NetworkManager e o problema do KWallet

Question

Depois de migrar do Kubuntu para o Antergos com o KDE, estou com problemas para me conectar ao wi-fi com o WPA2-TLS, portanto, autorização baseada em certificados.

Parece que o NetworkManager está esperando algumas credenciais adicionais (senha para a chave privada?), mas o gerenciador de senhas (kwallet) não as fornece.

Eu também tentei redefinir o kwallet, mas isso também não ajudou.

Existe algum comando que eu possa executar em um terminal para verificar se ele funcionará dessa maneira?

Veja o log abaixo:

09:09:18 as NetworkManager[422]: <info>  [1527577758.7806] device (wlp2s0): Activation: starting connection 'wi-fi-name' (wi-fi-id)
09:09:18 as NetworkManager[422]: <info>  [1527577758.7808] audit: op="connection-activate" uuid="wi-fi-id" name="wi-fi-name" pid=3941 uid=1000 result="success"
09:09:18 as NetworkManager[422]: <info>  [1527577758.7815] device (wlp2s0): state change: disconnected -> prepare (reason 'none', sys-iface-state: 'managed')
09:09:18 as NetworkManager[422]: <info>  [1527577758.7927] device (wlp2s0): set-hw-addr: reset MAC address to mac-addr (preserve)
09:09:18 as kernel: IPv6: ADDRCONF(NETDEV_UP): wlp2s0: link is not ready
09:09:18 as NetworkManager[422]: <info>  [1527577758.8011] device (wlp2s0): state change: prepare -> config (reason 'none', sys-iface-state: 'managed')
09:09:18 as NetworkManager[422]: <info>  [1527577758.8046] device (wlp2s0): Activation: (wifi) access point 'wi-fi-name' has security, but secrets are required.
09:09:18 as NetworkManager[422]: <info>  [1527577758.8046] device (wlp2s0): state change: config -> need-auth (reason 'none', sys-iface-state: 'managed')
09:09:18 as plasmashell[3941]: networkmanager-qt: virtual void NetworkManager::ActiveConnectionPrivate::propertyChanged(const QString&, const QVariant&) Unhandled property "StateFlags"
09:09:18 as kdeinit5[3882]: networkmanager-qt: virtual void NetworkManager::ActiveConnectionPrivate::propertyChanged(const QString&, const QVariant&) Unhandled property "StateFlags"
09:09:18 as kdeinit5[3882]: plasma-nm: Unhandled active connection state change:  1
09:09:18 as kdeinit5[3882]: plasma-nm: virtual NMVariantMapMap SecretAgent::GetSecrets(const NMVariantMapMap&, const QDBusObjectPath&, const QString&, const QStringList&, uint)
09:09:18 as kdeinit5[3882]: plasma-nm: Path: "/org/freedesktop/NetworkManager/Settings/1"
09:09:18 as kdeinit5[3882]: plasma-nm: Setting name: "802-1x"
09:09:18 as kdeinit5[3882]: plasma-nm: Hints: ()
09:09:18 as kdeinit5[3882]: plasma-nm: Flags: 5
09:09:18 as kdeinit5[3882]: plasma-nm: bool SecretAgent::processGetSecrets(SecretsRequest&) const Waiting for the wallet to open
09:09:18 as kdeinit5[3882]: plasma-nm: list of secrets is empty!!!
09:09:18 as NetworkManager[422]: <warn>  [1527577758.8752] device (wlp2s0): No agents were available for this request.
09:09:18 as NetworkManager[422]: <info>  [1527577758.8753] device (wlp2s0): state change: need-auth -> failed (reason 'no-secrets', sys-iface-state: 'managed')
09:09:18 as NetworkManager[422]: <warn>  [1527577758.8758] device (wlp2s0): Activation: failed for connection 'wi-fi-name'
09:09:18 as NetworkManager[422]: <info>  [1527577758.8780] device (wlp2s0): state change: failed -> disconnected (reason 'none', sys-iface-state: 'managed')
09:09:18 as kernel: IPv6: ADDRCONF(NETDEV_UP): wlp2s0: link is not ready
09:09:18 as NetworkManager[422]: <info>  [1527577758.8828] device (wlp2s0): set-hw-addr: set MAC address to other-mac-addr (scanning)
09:09:18 as kernel: IPv6: ADDRCONF(NETDEV_UP): wlp2s0: link is not ready
09:09:18 as plasmashell[3941]: file:///usr/share/plasma/plasmoids/org.kde.plasma.networkmanagement/contents/ui/ConnectionItem.qml:119:19: Unable to assign [undefined] to QString
09:09:19 as plasmashell[3941]: file:///usr/share/plasma/plasmoids/org.kde.plasma.networkmanagement/contents/ui/ConnectionItem.qml:119:19: Unable to assign [undefined] to QString