Are the people trying to connect on your lan? (Ie: does their ip address start with 192.168?)
If the answer is no, there's your first problem. 192.168.x.x is a restricted address.. you cant receive outside traffic to it, without first traversing through the outside world ip address. You will have to set up your server to use your public IP address in the line that says worldaddress in the LoginServer.ini and in boot5zones.bat. From there, for you to be able to connect, I'd suggest reading up on NAT:
http://forums.eqemu.net/showthread.p...;threadid=1134
http://forums.eqemu.net/showthread.p...;threadid=3904
While those are in the linux forum, the same ideas will still apply to a pure windows network with a router.
If the people are on your lan (ie: their ip addresses also starts with 192.168.x.x) make sure you do have all the right ports forwarded if needed and that they also have no firewall software running. Also check to make sure that when you run the batch files to boot the server, that they return no errors at all.