I've got three users in Lima Peru connecting to a server behind a firewall in Colorado.
I have no problem connecting here in Colorado.
Depending on the hotel or the office they use in Peru, they may or may not be able to establish the connection. I'm getting a 741 error on the client side. I do see an attempted connection on the server but the connection fails.
I would say it is a piece of hardware or software not related to our equiment and beyond our control.
The wierd twist is that two users were at the same office, one user could connect and the other couldn't.
I did make some firewall changes about a month ago, but I don't think that is the issue. I had removed the IPSec & Key Exchange policies from the firewall. I restored them and it did not make a difference.
I have always kept the PPTP service on the firewall becasue that is the standard for the MS VPN.