SFTP & SCP does not seem to work. – ComicShare - Streaming Reader Review

I tried to connect my NAS via SFTP. It kept notifying "network timeout". I am pretty sure that my server has been properly setup as I can get access to it from any other client except this app. Hope there can be a solution or I can get a refund.
Review by Sliverstrike on ComicShare - Streaming Reader.