

Multiple reports on Apple’s community forums and open-source projects describe symptoms that match this bug precisely:
- Apple Community #250867747: macOS Catalina — “New TCP connections can not establish.” New connections enter SYN_SENT then immediately close. Existing connections unaffected. Only a reboot fixes it.
- Apple Community #252991075: “Mac Pro TCP/IP stops working.” TCP completely fails, but ping (ICMP) works normally.
- Podman issue #12495: “podman machine network connectivity stalls after some uptime” on macOS 12. The VM running on macOS shows outbound TCP failure with ICMP still functional, occurring after running for multiple weeks.


https://www.cnet.com/culture/windows-may-crash-after-49-7-days/