On Sun, Oct 04, 2026 at 04:47:23PM +0200, Thomas Tanghus wrote: > Hi, new here > > Until half a year ago I hadn't used debian for over 20 years. I was using > Kubuntu in the mean time. Then I installed Trixie, and today I upgraded to > testing to get a newer KDE Plasma. > It took a couple of hours on my old laptop. > The system seems to be running fine, but the wifi connection is *very* flaky. > It connects and disconnects constantly. > I know next to nothing about networking, so I have no idea how to find out > what's why.
[...] There are many factors involved. To illustrate (and no, I don't think it's your problem, I just want to encourage you to keep your scope wide: once I upgraded my laptop, from a Thinkpad X 240 to an X 260 (same Debian version, I think it was Bookworm). After that, the (home) WiFi was unusable, disconnecting randomly, but typically in the 1 to 5 minutes range. After some digging I found out that the new laptop connected in the 5.5GHz band, whereas the old one (lacking the more modern hardware) had to pick the 2.4 GHz one. Long story short, in my case the walls made the 5.5 GHz band unreliable. Forcing the connection to 2.4 GHz fixed the problem. Cheers -- t
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