I have the same problem here, i have an Ubuntu client with multiple disks and partitions, and when I try to capture the image i have the same errors, I tried a lot of options without success.
With help From Geroge1421 we discovered that there was a rouge DHCP server connected to the network. It was running from a VM on a regular PC. Network admins were able to locate the port relates to the MAC address of the rouge server.
