As of today I can say I've successfully bypassed my ISPs bittorrent throttling attempts, I did this by doing a few things: 1. I changed my BT port from 6881, which is in the BT port range (6881-6999) to 4472, which I randomly selected. 2. I turned on encryption, so my ISP can't pick out my torrent packets 3. I compleatelly changed the way BT operates (they way it connects to peers/seeds, etc.) I've noticed a major speed increase, and before when I used BT my internet would stop working, now it's fine:D To see if your ISP limits BT bandwidth here's a list of bad ISPs And here's how you can get past you ISP, but the guide is designed for Azureus but I'm sure you could adapt it for other Torrent clients. The Link!