No problems with torrents... I suggest you to renew your ip address and to change the port configuration of your client (preferably randomize this every time you start the client).

this is easy to do with utorrent or transmission. (Very good clients both)

Some torrent swarms block IPs if performance isn't good enough. Renwing your IP gives you a fresh start. Randomizing your port gives you a "just in case" preventive measure against service blocking.

Cheers!