[Solved] Can't connect to VPN server AC66U

I've been trying to set up a VPN so I can access my home network from the internet, but am having problems to connect any client to it.

I have PPTP VPN server turned on, set up a user/password and everything works good if I'm within the network. But if I connect from a external network I just won't be able to, which is odd because I swear could do it earlier this morning when I started the whole process.

After several attempts I'm just giving up on ddns and setting my public ip on the VPN...

[Solved] Can't connect to VPN server AC66U