Not yet with my AC1750 router; any experience you wanna share?

I was trying to use this offline download feature, seting the router to download the torrent file at a folder created by me, but but the download never started. 

Thus, I decided to place the default target folder to the root of my external HD conected to the router and now the feature is working.

hi thanks for sharing.

seems that option 2 is kind of USB sharing function, that is why we still can access the file without internet.