Port Forwarding Issues WZR-HP-G300NH

[reprahnek]

I am attempting to set up my home computer as an ftp server so I may access files when I am on the road.  Trouble is, I cannot get port 21 to open.  ISP doesn't block it at their level.  I am using DynDNS to "get" a static Internet side IP address and associated domain name.  First attached file image shows my port forwarding registration info.

It is showing that the FTP ports have been forwarded.  I've used a couple of tests to see if the port is open – I've used on line port forwarding testers (they all return "connection refused" or "port closed") and telnet to the domain (see 2nd attached image).

I can successfully ping the domain.  Can anyone help me get the port open?  I'm obviously missing a step but cannot figure out what it is.  I have turned off my firewall and Malwarebytes while I'm trying to get this set up, so those can be removed from the equation. 


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