I'm thinking this must be an authentication problem with the lan. eth0 is successfully started, but "determining IP information for eth0" fails.
What I've got is a Windows network that the windows PC all log onto via a workgroup. When I try the same thing, though, I don't get through.
There are two big reasons why you will get this message: either your network cable is not properly plugged in, your your network configuration is incorrect.
Step 1: Ensure your cable is plugged in!
Step 2: Run the command "ifconfig" and see if you have an IP listed.
Step 3: As root, pull up a command line. Enter the command "setup" and there will be a network config option. Ensure everything is listed correctly there.
If none of these work, you are either experiencing a DHCP problem, or a problem with your router/network setup disallowing your machine. You may have MAC filtering set up.