There is only ONE solutio for firewall especially if zone alarm follow this step:
1) Go to Firewall section and advancated
2) Turn off al the settings there (unselect)
3) Go to Program Control section and select option on bit torrent
4) Go to expert rules and create a new rule with this setting
Source any, Destination any, select modify on protocol and set TCP then write in the two space 6881, time any.
Check if the rule is active and set to allowed.
Apply the modify and enjoy!
Remember: If you don't turn of the firewall selection in advancated the light still Yellow and the speed don't go over 10K.