smartFTP (UPnP) and SpeedTouch 510v4 ?

Hi,
I've a problem. I'be a UPnP compatible compatible modem (the SpeedTouch 510v4) but smartFTP seems not to interact with him !
Here is a log (it's in french) of an attempt to connect to ftp.ens-cachan.fr/mirror/Mandrake/9.2/i586

Everything is set to default

   R

Make sure you have UPnP enabled in the router settings.

Routers such as Linksys do not enable UPnP by default.

You will also want to install the latest SmartFTP build.

https://www.smartftp.com/download

If still no luck. Please connect to the SmartFTP public FTP,
and paste the log. Make sure to login in "Active Mode".