Hmm, well I think my bro turned firewall off and opened ports 10050 to 10060. Though I could think you could just disable it for jj2 somehow. Oh yeah, and make sure you ask someone else to check if your server is pinging, you cannot (or at least myself) open another window of jj2 to check if your server is pinging. In other words, you cannot open another window of jj2 and attempt to join your server again.