Try going to
http://whatismyip.com/ make a not of the ip address at the top of the screen. Check your folders and make sure ALL ips (apart from the ones set to 0.0.0.0) are set to 127.0.0.1. Tell whoever you want to connect to your server to set the 3 ip addresses in their servers.ini in their client file to the ip address you copied.
If you or anyone using the same internet connection as you wants to connect you will have to use your ip address in your servers.ini (192.168.*.**) however anybody else needs to use the ip you copied.
Let me know if this helps.