FTP/Ports/Connection

Using Filezilla... all ports mentioned are open and directed to the NAS in my Linksys Router.
So i tried to use SFTP (port 8022) - FAILED.
So i setup FTPS (port 990) and FTPES (port 2121), tried both - FAILED (This one was weird because it actually connected but it seems like the server kicked me off. the log shows me as "Denied"). To add, i did create the Certificate.
Tried changing the port to 31 for external on my router, routing to internal 21 - FAILED
Tried changing all ports to 31 on both NAS and router - FAILED.
Seems like the only thing that works is port 21!
I have the data port 21 open also.
And yes, my router works fine because i changed my webport to another port from 80 and that works perfectly fine.
So i tried to use SFTP (port 8022) - FAILED.
So i setup FTPS (port 990) and FTPES (port 2121), tried both - FAILED (This one was weird because it actually connected but it seems like the server kicked me off. the log shows me as "Denied"). To add, i did create the Certificate.
Tried changing the port to 31 for external on my router, routing to internal 21 - FAILED
Tried changing all ports to 31 on both NAS and router - FAILED.
Seems like the only thing that works is port 21!
I have the data port 21 open also.
And yes, my router works fine because i changed my webport to another port from 80 and that works perfectly fine.