have you tried a different torrent client portis3?
aDownloader might not work well with some private trackers. Also, depending on how it handles scrape errors, it might not get peers updates properly if it's heavily reliant on scrapes rather than just doing tracker updates. Vuze in it's default settings sends torrents to a 'queued' but seeding state after some time getting scrape errors, and it won't do a tracker update to get peers, it just keeps on scraping.