buenas amigo la solucion para que puedas conectarte tanto en lan como en wan a tu server es crear 2 reynos uno con el realist de la ip externa y otra con la ip interna:
<LogonServer Address = "nombre del server"
Port = "8093"
Name = "ascent"
RealmCount = "2">
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<Realm1 Name = "nombre del server"
Address = "ip experna del server:8129"
Icon = "PVP"
Colour = "1"
Population = "1.0"
TimeZone = "1">
<Realm2 Name = "nombre del server2"
Address = "ip local del server:8129"
Icon = "PVP"
Colour = "1"
Population = "1.0"
TimeZone = "1">
<LogonServer Address = "nombre del server"
Port = "8093"
Name = "ascent"
RealmCount = "2">
----------------------------------------------------------------------------------------
<Realm1 Name = "nombre del server"
Address = "ip experna del server:8129"
Icon = "PVP"
Colour = "1"
Population = "1.0"
TimeZone = "1">
<Realm2 Name = "nombre del server2"
Address = "ip local del server:8129"
Icon = "PVP"
Colour = "1"
Population = "1.0"
TimeZone = "1">