I think I fould a solution to people getting kicked off of LAN servers when someone else logs in or only being able to log into one account.
Lets say my local IP is 198.162.1.51 for starters.
First my setup:
###Your current configuration is as follows:
loginserver.ini:
[LoginServer]
loginserver=192.168.1.51
loginport=5999
worldname=My Minilogin
worldaddress=192.168.1.51
locked=false
account=
password=
[WorldServer]
Defaultstatus=
Unavailzone=
[ChatChannelServer]
worldshortname=
chataddress=
chatport=
[LoginConfig]
ServerMode=Minilogin
ServerPort=5999
Then this:
<?xml version="1.0">
<server>
<world>
<shortname>minilogin</shortname>
<longname>My Minilogin</longname>
<!-- Only specify these two if you really think you need to. -->
<address>192.168.1.51</address>
<localaddress>127.0.0.1</localaddress>
<!-- Loginserver information. -->
<loginserver>
<host>192.168.1.51</host>
<port>5999</port>
<account></account>
<password></password>
</loginserver>
<!-- Sets the shared key used by zone/launcher to connect to world -->
<key>some long random string</key>
<!-- Enable and set the port for the HTTP service. -->
<http port="9080" enabled="true" mimefile="mime.types" />
</world>
<!-- Database configuration, replaces db.ini. -->
<database>
<host>localhost</host>
<port>3306</port>
<username>eq</username>
<password>eq</password>
<db>eq</db>
</database>
</server>
Then this:
EQHost.txt <--for the local host EQ game
[LoginServer]
Host=192.168.1.51:5999
Ok now you have to set your root login game account IP to your local IP address,
not 127.0.0.1! Setting it to 127.0.0.1 locks the server for eveyone else on the LAN. I was pulling my hair out for days trying to think through this and this finally worked for me. I was able to log though my WiFi notebook and the other machines I had lying around on the LAN network.
Repeat, no in game accounts should use 127.0.0.1. It should just be a list of sqeuential network IPs.
Like 198.162.1.10 for root's LAN IP
198.162.1.11 for mary's machine LAN IP
198.162.1.12 for stan's machine LAN IP
ect...
Try this out and see if it helps.

And if it does, don't make my mistake and back your EQEmu directory and database up in a zip file so you can restore it later!
Hope this helped.
>.>