I do have the same problem with the nforce 4 ethernet and a realtek one i used for testing too. The marvell one seems to be working tho. i posted all the details here:
http://ubuntuforums.org/showthread.php?p=2302180#post2302180 -- Feisty network-manager 0.6.4-6ubuntu3 update killed NIC https://launchpad.net/bugs/92085 -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
