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A macOS bug that causes TCP networking to stop working after 49.7 days

We Found a Ticking Time Bomb in macOS TCP Networking â It Detonates After Exactly 49 Days - Photon Blog

photon.codes

April 6, 2026

1 min read

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55/100

Summary

A flaw in macOS TCP networking causes a failure in connections after 49 days of uptime. This issue can disrupt network services and affect applications reliant on persistent TCP connections.

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Coverage & discussions

Hacker News · photon.codes

A macOS bug that causes TCP networking to stop working after 49.7 days ↗

Community discussions

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Historical count: 5 · 5 saved in sample · Historical sample

Analysis ready

Community Sentiment

Mixed

Positives

Simulating the environment to test for long-term bugs can enhance reliability, suggesting that proactive testing methods could prevent similar issues in the future.
The fact that many users have experienced long uptimes without hitting the bug indicates that the issue may not be as widespread as initially feared.

Concerns

The bug's potential impact is overstated, as very few users are likely to encounter it, which raises questions about the article's alarmist tone.
The lack of communication with Apple regarding this issue suggests a gap in addressing critical bugs that could affect user experience.