[NBLUG/talk] Can't connect to the Internet

Roger House rhouse at sonic.net
Thu Jan 31 08:48:40 PST 2008


Yesterday while using my Ubuntu machine to work on a remote machine via
VPN (using vpnc), my keyboard locked up.  The mouse cursor still worked,
but there seemed to be no way to get back to Ubuntu on my local machine.
In desperation (and perhaps foolishly), I hit the reset button.  Soon
enough Ubuntu was back up and running on my local machine, but I had no
Internet connection, and I have not had it since.

I have a home office network with a cable modem, router, and three
computers, the Ubuntu machine, my wife's Windows machine, and another
Windows machine that I almost never use.  I quickly verified that both
Windows machines have Internet access.  So the problem lies with the
Ubuntu machine or its connection to the router.  The latter does not
seem to be a problem since I can access the router from the Ubuntu
machine with Firefox.  In fact I see a DHCP Clients Table which contains
info on my two Windows machines, but not on the Ubuntu machine.

I'm guessing that by hitting the reset button things were left in some
unpleasant state on the Ubuntu machine which prevents it from connecting
to the Internet.

Any input on what to do will be greatly appreciated.

Roger House




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