I have set up a VPN server on a client's Window 7 Professional file sharing computer. One of the staff wishes to connect via WAN from home - I have attempted to configure their Windows 7 machine to connect however when I try to initiate a connection I get a 'connection failed' error (surprisingly rapidly). Interestingly, if I change the password on the connection computer to one that I know is incorrect, the computer responds as you would expect, i.e. incorrect username or password so at the very least, some form of username/password validation is going on. I set up a connection on another machine using the same details and it connected perfectly 1st time so it's safe to assume that the issue is with the client machine not the server.