All of you should open the following ports as UDP & TCP: 10000, 20001-20004
Those should be enough. Reason why UDP isn't enough is well, we tested on our server and I kept breaking off when the quest started until I opened those ports for TCP as well.
Those should be enough. Reason why UDP isn't enough is well, we tested on our server and I kept breaking off when the quest started until I opened those ports for TCP as well.

