I have added this two lines to rc.local:
ifdown ra0 ifup ra0
and by doing just that the connection works after boot and doesn't fail anymore (and knetworkmanager doesn't break it).
I have added this two lines to rc.local:
ifdown ra0
ifup ra0
and by doing just that the connection works after boot and doesn't fail anymore (and knetworkmanager doesn't break it).