LAN Windows Problem

[Humon]

Ok so i got my server up and running on my privet LAN, but can only play the game on the computer with the server. The details are as follows.

Server set up on a Win 7 netbook comp, play on comp is ok but new graphics slow it down.

Play on Desktop Win 8 and Laptop Win Vista, I get all the way to the server select screen and pick my server. Goes black and after a few moments goes back to the login screen. Both are able to login to public servers. I have made sure i got the IP address for the server in my eqhost file.

My loginserver sees the attempt to log in and everything seems to be running fine just cant play with other (Much better) computers.

Any ideas?