Rica instead of debugging their products with the new Apple operating system. They know you'll do that work for them for free when they get back all tanned and relaxed.