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7

WPA2 wifi refuses to connect after upgrade to 22.04

rated 0 times [ 7] [ 0] / answers: 1 / hits: 6063 / 1 Year ago, wed, february 1, 2023, 2:35:45

I have two Ubuntu laptops next to each other at work at my university. I just upgraded one from 21.10 to 22.04. After upgrade, the WPA2 for my university refuses my password / refuses to connect. I can still connect to unsecured wifi networks.
My settings / authentication / certificates / etc are (a) correct and (b) identical to those of the other laptop, sitting next to it, which connects no problem.

I've updated, rebooted, quadruple-checked, etc.

Here's a similar-sounding very old problem: Can't connect to WPA Enterprise wifi after upgrading from 15.10 to 16.04 but that was more than half a decade ago.

Can anyone tell me the problem or how to troubleshoot? I've gone through the kind of advice here: https://help.ubuntu.com/stable/ubuntu-help/net-wireless-noconnection.html.en

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answered 1 Year ago panshow · Accepted Answer

Here are instructions for a workaround from launchpad. It solved my problem, but it sounds insecure / temporary. It also sounds like a proper patch/bug fix will be issued soon.

(UPDATE: A fix from Ubuntu has been completed and should filter out rapidly now: https://bugs.launchpad.net/ubuntu/+source/wpa/+bug/1958267 In the mean time, the procedure below may tide you over).

1. create openssl.cnf for wpa_supplicant

- sudo cp /etc/ssl/openssl.cnf /etc/wpa_supplicant/

- modify /etc/wpa_supplicant/openssl.cnf by adding the lines below which are marked with a "+".

*** /etc/ssl/openssl.cnf Fri Apr 22 14:54:42 2022

--- /etc/wpa_supplicant/openssl.cnf Fri Apr 22 14:55:22 2022

***************

*** 52,57 ****

--- 52,64 ----



  [openssl_init]

  providers = provider_sect

+ ssl_conf = ssl_sect

+

+ [ssl_sect]

+ system_default = system_default_sect

+

+ [system_default_sect]

+ Options = UnsafeLegacyRenegotiation



  # List of providers to load

2. modify /usr/lib/systemd/system/wpa_supplicant.service

***************

*** 8,13 ****

--- 8,14 ----

  [Service]

  Type=dbus

  BusName=fi.w1.wpa_supplicant1

+ Environment="OPENSSL_CONF=/etc/wpa_supplicant/openssl.cnf"

  ExecStart=/sbin/wpa_supplicant -u -s -O /run/wpa_supplicant

  ExecReload=/bin/kill -HUP $MAINPID

3. restart wpa_supplicant

sudo systemctl daemon-reload

sudo systemctl restart wpa_supplicant.service