I have a laptop that I use at work and I created a VPN connection to access my network drives, but it doesn't work, I get error 721 Remote not responding. Everyone else can connect using VPN and I can connect when I am at home using my desktop computer. Why do I get this error on the laptop? I tried so many things, I recreated the connection, I made sure that I have the PPTP VPN in the Networking Tab, I added UDP port 500 in the firewall exceptions. I have Windows XP Professional SP2. Can you please help? Thanks.