I have a similar problem, somebody asked about the dns: in my case it resets to the router's ip (10.0.0.2) some seconds after the conection is started, if I do a poff -a; pon dsl-provider it works again for some seconds.
I should add that I'm currently using Kubunto Breezy and have no problems, the problems are under Kubuntu Dapper (I don't know about Ubuntu). -- Internet connection (PPPoE) doesn't work in Kubuntu https://launchpad.net/bugs/14890 -- kubuntu-bugs mailing list kubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/kubuntu-bugs