Sometimes my modem seems to hang or has lost its connection somehow. And after a restart it gets a connection. So I made a little script to do this automattically for me from now on. It has been build for a Zyxel 650 HW31 but can easily be adjusted to other modems that can talk telnet. Make this thing executable, and run it every hour or so by cron and it should do the trick for you to reset your modem when there was no connection possible with google.com. It should probably test for more than one address .... but I do know some people who say "internet is broken" when they can't reach google. read more...