Some ISPs (Internet Service Providers) are actively interfering with p2p activities in order to reduce their bandwidth requirements. This causes uTorrent and other file sharing download speeds to become slow. To avoid this, uTorrent and other clients have introduced an encryption protocol to prevent ISPs from identifying BitTorrent traffic. Go to Options > Preferences > BitTorrent. Set Outgoing under Protocol Encryption to Enable, check "Allow incoming legacy connections". Some ISPs have extremely aggressive throttling methods and for those users it might be necessary to set outgoing to Forced; however this will greatly reduce the number of peers you can connect to. Enable is sufficient for most users.
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