I got rid of the problem; I disabled the interface by blocking the responsible kernel module
sudo -s cat > /etc/modprobe.d/blacklist-usb-net-interface blacklist gl620a <Strg>+<D> -- [feisty] network-manager chooses wrong cable network https://bugs.launchpad.net/bugs/97315 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
