This is a follow-up to my previous post about some mysterious TCP connection timeouts in the UC Berkeley wired network. I received many thoughtful emails in response to that post, and there was an excellent discussion on Hacker News. I’m very grateful to everyone who spent time helping with my ridiculous home networking issues. Since then, I’ve learned some new information that (mostly) solves the mystery. In this post, I’ll first summarize the main theories people suggested, then tell ...