After upgrading to Sequoia 15.6.1 Plex stopped working or launching. Output from Plex Server start from terminal. I also have 486K dmg file (more detailed log?).
/Applications/Plex\ Media\ Server.app/Contents/MacOS/Plex\ Media\ Server
libc++abi: terminating due to uncaught exception of type boost::wrapexceptboost::system::system_error: listen: Can’t assign requested address [system:49 at /System/Volumes/Data/data/actions-runner/_work/plex-media-server/plex-media-server/build/dependencies/plex-media-server/standard-x86_64-apple-darwin-macos/boost/include/boost/asio/detail/reactive_socket_service.hpp:161]
****** PLEX MEDIA SERVER CRASHED, CRASH REPORT WRITTEN: 1E591F86-8A16-491B-A968-7608AE948FB0
Can you verify port 32400 isn’t currently used by any other app on your system (maybe some stale server running in the background)?
You might find that in Activity Monitor or using the Terminal app using sudo lost -i :32400.
This will list any process listening to port 32400. You could afterwards use kill -9 <PID> where <PID> is a placeholder for the process to be stopped (listed in the output of the previous command).
OS Version: macOS 15.6.1 (24G90)
App Version: 1.109.0
Model: MacBookPro16,1
The crash occurs in the “PMS RunServer” thread during server initialization, likely when trying to bind to network interfaces.
The main thread shows Qt/QML component loading issues, which explains why the UI components fail to initialize properly before the networking crash occurs.
“Plex Media Server 1.109.0 crashes immediately on startup with network binding failure on macOS Sequoia 15.6.1. The crash occurs in PMS RunServer thread during network interface binding, with error ‘Can’t assign requested address’. This appears to be a compatibility issue with macOS Sequoia’s networking stack changes.”
I’m confused… what exactly is crashing?
Your first logs were based on PMS 1.42.1.10060 and show the server running into an error when attempting to allocate the local port (32400).
Your next post seems to focus on the Plex for Mac desktop app (which is crashing too? → “the UI components fail to initialize” and version referencing to 1.109.0).
I installed PMS on my iMac (macOS 15.6.1) and was able to start it ok, so it doesn’t appear to be a general issue (like a general incompatibility). Do you have any kind of content blockers / security tools installed that might interfere with PMS starting up / binding its local port?
