FTP server unavailable from local network?

[Gabis1207]

Hello techies!
I am running an FTP server for myself, my family, and my friends to store files on. I set it up about two weeks ago, and it's been running pretty smoothly since then, except for one problem. When I go to connect to the server, I get an error message stating "Cannot read remote folder "/"." ONLY when I attempt to connect from the same AP that the file server is using.

For example, on my smartphone, I can access the server through 3G, 4G, and my neighbor's wifi, but not through my own. On my home network, I made several connection attempts using the internal IP, the external IP, and the no-ip domain name that I have registered, all to no avail. The external IP and domain name both work when connecting from somewhere else (obviously not the internal IP. =P), and I'm getting frustrated.

Is there a solution that one of you can suggest, is there more information that you might need to come to a solution, or am I pretty much just crap-outta-luck?

-Gabis

 

[carnageX]

What FTP Server software are you using, first of all?

 

[Gabis1207]

Filezilla server, version 0.9.48

 

[patonb]

Use the internal address.. 192.168...

Edit, I use to use filezilla up till I got my NAS, AND that's how I did it.

 

[Gabis1207]

Done so already. No dice.

...
On my home network, I made several connection attempts using the internal IP, the external IP, and the no-ip domain name that I have registered, all to no avail. The external IP and domain name both work when connecting from somewhere else
...

 

[patonb]

Sorry, I read it twice too looking mainly for the numbers...
I used internal on mine, how are you accessing it?

 

[Gabis1207]

From my smartphone (andriod FTP client) and laptop (FileZIlla client) over wifi, and sometimes over ethernet from my laptop.
Ethernet fails every time, wifi only fails when I'm connecting from the same AP as the server is on.

 

[iFargle]

Are they all remoting to the same directory? Any error messages or statuses other than just "Cannot read remote folder "/"."?
View the logs on the server and see if you see anything out of the ordinary after an internal connection.

 

[patonb]

Hmm, I fired up my server, 0.9.43, and can't find any odd settings on mine.

Could it be your router setting?

 

[Gabis1207]

Server log:

(000022)1/21/2015 18:35:34 PM - (not logged in) (98.243.97.135)> Connected on port 21, sending welcome message...
(000022)1/21/2015 18:35:34 PM - (not logged in) (98.243.97.135)> USER gabis
(000022)1/21/2015 18:35:34 PM - (not logged in) (98.243.97.135)> 331 Password required for gabis
(000022)1/21/2015 18:35:34 PM - (not logged in) (98.243.97.135)> PASS ************************
(000022)1/21/2015 18:35:34 PM - gabis (98.243.97.135)> 230 Logged on
(000022)1/21/2015 18:35:34 PM - gabis (98.243.97.135)> FEAT
(000022)1/21/2015 18:35:34 PM - gabis (98.243.97.135)> OPTS UTF8 ON
(000022)1/21/2015 18:35:34 PM - gabis (98.243.97.135)> 202 UTF8 mode is always enabled. No need to send this command.
(000022)1/21/2015 18:35:34 PM - gabis (98.243.97.135)> PWD
(000022)1/21/2015 18:35:34 PM - gabis (98.243.97.135)> 257 "/" is current directory.
(000022)1/21/2015 18:35:34 PM - gabis (98.243.97.135)> PASV
(000022)1/21/2015 18:35:34 PM - gabis (98.243.97.135)> 227 Entering Passive Mode (192,168,0,100,219,249)
(000022)1/21/2015 18:35:34 PM - gabis (98.243.97.135)> LIST -A
(000022)1/21/2015 18:35:44 PM - gabis (98.243.97.135)> 425 Can't open data connection for transfer of "/"
(000022)1/21/2015 18:37:45 PM - gabis (98.243.97.135)> 421 Connection timed out.
(000022)1/21/2015 18:37:45 PM - gabis (98.243.97.135)> disconnected.

Yes, Fargle, they rout to the same directory.
I have no idea if it's my router, nor how I could check.