Nigey

Hi there guys, My first post, so excuse me if I'm in the wrong area. I wanted to make my own level on a localhost, however it's not letting me. I've gone through the step by step instructions on the website and signed up. That is all working fine. In fact even Rise of the Half Blood is working absolutely okay too. When I try to connect to "Eclipse Origins - IP: localhost Port 7001" it attempts five times then says fails to connect. I've tried googling to see if anyone else has had a similar problem (can find nothing), and I've tried troubleshooting. Can someone please help?