The old version of the plugin package can let you set up a connection without a PPP connection type. This is fixed in the newer version - there is always a default, so you can't ever create new connections that are unset. As gconf is a per-user system, I'm not sure if there is a good way of having, for example, the post-install script of the package set the ppp-connection-type for connections that don't have one already?
What version are you running, and if not the most recent package, are you able to test (links to edgy/feisty packages are listed earlier in this bug report) and see if the behaviour remains?
Thank you for your debugging!
The old version of the plugin package can let you set up a connection without a PPP connection type. This is fixed in the newer version - there is always a default, so you can't ever create new connections that are unset. As gconf is a per-user system, I'm not sure if there is a good way of having, for example, the post-install script of the package set the ppp-connection-type for connections that don't have one already?
What version are you running, and if not the most recent package, are you able to test (links to edgy/feisty packages are listed earlier in this bug report) and see if the behaviour remains?