I have a QNAP NAS device and supposedly other people are doing this with my same configuration, that is behind a Cable ISP. I have configured everything to allow PPTP and have 1723 open everywhere but when I try to connect to my NAS device in my home I time out.
I definitely have 1723 open and PPTP enabled on this router.. My NAS device (192.168.1.3) is hardwired in to a DD-WRT (192.168.1.2) router configured as a wireless repeater to my main TomatoUSB router (192.168.1.1). 1723 is open on both routers and PPTP is enabled on both. I can connect to it locally with my Iphone so I know PPTP is working.. The NAS Device does some UPNP tests actually checking with an outside connection and it's a go but I can't connect from a number if remote sites using a number of methods.. All of the diagnostics on the QNAP itself say everything is a go. My service provider is Cox cable.. Any help would be appreciated. I have a routable IP I am pointing to which my NAS device acquired based on it's tests.