Reinstale network-manager
& amp; modem-manager-gui
com conexão 2G (embora seja lento)
sudo apt-get --reinstall install network-manager
sudo apt-get --reinstall install modem-manager-gui
(Opcional) Em seguida, instale os pacotes necessários para que network-manager
funcione.
sudo apt-get install network-manager dpkg dbus dnsmasq-base iproute iputils-arping isc-dhcp-client libc6 libdbus-1-3 libdbus-glib-1-2 libglib2.0-0 libgudev-1.0-0 libnl-3-200 libnl-genl-3-200 libnl-route-3-200 libnm-glib4 libnm-util2 libpolkit-gobject-1-0 lsb-base udev upstart-job wpasupplicant