Comment 387 for bug 191889

I have this issue, it appears to be caused by Network manager not being able to cope with previously defined debian interface files.

I saw this for the first time when upgrading/installing via net-installer to jaunty. lspci, lshal and nm-tool info attached . my /etc/network/interfaces is just auto eth0 etc defaults as created by deb-installer.

Only weird thing about my network is that I run ipv6 along side .( which on a side note the deb-installer does not support)