Date: Tue, 2 Jun 2026 08:01:09 -0700 From: Adrian Chadd <adrian.chadd@gmail.com> To: David Wolfskill <david@catwhisker.org> Cc: wireless@freebsd.org Subject: Re: Recent (accidental) experiments Message-ID: <CAJ-VmonrbGwus-jCT=GwBYr5B7wjo7S4Eo8kVrQtgp-hefyhCg@mail.gmail.com> In-Reply-To: <ah7e9tAQsh9olq7M@albert.catwhisker.org>
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On Tue, 2 Jun 2026 at 06:47, David Wolfskill <david@catwhisker.org> wrote: > > TL;DR: I found a case where iwn(4) apparently declined to associate > while running head, but did associate & (mostly) work under stable/15. > > Background: I have accumulated some laptops of varying vintages and > attributes. Each of them (save one, and with the addition of a headless > "build machine) is subjected to a daily regimen: > > * update stable (/15, at this time); > * update all installed ports; > (heavy lifting is mostly done by the build machine, which builds > packages for a couple of other machines anyway) > * update head; > * reboot to stable; do a few reality checks, then poweroff. > > The oldest & slowest of the laptops happens to be the one I depend on > for day-to-day use, including at work. Thus, while it tends to get > exposed to other environments, the others tend to stay at home, where > there are a rather limited number of "network environments" to which to > be exposed. > > Yesterday, I went out-of-town for work; I brought the normal "work" > laptop, as well as a much newer rescue from an e-waste bin. The old > laptop uses an iwn(4) NIC; the newer one uses iwlwifi(4). > > Yesterday the machines were running: > * stable: stable/15-n283796-0e3c9cbee4ac > * head: main-n286313-dfd2273d2762 > > Today, they were updated to: > * stable: stable/15-n283801-a13800ee46d7 > * head: main-n286328-ea4888e63f6a > > Both laptops were able to use their wireless NICs under stable/15 > yesterday and today at the hotel. > > After booting to head, the iwlwifi NIC worked, but the iwn NIC declined > to associate -- both yesterday's head and today's. If there are tests/ > diagnostics to run, perhaps I could poke around a bit & report...? Please file a bug, and include "ifconfig -v wlan0" and "ifconfig -v wlan0 list sta" to see what's changed. Especially since you're in a hotel, especially since they're likely using something old (eg TKIP encryption, ha!) which I definitely have been fiddling with. I have landed some changes in -HEAD over the last few weeks, so it's possible I broke something there. Are you able to boot an older -HEAD and see if it works? -adrianhome | help
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