I have problems connecting to a VPN server using PPTP.
I currently reside in a university campus, and I am using their internets (very fast!), and I’ve been using remote desktop back to home (using dyndns and router virtual servers to differentiate between servers/pcs). I wanted to switch to PPTP because it is a hassle to move files around with RDP, as I use my own home servers for media storage, so I can stream it up to Uni.
What I did: (loosely, but...