Comment 4 for bug 229392

I think I am seeing a related behavior on my machine, and started to query the kubuntu forums on network support
( http://kubuntuforums.net/forums/index.php?topic=3105955.0 ), but maybe it's better placed here.

If you guide me a little bit (linux newbie, but computer-experienced), I'm willing to provide all information I can possibly
retrieve from the system. Note that I have no network access from kubuntu, so I cannot install packages on the fly.

SYSTEM HARDWARE
+ motherboard: MSI-7222 (VIA chipset), 2GB RAM installed (1GB recognized by Phoenix BIOS, seems a known bug)
+ ethernet adapter: RealTek RTL8139/810x Family Fast Ethernet NIC (as per windows), running fine in winXP.
+ graphics adapter: ATI Radeon HD 3450 (AGP 8x)
+ no other PCI devices

SYSTEM SOFTWARE
+ WinXP running on one partition (with network access through dsl cable router), dual-boot system
+ Installed kubuntu 9.04 from iso image (-i386 live CD), downloaded 3 days ago. "Ubuntu 9.04, kernel 2.6.28-11-generic"
+ Removed network-manager-kde, trafficked /etc/network/interfaces, following advice in various forums
+ nothing else installed, since no network access

SYMPTOMS
+ no network access through wired connection to cable router
+ various configurations in /etc/network/interfaces (dhcp, static) gave no result
+ trying to add router manually via route add ... was impossible [SIOADDRT: no such device]

VAR/LOG/SYSLOG
+ shows I'm running realtek8139too
+ shows WATCHDOG NETDEV warning and trace
+ is attached (I can access winXP boot partition from kubuntu and save files there for uploading)

APPORT-COLLECT
+ failed with the message Please install the package "python-launchpadlib".

So, if there is anyone out there willing to tackle this problem together with me, I'm game...