Jul  6 03:10:46 R2D2 NetworkManager[966]: <info> Activation (ttyUSB0) starting connection 'Megafon'
Jul  6 03:10:46 R2D2 NetworkManager[966]: <info> (ttyUSB0): device state change: 3 -> 4 (reason 0)
Jul  6 03:10:46 R2D2 NetworkManager[966]: <info> Activation (ttyUSB0) Stage 1 of 5 (Device Prepare) scheduled...
Jul  6 03:10:46 R2D2 NetworkManager[966]: <info> Activation (ttyUSB0) Stage 1 of 5 (Device Prepare) started...
Jul  6 03:10:46 R2D2 NetworkManager[966]: <info> Activation (ttyUSB0) Stage 1 of 5 (Device Prepare) complete.
Jul  6 03:10:47 R2D2 modem-manager[968]: <info>  Modem /org/freedesktop/ModemManager/Modems/0: state changed (registered -> connecting)
Jul  6 03:10:47 R2D2 modem-manager[968]: <info>  Modem /org/freedesktop/ModemManager/Modems/0: state changed (connecting -> connected)
Jul  6 03:10:47 R2D2 NetworkManager[966]: <info> Activation (ttyUSB0) Stage 2 of 5 (Device Configure) scheduled...
Jul  6 03:10:47 R2D2 NetworkManager[966]: <info> Activation (ttyUSB0) Stage 2 of 5 (Device Configure) starting...
Jul  6 03:10:47 R2D2 NetworkManager[966]: <info> (ttyUSB0): device state change: 4 -> 5 (reason 0)
Jul  6 03:10:47 R2D2 NetworkManager[966]: <info> Activation (ttyUSB0) Stage 2 of 5 (Device Configure) successful.
Jul  6 03:10:47 R2D2 NetworkManager[966]: <info> Activation (ttyUSB0) Stage 3 of 5 (IP Configure Start) scheduled.
Jul  6 03:10:47 R2D2 NetworkManager[966]: <info> Activation (ttyUSB0) Stage 2 of 5 (Device Configure) complete.
Jul  6 03:10:47 R2D2 NetworkManager[966]: <info> Activation (ttyUSB0) Stage 3 of 5 (IP Configure Start) started...
Jul  6 03:10:47 R2D2 NetworkManager[966]: <info> (ttyUSB0): device state change: 5 -> 7 (reason 0)
Jul  6 03:10:47 R2D2 NetworkManager[966]: <info> starting PPP connection
Jul  6 03:10:47 R2D2 NetworkManager[966]: <info> pppd started with pid 2409
Jul  6 03:10:47 R2D2 NetworkManager[966]: <info> Activation (ttyUSB0) Stage 3 of 5 (IP Configure Start) complete.
Jul  6 03:10:47 R2D2 pppd[2409]: Plugin /usr/lib/pppd/2.4.5/nm-pppd-plugin.so loaded.
Jul  6 03:10:47 R2D2 pppd[2409]: pppd 2.4.5 started by root, uid 0
Jul  6 03:10:47 R2D2 pppd[2409]: Using interface ppp0
Jul  6 03:10:47 R2D2 pppd[2409]: Connect: ppp0 <--> /dev/ttyUSB0
Jul  6 03:10:47 R2D2 NetworkManager[966]:    SCPlugin-Ifupdown: devices added (path: /sys/devices/virtual/net/ppp0, iface: ppp0)
Jul  6 03:10:47 R2D2 NetworkManager[966]:    SCPlugin-Ifupdown: device added (path: /sys/devices/virtual/net/ppp0, iface: ppp0): no ifupdown configuration found.
Jul  6 03:10:47 R2D2 pppd[2409]: CHAP authentication succeeded
Jul  6 03:10:47 R2D2 pppd[2409]: CHAP authentication succeeded
Jul  6 03:10:47 R2D2 kernel: [  332.282282] PPP BSD Compression module registered
Jul  6 03:10:47 R2D2 kernel: [  332.343323] PPP Deflate Compression module registered
Jul  6 03:10:55 R2D2 pppd[2409]: Modem hangup
Jul  6 03:10:55 R2D2 pppd[2409]: Connection terminated.
Jul  6 03:10:55 R2D2 NetworkManager[966]: <info> (ttyUSB0): device state change: 7 -> 9 (reason 5)
Jul  6 03:10:55 R2D2 NetworkManager[966]: <info> Marking connection 'Megafon' invalid.
Jul  6 03:10:55 R2D2 NetworkManager[966]: <warn> Activation (ttyUSB0) failed.
Jul  6 03:10:55 R2D2 modem-manager[968]: <info>  (ttyUSB0) closing serial port...
Jul  6 03:10:55 R2D2 NetworkManager[966]: <info> (ttyUSB0): device state change: 9 -> 3 (reason 0)
Jul  6 03:10:55 R2D2 NetworkManager[966]: <info> (ttyUSB0): deactivating device (reason: 0).
Jul  6 03:10:55 R2D2 modem-manager[968]: <info>  (ttyUSB0) serial port closed
Jul  6 03:10:55 R2D2 modem-manager[968]: <info>  Modem /org/freedesktop/ModemManager/Modems/0: state changed (connected -> disconnecting)
Jul  6 03:10:55 R2D2 modem-manager[968]: <info>  Modem /org/freedesktop/ModemManager/Modems/0: state changed (disconnecting -> connected)
Jul  6 03:10:56 R2D2 NetworkManager[966]:    SCPlugin-Ifupdown: devices removed (path: /sys/devices/virtual/net/ppp0, iface: ppp0)
Jul  6 03:10:56 R2D2 NetworkManager[966]: <info> disconnect failed: (32) The serial port is not open.
Jul  6 03:10:57 R2D2 pppd[2409]: Exit.