I'm not really sure whats going on. I've been able to host other games just fine but this one seems to disagree with my newer router. I have both portforwarded and have upnp enabled. occasionally someone can join, but most that try can't connect. Blockland is allowed through my firewall and ports 28000 - 28030 are open UDP and TCP.
I have been able to host Terraria, Minecraft, Company of Heros with no issues.
Anyone know whats going on here?