I have a self hosted FTP site for my clients. The issue I am having is that connecting to the FTP always requires 2-3 attempts but then it will always connect on the 2nd or 3rd try.

The failure is always a "control connection timed out" error.

Accessing the web server on the same device is always instantaneous and quick if that means anything.

It is a simple OS X server with an Apple airport router. I have a static IP as well.

Any suggestions on troubleshooting this?

8/27/2013 3:19:01 PM

get real hosting n00b

8/27/2013 6:41:29 PM

Is this some kind of port trigger issue? First hit the port is blocked and then UPNP opens it up the second time? *shrug*

8/27/2013 7:29:57 PM

^could be that. On mine, the server allows me to specify which ports to use for the control connection so it can advertise them to the client. That way I could open the range (only 10 ports or so). I don't know if triggering would work as well, but maybe I could play with it.

I would start with your firewall though. That's why it works properly using devices inside the network.

8/28/2013 6:31:20 AM

Switch to SFTP. Don't know your business / user requirements, but I would switch to SFTP if at all possible. See if issue persists.

8/28/2013 8:23:06 AM

Just as an update, Perlith is right that SFTP works without issue.

I think this is a port issue.

I think this would be resolved with a router other than the Apple one but I think Grandmaster is right about what is going on in the connection process.

[Edited on August 29, 2013 at 1:24 AM. Reason : edit]

8/29/2013 1:24:03 AM