Apps that have already been given permission to access the local network intermittently block traffic. It appears the temporary solution is to turn off the apps permission in local network, and then to turn it back on.
Why? Does anyone have a permanent solution?
[Re-Titled by Moderator]
Hi again,
just for clarity, there are no third party blockers/cleaners/testers on these machines -- they're pretty much plain vanilla, with the exception of VLC & Firefox (with eyeTV on a couple of them).
The key point in my last message was:
"The problem is the OS does not persist the local network authorization grant over a power cycle."
I'd suggest that, if you shut down the client machine, and then power it up (with or without Safe Boot), you'll hit the same problem. Firefox reports "can't access <remote web server on local network>". If you then goto the Local Network grant list, toggle Firefox off & then toggle it on again, THEN try the same access on the local network, it works.
I'd contend that this is a bug in Sequoia -- it's certainly a feature introduced by Sequoia that doesn't persist over power cycles.
It confused my users enough I've rolled all the machines back to Sonoma -- my bad for not testing this out, as 'obviously they wouldn't break something that simple'. Sigh. 2024, eh?
The NAS is a Synology (planning on going to a diy truenas but that's in the future). If it was a firewall or something causing the issue on the NAS, then turning the local network access on and off (on my mac) wouldn't make it work. There is the NAS, HDHomerun, and many other computers (some linux, some mac, and one windoze). If Apple fixes the O.S. so the local network works properly, then any other network device will be fixed. Forgot the Reolink NVR - its sofware (from the app store) also suffers this issue.
There is nothing to fix in the OS, it is a local issue.
If you can't be bothered to troubleshoot on your side, then of course nobody here can help you.
Please see this other thread that I just found - How can I disable "Local Network" permiss… - Apple Community
This is the same issue (not just google).
All of my machines are Apple Silicon machines and my M4 Mac Mini suffers this issue the most (being my new daily workhorse).
Depends if the problem is actually access control related, or mDNS related - I just get a feeling that something is interfering with Bonjour network discovery, and it is not the OS per se.
Turn it off, turn it on makes it work. It is, in my opinion, the OS.
As a follow up, I have reported this to apple via their support chat and (per the chat request) as a bug via product feedback. Hopefully, someone will fix this.
it appears the latest AI spyware update has addressed this issue. now to remove myself from the apple ecosystem.
it is/was the o.s. - people cannot accept that apple is NOT perfect. so sad
I am having the same issue, 15.3.2 with firefox 136
Local network blocks apps despite given permission on macOS Sequoia
