YES, I PORTFORWARDED AND UNBLOCKED THE PORT.
I got a server from Pacnet2012 recently. The port is 50300 and he doesn't port forward, he uses UPnP. Now my router doesn't support UPnP, keep that in mind. For some reason, I can't join the server when I start Blockland.
HOWEVER, I get ping and I can connect like 15 minutes after. Still this is extremely annoying. Please help! And don't give me jackstuff about "Oh, Pacnet's hosting service sucks ass!"