While trying to connect with the Windows VPN client, the client hangs at the "Verifying user name and password..." message for about 10 seconds, and then I get the following error message:
Error 619: A connection to the remote computer could not be established, so the port used for this connection was closed.
I can connect successfully using Windows 7 Professional 64-bit, but not with Windows 7 Home Premium 64-bit. Both machines are off the network I'm trying to VPN into and are on the same network. Windows Firewall is disabled on both machines. No antivirus on either machine, clean Windows installs.
I'm using Windows VPN client with the following settings:
- Options tab: Unchecked "Include Windows logon domain"
- Security tab: "Type of VPN" set to PPTP, "Data encryption" set to Optional, CHAP and MS-CHAP v2 checked
- Networking tab: IPv6 disabled, use remote gateway disabled
- Network IP(DHCP)/Subnet: 192.168.10.x 255.255.255.252
- pptpd linux package running on Raspbian Wheezy OS
- Network IP(Static)/Subnet: 192.168.1.x 255.255.255.0
The router is a Linksys WRT160N v3 running DD WRT firmware with GRE 47 enabled and port 1723 forwarded correctly to the server.
What could be the problem and how can I fix it?
EDIT(NEW FINDINGS): When DMZ is enabled, the Windows Home machine can connect to the VPN, when disabled it can't. However, the Windows Professional machine can connect in both scenarios. What's even more frustrating is that even if I forward all ports(1-65535) to the server, the Home machine won't connect. The DMZ must do something that the Home Edition can't live without.