Comment 3 for bug 274069

The message in "dhcp error" makes me think about a broken/misconfigured router.
Furthermore there is this line in dmesg.log:

[ 82.885456] sky2 eth0: Link is up at 10 Mbps, half duplex, flow control rx

Can you attach the output of "ifconfig eth0" and the file /etc/dhcp3/dhclient.conf

Can you try the following things and tell if it helps:
- set the router to full duplex
- lower the mtu "sudo ifconfig eth0 mtu 1436" or something lower
- remove the option interface-mtu in /etc/dhcp3/dhclient.conf

Thanks.