Those messages aren't related in any way to your problem. Everybody gets them, as the stuff they are meant to do won't work with the hub software twofo runs.
And try what yoinkster said Also, try 2.tankafett.nu:1420 which is a real hub address that isn't twofo
What firewall is it you have, as it still sounds like a firewall issue where it has locked down the program to me
Still the same message (target machine actively refused etc.) My firewall is zonealarm, and I've allowed DC but it's turned off at the minute anyway. The windows firewall's definitely off too. I take it we're leaving stunnel out of this for the time being until DC does what it's meant to?