Oct 18 06:31:15 oS112-factory NetworkManager: <info>  Found new GSM modem device 'ttyUSB2' (driver: 'option1').
Oct 18 06:31:15 oS112-factory NetworkManager: <info>  (ttyUSB2): exported as /org/freedesktop/ModemManager/Modems/0
Oct 18 06:31:20 oS112-factory NetworkManager: <info>  (ttyUSB2): device state change: 1 -> 2 (reason 2)
Oct 18 06:31:20 oS112-factory NetworkManager: <info>  (ttyUSB2): deactivating device (reason: 2).
Oct 18 06:31:20 oS112-factory NetworkManager: nm_system_device_flush_ip4_routes_with_iface: assertion `iface_idx >= 0' failed
Oct 18 06:31:20 oS112-factory NetworkManager: nm_system_device_flush_ip4_addresses_with_iface: assertion `iface_idx >= 0' failed
Oct 18 06:31:20 oS112-factory NetworkManager: <info>  (ttyUSB2): device state change: 2 -> 3 (reason 0)