Comment 31 for bug 848164

On Wed, 2014-06-04 at 16:57 +0000, Art Edwards wrote:
> I am running 12.10 on Dell inspiron 14-z, and I'm using the novatel
> M760 over virgin mobile. I still have the problem that the system
> doesn't see the device if I remove, and re-insert it. I have tried the
> solution suggested in #27, and, now, the modem does autoconnect.
> However, it has not solved the re-insertion problem. I note the Bug
> Watch updater that there is a new network-manager as of 2014-05-07. Will
> this be back-ported to 12.10?
>

Try this. It was all that helped me get 12.04 to auto-connect.
sudo gedit /etc/init.d/mobile-broadband-connect
Copy/paste the following script in and where you see 8ta (2 places) you
have to enter your service provider. Then save and close gedit.
then
sudo chmod +x /etc/init.d/mobile-broadband-connect
sudo update-rc.d mobile-broadband-connect defaults
Then reboot and lets hope it works for you too.
Good luck
Miles

#!/bin/sh
# Mobile Broadband Startup Service script v0.1 alpha by The Fan Club -
April 2012
# acts as startup service script for nmcli to fire up Mobile Broadband
Connections
# NOTE: Use the name of the Mobile Connection in the Network Manager as
the 'id'
# USAGE: start|stop|status
#
### BEGIN INIT INFO
# Provides: mobile-broadband-connect
# Required-Start: $remote_fs $syslog
# Required-Stop: $remote_fs $syslog
# Should-Start: $network
# Should-Stop: $network
# Default-Start: 3 4 5
# Default-Stop: 0 1 6
# Short-Description: Autoconnect 3G GSM
### END INIT INFO

NAME="mobile-broadband-connect"
DESC="Autoconnect 3G/4G GSM USB modem at startup"

test -x $DAEMON || exit 0

case "$1" in
 start)
    echo "Starting Mobile Broadband Connection."

    while true; do
        # testing...
       LC_ALL=C nmcli -t -f TYPE,STATE dev | grep -q "^gsm:disconnected
$"
       if [ $? -eq 0 ]; then
          break
        else
          # no GSM modem detected yet, sleeping for a second
          sleep 1
        fi
    done

    # Once GSM modem detected, run the script
    nmcli -t con up id 8ta
 ;;
 stop)
    echo "Stopping Mobile Broadband Connection."
    nmcli -t con down id 8ta
    nmcli -t nm wwan off
 ;;
 status)
    # Check to see if the process is running with nmcli
       nmcli -p dev
 ;;

 *)
    echo "Mobile Broadband Startup Service"
    echo $"Usage: $0 {start|stop|status}"
    exit 1
esac
exit 0