Why won't the WVC80N write a motion-sensed video file?

Question

I'm using a WVC80N camera and a WRT1900AC Wireless Router.  My HP MediaSmart server, WHS 2003, is connected to the router via cable.  I can have the camera ALWAYS RECORD to the server because the setup for that asks directly where to put the file.  However, I want the camera to use motion sensing but that only goes to an FTP server.  I input the local IP of my HP server and a port I have cleared on the router, the computer and the server firewalls.  NO file is written even though the camera log says motion was detected as shown below:
(07/16/2014 19:37:20 FTP: Error during the connection or timeout.
07/16/2014 19:37:15 Alert: Detected motion.).
The first line is absolutely NO use:  What "Error"?  Yes, the user ID and password for the server are entered (several times just to make sure).
I have done this on BOTH the direct camera input and the camera utility program.  By the way, why does the camera utility program constantly CHANGE the frequency to Once per Day EVERY time the utility is opened?  Doesn't / Can't it save Every Day to a file?  I have also RESET the camera and reinstalled the camera using the CD installation program so don't bother suggesting I do that AGAIN!  I can view the video from this computer using the camera utility or from my cellphone or iPad/iPod using any of several applications and the DNS tracker.  So I know the camer is working, I just can't get the video file stored onto my server.  Do I need to install something like FileZilla on the server box to make it a REAL ftp?
I would like for this to work so any help would be appreciated.
   Turner

Answer 1

Thank you for the suggesstion.  I had the system working with an AC1900 router but had to replace the AC1900 with the WRT1900AC because the AC1900 kept getting hot and shutting off the wireless network.  I would think if it would work with one router, it should work with another.  I may put the AC1900 back on and check settings to see what I didn't get right.  I need to reset the AC1900 to remove my userid and password(s) anyway.
I have a source for checking your suggestion on WAN enabling the MediaSmart server.  I can check if that is possible.
Why isn't motion-sensed recording available like always-recording?  I don't understand why the two have to be so different.
Thanks again,
    Turner