I'm trying to connect to my FTP server from my external IP address on Comcast Business.
On the gateway I've set up port-forwarding on ports 20-21 to my server. Additionally I've forwarded ports 7000-8000 to my server for use in passive mode.
In my FileZilla Server application I've set up passive mode to use my static IP and to use the subset of ports listed above.
Unfortunately, it doesn't work through the external static IP for some reason, but I can internally.
When I try to connect through static IP, the FileZila monitor says
Connected, sending welcome message.... 220 FileZillaServer version 0.9.37 beta could not send reply, disconnected
My firewall doesn't register any block events and windows firewall is disabled. What am I doing wrong or missing?