I tried to connect to my workplace using a VPN that I set up, but I cannot connect. It says that the VPN reports that I cannot connect on port 80 with an error code of 807. Then the next that I tried to connect, it said that I could not connect on port 443, with the same error code of 807. It said on both tries that the server was not responding to my request to connect with the VPN. This problem has not occurred using Windows Vista Ultimate 64 bit, but only happens when I try it using Windows 7 Ultimate 64 bit.

Did you create a SSTP VPN on Windows 7? Usually, only SSTP VPN would use HTTPS (TCP port 443). PPTP VPN would use TCP port 1723 and GRE (47)protocol. L2TP over IPSec use following protocol,- Internet Key Exchange (IKE), use UDP 500.- IPSec Network Address Translation (NAT-T) use UDP 4500.-L2TP traffic, use UDP 1701.