You posted this question 4 days ago & Lord of the Rings replied here (click on blue link): How to Force UltraPeer (Better searches whether using Pro or Basic)

Did you add the port number & IP addresses that he suggested (within the 'Hostiles List' link) to your banned list?

Sorry if LOTR's reply didn't show up for you - it's possible that there was a forum glitch & the reply may not have shown up immediately.