Após a atualização para 15.10 Wifi para uma rede corporativa (WPA2) não está mais funcionando

Question

Última sexta-feira eu atualizei para o Ubuntu 15.10. Naquele momento eu estava conectado a uma rede corporativa com Wifi. Após a atualização, não está mais funcionando.

Configuração para a conexão wifi:
Segurança: WPA & amp; Empresa WPA2
Autenticação: Protected EAP (PEAP)
Caixa de seleção Nenhum certificado de CA necessário.

versão PEAP. Eu tentei todas as 3 opções: Auto, versão 0 e versão 1.
Autenticação interna: MSCHAPv2

O nome de usuário e a senha são armazenados. Ainda consigo me conectar ao Wi-Fi com meu telefone com as mesmas credenciais.

Isso é o que eu vejo no syslog:

Oct 26 07:27:01 mymachine wpa_supplicant[974]: wlan0: SME: Trying to authenticate with b4:14:89:d1:2f:21 (SSID='CorporateNetwork' freq=2437 MHz)
Oct 26 07:27:01 mymachine kernel: [ 3144.862773] wlan0: authenticate with b4:14:89:d1:2f:21
Oct 26 07:27:01 mymachine kernel: [ 3144.878081] wlan0: direct probe to b4:14:89:d1:2f:21 (try 1/3)
Oct 26 07:27:01 mymachine NetworkManager[828]: <info>  (wlan0): supplicant interface state: disconnected -> authenticating
Oct 26 07:27:01 mymachine kernel: [ 3145.081778] wlan0: direct probe to b4:14:89:d1:2f:21 (try 2/3)
Oct 26 07:27:01 mymachine kernel: [ 3145.285917] wlan0: send auth to b4:14:89:d1:2f:21 (try 3/3)
Oct 26 07:27:01 mymachine wpa_supplicant[974]: wlan0: Trying to associate with b4:14:89:d1:2f:21 (SSID='CorporateNetwork' freq=2437 MHz)
Oct 26 07:27:01 mymachine kernel: [ 3145.304765] wlan0: authenticated
Oct 26 07:27:01 mymachine kernel: [ 3145.305931] wlan0: associate with b4:14:89:d1:2f:21 (try 1/3)
Oct 26 07:27:01 mymachine NetworkManager[828]: <info>  (wlan0): supplicant interface state: authenticating -> associating
Oct 26 07:27:01 mymachine wpa_supplicant[974]: wlan0: Associated with b4:14:89:d1:2f:21
Oct 26 07:27:01 mymachine kernel: [ 3145.340295] wlan0: RX AssocResp from b4:14:89:d1:2f:21 (capab=0x431 status=0 aid=2)
Oct 26 07:27:01 mymachine kernel: [ 3145.340396] wlan0: associated
Oct 26 07:27:01 mymachine wpa_supplicant[974]: wlan0: CTRL-EVENT-REGDOM-CHANGE init=COUNTRY_IE type=COUNTRY alpha2=NL
Oct 26 07:27:01 mymachine kernel: [ 3145.345160] cfg80211: Regulatory domain changed to country: NL
Oct 26 07:27:01 mymachine kernel: [ 3145.345166] cfg80211:  DFS Master region: ETSI
Oct 26 07:27:01 mymachine kernel: [ 3145.345168] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
Oct 26 07:27:01 mymachine kernel: [ 3145.345173] cfg80211:   (2402000 KHz - 2482000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
Oct 26 07:27:01 mymachine kernel: [ 3145.345176] cfg80211:   (5170000 KHz - 5250000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (N/A)
Oct 26 07:27:01 mymachine kernel: [ 3145.345180] cfg80211:   (5250000 KHz - 5330000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (0 s)
Oct 26 07:27:01 mymachine kernel: [ 3145.345183] cfg80211:   (5490000 KHz - 5710000 KHz @ 160000 KHz), (N/A, 2700 mBm), (0 s)
Oct 26 07:27:01 mymachine kernel: [ 3145.345185] cfg80211:   (57000000 KHz - 66000000 KHz @ 2160000 KHz), (N/A, 4000 mBm), (N/A)
Oct 26 07:27:01 mymachine NetworkManager[828]: <info>  (wlan0): supplicant interface state: associating -> associated
Oct 26 07:27:01 mymachine wpa_supplicant[974]: wlan0: CTRL-EVENT-EAP-STARTED EAP authentication started
Oct 26 07:27:01 mymachine kernel: [ 3145.396028] wlan0: Limiting TX power to 2 dBm as advertised by b4:14:89:d1:2f:21
Oct 26 07:27:01 mymachine wpa_supplicant[974]: wlan0: CTRL-EVENT-EAP-PROPOSED-METHOD vendor=0 method=25
