Your ISP may be firewalling your connection on most ports...if so,you have to find a port that's not firewalled. There are tools online to do so:
"Shields Up"
https://www.grc.com/x/ne.dll?bh0bkyd2
Your DSL modem may have a mini-router built into it that needs to be configured.
Btw, you should not be completely unfirewalled and connected to the internet. Your computer will be hit by nasties...probably auto-infected in less than 1 hour. BitTornado only needs a small range of ports forwarded, the rest need to be firewalled...unless you need them forwarded for other reasons.