Issues with setting up a server

Basically, I am using this service called put.io. For anyone that is unaware, it fetches torrents for you and saves them on your own cloud storage with them. I then want to link this with my Plex account. I figured the best way to do this was to mount the ftp for put.io on my laptop and use that folder as a folder for Plex. I keep trying to mount it and it works for a solid minute and then it says server connections interrupted. Why does this keep happening? I am looking for hopefully a solution to this or another way to integrate put.io and Plex without the put.io app since I want the files to be directly in my library. Thanks.