I have Windows 7 Home Premium Edition installed on a computer on a network at home, and a laptop I carry around with me. I've wanted to set up a VPN so that I could access my data and devices at home with my laptop while I'm away. I am using Windows 7's built in VPN server and client. I made a new incoming connection, I specified some user credentials, set it to connect through the internet, left the connection specifics to default and allowed access. I've forwarded port 1723 from my router to the server pc. The router is attached to a dynamic ip service, so I've also set it up on dyndns such that I simply specify a url in place of my ip address where possible. I set up my client's connection, connecting to a workplace, new one through the internet, gave the dyndns address that returns my ip, and put in the user credentials, connect. The result is a client that will get as far as "Verifying user name and password..." and hang for a bit before trying again. Eventually it errors out with the following: "The remote connection was not made because the attempted VPN tunnel failed. The VPN server might be unreachable. If this connection is attempting to use an L2TP/IPsec tunnel, the security parameters required for IPsec negotiation might not be configured properly." Well no, I don't think I am using L2TP. After looking around I saw someone saying you should make sure that it's using PPTP, so I went to each connection and sure enough, in the client's connection properties, under the security tab, it was set to automatically find out the VPN protocol, so I set it to PPTP to be safe. I retried, but with no success. I don't know what the problem is. Everything should be fine, I'm using very default settings, there is no reason left for the client and server to not know how to continue from user name and password verification. Can anyone help me? Does anyone know what else I didn't check?