Thanks for pointing me in the right direction.
I can confirm that I needed to set my Windows Server 2008 FTP Server to Passive Mode.
If anyone is looking to do the same, here's the resources I used:
https://technet.microsoft.com/en-us/library/dd421710%28v=ws.10%29.aspx
How To Enable Passive...
Hi, I'm new here, hope I can get some help.
I have Hikvision DS-2CD2032-I cameras and am having trouble configuring FTP with my server.
I get the error message popup, "Failed to connect the test server" when clicking the Test button.
I am able to connect to my FTP server with FileZilla just...