Sorry if I wasn't clear with my first answer, and yeah don't open 6969. Let me see if I can clear up some more stuff. Like I said before, sometimes the trackers are busy or there just plain "bad" trackers, you can't do anything about that. However, another thing you could change is to use a different Bittorent client. I suggest using the official client where you can download from here. I belive that using the official client will help with the tracker problem. If the problem still exists, post again and I'll try to help.