macOS Sequoia network issues

197GB out of 2TB. I'm using iCloud which manages the Desktop and Documents.

Seems to only effect my Mac Studio. My MacMini (M1, 16GB, 15.1) is fine (so far) in connecting to the same server and I can do exports from Premiere from that server with no problem (so far).

I wish 15.1 did fix the problem. It doesn't for me. Finder open to a directory on my 10GE copper link still randomly goes off in the weeds.

The intermittent black-window and magenta-screen issues on my Studio also remain from Sonoma.

Continues to be a problem on 15.2, Mac Studio, M1 Ultra

It's killing our business, anytime we have to do an export the network disconnects. We have to do all kinds of unusual and time consuming workarounds just to do day-to-day work.

We've done the usual turn off the firewall, turn off 'limit IP address tracking' etc. none of those did anything.

Hopefully this won't become the "Horizontal Line Render Issue" that the cylinder Mac Pros had that never really got fixed.

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!

I am experiencing the same issue reported by others. I’ve tried disabling “Limit IP Address Tracking,” but it hasn’t resolved the problem. I’m using a MacBook Pro with an i7 processor.

Everything was working fine prior to updating to macOS Sequoia. Since the update, I’ve had persistent internet connectivity issues — I frequently get disconnected. This occurs both on Wi-Fi and with a wired connection.

I would like to know how I can downgrade my macOS version until this issue is resolved.

Also been having network issues. Cannot connect to company server through Finder as I normally would. We do not use a VPN.

pest1 wrote:

Hmm seem to have struck a nerve lol

Not at all. You should see the other thread!

👍

I am having same sort of issue in my case I login to Diablo III and immediately disconnected I restarted the modem and nothing still happens never had this issue before.

iMac 27, Mac OS X 15

MacOS 15.1 fixes this problem

👍

Well the issue has returned even with firewall off. Will test wifi vs ethernet connection to see if any impact.

You're making an invalid assumption: that a wired connection is necessarily configured upstream.

I have a 10GE RJ45 connection to my NAS with RFC1918 addressing, and use Wifi for upstream.

It is not a bug. Apple turned off allowing incoming connection for http.

Just open System Settings > Network > Options and then turn http for incoming.

Worked for me.

HTTP has nothing to do with the route table being horqued, which breaks everything.