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I use my workstation as Wifi AP. I upgraded to 22.04. Since then my laptop (also 22.04) does not connect to it anymore. On the laptop (client) I get errors like

localhost kernel: [16342.804006] wlp3s0: deauthenticated from 50:eb:71:10:c1:56 (Reason: 15=4WAY_HANDSHAKE_TIMEOUT)

Oddly enough my Andriod phone still connects fine to the AP after the upgrade.

The AP uses wpa-psk and was set up as in https://gist.github.com/narate/d3f001c97e1c981a59f94cd76f041140

"nmcli device wifi list" on the laptop shows the AP broadcast as using both WPA2 and WPA3. Perhaps can I try to disable WPA3 ?

waltinator
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cosine
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1 Answers1

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I'm not an 'admin', so I can't provide technical feedback. I do not even understand what the output you quoted means. :)

But since I had the same problem (I believe) might still be able to help:

Apparently in 22.04 there's a bug causing certain wifi connection to fail or slow down (for me, my mobile phone hotspot still worked, but my University's wifi did not).

Luckily, that "bug report page" also links a comment with a really simple work-around! In a nutshell, that report explains which lines to insert into a certain file. It misses, though, to mention that the "wpa" needs to be restarted afterwards (or how that's done). I'll thus explain both here:

  1. Open the file "/usr/lib/ssl/openssl.cnf" as an admin.
  2. Make sure all the following lines appear in that file. (For me, the first was already present)

openssl_conf = openssl_init

[openssl_init] ssl_conf = ssl_sect

[ssl_sect] system_default = system_default_sect

[system_default_sect] Options = UnsafeLegacyRenegotiation

  1. Restart wpa by first hitting sudo pkill wpa_supplicant, then wpa_supplicant

Hope that works for you too!

Prof.Chaos
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    Thank you for the tips. I have come across that being mentioned and I applied those patches. So far no luck however, will try again. – cosine May 19 '22 at 07:48
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    A patch was released today for wpa_supplicant. We'll see... – cosine May 19 '22 at 07:50
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    I also have networking issues after upgrading from 21.04 to 22.04. Not only with WiFi but also with Ethernet and USB-Tethering. /usr/lib/ssl/openssl.cnf is a link to /etc/ssl/openssl.cnf here. All settings but the last were there. I added Options = ..., killed wpa_supplicant, it needs arguments/options to be started, which I don't know. I restarted Kubuntu. To no avail. Still not a single WiFi connection here. If this is already known since May is there really no official solution yet? How to apply a patch if there is no Internet connection? – Gerold Broser Sep 09 '22 at 21:52