HikVision DS-2CD2032-I Built-In FTP: Anybody got it working?

I'm striking out with offloading motion detection from BI to my HikVision cams, so I am trying to use their native FTP to get the alert images.

But Hik does not seem to accept domain names in it's FTP setup (e.g. "PeteCress.DynDNS.org")... only numeric IP addrs - which is a deal breaker for me.

But even testing with a numeric IP - where Hik says the test FTP was "Succssful", I'm not getting any motion-triggered images.

Configuration | Advanced Configuration | Events | Linkage Method | Normal Linkage = "Upload to FTP"

Configuration | Advanced Configuration | Events | Linkage Method | Normal Linkage = "Upload to FTP"

Two other parms have to be set:

Configuration | Advanced Configuration | Storage | Event-Triggered | Enable Event-Triggered Snapshot =True,  Interval = 1000