this also happens to me on PPTP. I have to kill kvpnc and pptpd
$ apt-cache show kvpnc Package: kvpnc Priority: optional Section: universe/net Installed-Size: 5624 Maintainer: Ubuntu MOTU Developers <email address hidden> Original-Maintainer: Debian KDE Extras Team <email address hidden> Architecture: amd64 Version: 0.9.0-1 (Jaunty)
this also happens to me on PPTP.
I have to kill kvpnc and pptpd
$ apt-cache show kvpnc Maintainer: Debian KDE Extras Team <email address hidden>
Package: kvpnc
Priority: optional
Section: universe/net
Installed-Size: 5624
Maintainer: Ubuntu MOTU Developers <email address hidden>
Original-
Architecture: amd64
Version: 0.9.0-1 (Jaunty)