The certificate authority is missing. You may want to add it to the
configuration in NetworkManager to point to a CA certificate that can be
provided to you by your network administrator:
Jan 24 21:28:21 ubuntu wpa_supplicant[3569]: wlan0: CTRL-EVENT-EAP-METHOD EAP
vendor 0 method 25 (PEAP) selected
Jan 24 21:28:21 ubuntu wpa_supplicant[3569]: TLS: Certificate verification
failed, error 20 (unable to get local issuer certificate) depth 1 for
'/C=SK/L=Bratislava/O=Comenius University/CN=WWW Servers Certification
Authority/emailAddress=xxxxxxxxx'
Jan 24 21:28:21 ubuntu wpa_supplicant[3569]: wlan0:
CTRL-EVENT-EAP-TLS-CERT-ERROR reason=1 depth=1
subject='/C=SK/L=Bratislava/O=Comenius University/CN=WWW Servers Certification
Authority/emailAddress=xxxxxxxx' err='unable to get local issuer certificate'
Jan 24 21:28:21 ubuntu wpa_supplicant[3569]: SSL: SSL3 alert: write (local SSL3
detected an error):fatal:unknown CA
Jan 24 21:28:21 ubuntu wpa_supplicant[3569]: OpenSSL: openssl_handshake -
SSL_connect error:14090086:SSL routines:SSL3_GET_SERVER_CERTIFICATE:certificate
verify failed
Jan 24 21:28:22 ubuntu wpa_supplicant[3569]: wlan0: CTRL-EVENT-EAP-FAILURE EAP
authentication failed
I've noticed this too happening with self-signed certificates in
universities. The alternative is to edit the connection file in
/etc/NetworkManager/system-connections to remove "system-ca-certs=true".
** Changed in: network-manager (Ubuntu)
Status: Confirmed => Invalid
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https://bugs.launchpad.net/bugs/1104476
Title:
Network manager cannot connect to Eduroam (worldwide WiFi network for
university students)
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https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1104476/+subscriptions
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