First off all hi to everyone.I have a question.Why KTorrent stalled in so many trackers?Can i do something for this because all KDE desktops have KTorrent as a default torrent client and i want to use this client.Thanks in advance.

If you get a lot of connections to the host broken then do not to use KIO (checks logs): Configure Ktorrent->Advanced and check the box "Do not use KIO for tracker announces".