Hello,
well i have a USB Modem (USB Mobile Stick).
After 2 or 3-5 Day’s the Modem hangs under 10.8.2 and i have to Restart my Mac Manually with the Powerbutton… this sucks…
So i thought to use a Applescript that disconnects my Modem and reconnect after a delay… every day.
Hope this will help … if someones knows a better solution plz post it here 
so here is my script but that doesn’t work on 10.8.2
tell application "System Events"
tell network preferences
disconnect service "HUAWEIMobile-Modem"
delay 5
connect service "HUAWEIMobile-Modem"
end tell
end tell
hmmm is there a better way or how can i disconnect a PPP connection on 10.8.2 ?
thank you all!
Stefan