Go to Options>Preferences>Network
-> Under ‘Port used for incomming connections’, enter any port number. It is best to use a port number above 10000. I use 45682.
->Randomize port each time utorrent starts: UNCHECKED. I leave this unchecked because I have a router. If you do not have a router or a firewall, and want extra security,check this option.
-> Enable UPnP port mapping (Windows Xp or later only): UNCHECKED. I leave this unchecked because I have experienced it...