Oct 26 07:27:01 mymachine wpa_supplicant[974]: wlan0: CTRL-EVENT-EAP-METHOD EAP vendor 0 method 25 (PEAP) selected
Oct 26 07:27:01 mymachine wpa_supplicant[974]: wlan0: CTRL-EVENT-EAP-PEER-CERT depth=1 subject='/C=US/O=VeriSign, Inc./OU=VeriSign Trust Network/OU=Terms of use at https://www.verisign.com/rpa (c)10/CN=VeriSign Class 3 Secure Server CA - G3' hash=64903546a58058d1e6f1bead1134ede66a6831d231f0df8d4e28535d7a300496
Oct 26 07:27:01 mymachine wpa_supplicant[974]: wlan0: CTRL-EVENT-EAP-PEER-CERT depth=0 subject='...stripped...' hash=abf1a463f10887c64e4858fb5a06c7016426508815ce324b4f7cea269b1fc029
Oct 26 07:27:01 mymachine wpa_supplicant[974]: wlan0: CTRL-EVENT-EAP-PEER-ALT depth=0 DNS:...stripped...
Oct 26 07:27:01 mymachine kernel: [ 3145.498685] wlan0: Limiting TX power to 2 dBm as advertised by b4:14:89:d1:2f:21
Oct 26 07:27:01 mymachine wpa_supplicant[974]: SSL: SSL3 alert: read (remote end reported an error):unknown:unknown
Oct 26 07:27:01 mymachine wpa_supplicant[974]: SSL: SSL3 alert: write (local SSL3 detected an error):fatal:illegal parameter
Oct 26 07:27:01 mymachine wpa_supplicant[974]: OpenSSL: openssl_handshake - SSL_connect error:140940F6:SSL routines:ssl3_read_bytes:unknown alert type
Oct 26 07:27:09 mymachine kernel: [ 3153.136903] [drm:intel_pipe_update_end [i915]] *ERROR* Atomic update failure on pipe B (start=185389 end=185390)
Oct 26 07:27:25 mymachine NetworkManager[828]: <warn>  (wlan0): Activation: (wifi) association took too long
Oct 26 07:27:25 mymachine NetworkManager[828]: <info>  (wlan0): device state change: config -> need-auth (reason 'none') [50 60 0]
Oct 26 07:27:25 mymachine NetworkManager[828]: <warn>  (wlan0): Activation: (wifi) asking for new secrets
Oct 26 07:27:25 mymachine kernel: [ 3169.209119] wlan0: deauthenticating from b4:14:89:d1:2f:21 by local choice (Reason: 3=DEAUTH_LEAVING)
Oct 26 07:27:25 mymachine wpa_supplicant[974]: wlan0: CTRL-EVENT-DISCONNECTED bssid=b4:14:89:d1:2f:21 reason=3 locally_generated=1
Oct 26 07:27:25 mymachine NetworkManager[828]: <warn>  Connection disconnected (reason -3)
Oct 26 07:27:25 mymachine NetworkManager[828]: <info>  (wlan0): supplicant interface state: associated -> disconnected
Oct 26 07:27:25 mymachine NetworkManager[828]: <warn>  Failed to GDBus.Error:fi.w1.wpa_supplicant1.NotConnected: This interface is not connected: disconnect.
Oct 26 07:27:25 mymachine gnome-session[1578]: nm-applet-Message: New secrets for CorporateNetwork/802-1x requested; ask the user

O que posso fazer para poder me conectar novamente?

    

Answer 1

Eu tenho o mesmo problema aqui: O problema é o wpa_supplicant 2.4 como você pode ler aqui: link

Se você fizer um downgrade para 2.3, este problema será resolvido!

    

Answer 2

O problema é que alguns roteadores e / ou pontos de acesso usam WPA2 Enterprise com chave DH fraca e o Network Manager 2.4 não se conecta a essas redes.

Normalmente esse problema está acontecendo no Ubuntu > = 15.10. No momento, uma solução temporária é fazer o downgrade do wpa_supplicant para 2.1 (do Ubuntu 15.04) com as seguintes instruções:

echo "deb http://london.mirrors.linode.com/ubuntu/ vivid main" | sudo tee /etc/apt/sources.list.d/vivid.list
echo -e "Package: *\nPin: release o=Ubuntu,n=vivid\nPin-Priority: -1" | sudo tee cat /etc/apt/preferences.d/vivid
sudo apt-get update
sudo apt-get install wpasupplicant=2.1-0ubuntu7
sudo apt-mark hold wpasupplicant
sudo /etc/init.d/network-manager restart

Referências:

• link
• link