Ok, so I have been able to host servers ever since I first got Blockland, until now. For some reason when I enter all the information needed under internet protocol, it says something like "A network is already using the IP address. Would you like to go back and change the address?" Then you have a choice of yes or no. If you click yes it just goes back to the protocol menu. If you hit no it continues on like it is supposed to. When this first happened I thought it was fine and was just being stupid. When I tried to host a server however, it was dead. I cannot seem to find any way of fixing this problem.
Help :D