% netstat -an | grep -c TIME_WAIT | wc -l 1

Aloisius · 2026-04-06T21:43:40 1775511820

You want to drop the wc -l.

Mac `grep -c` counts lines that match, so it always prints 1 line, so piping to wc -l will always return 1.

Or just open up and do netstat -an |grep TCP_WAIT and just watch it. If any don't disappear after a few minutes, then you're seeing the issue.

comex · 2026-04-07T05:15:44 1775538944

They probably aren’t affected because the buggy code was only added in macOS 26:

pjjpo · 2026-04-07T09:15:24 1775553324

Ouch - "every Mac" from the original post is a hallucination then.

I can live with the writing style when the topic is interesting (here it was for me) but complete untruths are much worse.