I am trying to connect to StrongVPN using PPTP on a Cisco/Linksys E4200. I've tried putting the router behind both a Netgear DG834N and a Netcomm NB6.
On the Netgear I've tried:
- Opening up ports 1723 and 47.
- Allowing WAN pings.
- Setting the E4200 as a DMZ server.
- Disabling DoS protection.
- Completely disabling the firewall.
On the Netcomm I've tried:
- Allowing VPN connections (I think that's all it allows you to do).
On the Linksys I've tried:
- Both stock and DD-WRT firmwares.
- A multitude of different combinations of settings most of which I can't remember.
- Stock settings. Connecting through PPTP. Fairly straight forward.
I either get "PPTP authentication failed" or "Cannot get IP address from PPTP server".
First and foremost, is this even possible? If so, what can I do to get it working?
Thanks in advance.
