Server doesn't want to connect to the wired network

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http://askubuntu.com – I just got home and moved my server from my apartment to my house, and for some reason my Ubuntu server doesn't want to obtain an IP from our router. It is setup for a dynamic IP, and it was working perfectly fine before I moved it. I'm currently getting a "Waiting for network configuration..." during boot before it times out. My /etc/network/interfaces file looks like: auto lo iface lo inet loopback auto eth0 iface eth0 inet dhcp I've also tried setting a static IP but no other computer on my network can hit it. As I've said, I changed nothing to the network config, the only thing that c (HowTos)