I am trying to get FTP access setup to a central NAS drive on our network. I had this working before but the network hardware was changed, specifically the router. Currently we have Comcast Cable Modem internet service coming in to a Sonicwall NSA 200W router. Our central storage drive NAS device is a Synology DS213+ and is connected to a LAN port on the Sonicwall router. In the past when FTP was working with the NAS drive, I had opened up port 21 on the Comcast modem and enabled FTP on the Synology DS213+ NAS and it worked. The same setup is not working now and everytime I try to connect via FTP, it gives me an error message that it failed to connect to the host. Here are the specifics of what I have done:
1. Created a NAT Policy for FTP using our WAN Interface IP to our FTP Server.
2. Created an address object for our FTP Server using the local IP address of our NAS drive.
3. Created a Firewall access rule from WLAN to LAN for FTP.
I created these things all on the Sonicwall NSA 220W but to my dismay, I still receive the failed to connect to host message.
I am using an FTP utility that asks for the Server Name, Host Name/IP Address, Path, Port, User name and password.
Can somebody please help me understand what I am doing wrong and guide me with the details of how to correctly set this up?