This is probably caused for some incompatibilities between router firmware and linux kernel.
Please provide more information as kernel logs for example, also you can check this from pptp's site. http://pptpclient.sourceforge.net/howto-diagnosis.phtml and from ubuntu wiki. https://help.ubuntu.com/community/VPNClient#PPTP ** Changed in: pptp-linux (Ubuntu) Status: New => Incomplete -- Only a single PPTP-Linux VPN connection allowed https://bugs.launchpad.net/bugs/155945 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
