Iselwood

Hello everyone! Me and my friend we are trying to play online through t3a. We downloaded and installed the game, exactly the same way. We are unable to connect. Everything is okay we enter the same lobby, but are connections always fail everytime we try. Please, someone inform me of all the parameters we must check. We doublechecked almost everything, we disable firewalls. Please, give us information of every step and any parameter. What to do with our firewalls, what to do with our options.ini file, what to do with our port numbers, and whatever else is needed. The only extra thing is that he runs windows 8, so i dont know if that makes any difference. Please enlight us. its a shame not to be able to play this great game again