How I setup VPN if I don't use Contivity, or if I'm using PTPP?
It may be possible to connect to the VPN server using PPTP. PPTP is less secure than IPSEC (used by the Contivity client), so you should try to use the Contivity VPN client where possible. See our alternative VPN guide located at: http://www.rose-hulman.edu/TSC/services/internet_connections/vpn/alternate_vpn_connection/