Hi, I still have the problem in all ICE 4 trains with my notebook. On Mon, Apr 24, 2023 at 06:21:35AM +0200, Uwe Kleine-König wrote: > first of all: thanks for your prompt response. > > On Sun, Apr 23, 2023 at 01:06:45PM +0000, Greenman, Gregory wrote: > > Based on the log, I can understand that it had successfully connected to the AP > > (supplicant management interface state: associating -> completed); > > then there're some DHCP errors and eventually the AP sends a deauth. > > It's hard to say what can cause it, but if you'll be able to reproduce > > the issue, it'd be great if you could collect a trace-cmd dump with > > this command: > > sudo trace-cmd record -e iwlwifi -e mac80211 -e cfg80211 -e iwlwifi_msg > > Done, see https://www.kleine-koenig.org/tmp/20230424-trace.dat for the > resulting trace.dat file. Would a trace.dat from my notebook help? > > It'll be also helpfull if you'll be able to say which specific > > modprobe option fixes the issue. > > The relevant one is > options iwlwifi 11n_disable=1 This is unfortunately an option that you don't want in effect all the time as it reduces Wifi performance at home to 11g/11a typical 54 Mbit/s. Greetings Marc -- ----------------------------------------------------------------------------- Marc Haber | "I don't trust Computers. They | Mailadresse im Header Leimen, Germany | lose things." Winona Ryder | Fon: *49 6224 1600402 Nordisch by Nature | How to make an American Quilt | Fax: *49 6224 1600421
