To anybody having the realm select loop using MaNGOS
I've noticed several people asking about the realm select screen looping. I had this problem also and this is how it is fixed:
Go into your SQL editor, open the "realmd" database, then open the "realmlist" table and change the values for name and address to the proper ones (ie if you are on a LAN the address could be 192.168.0.1). It can only be the default (127.0.0.1) if you plan to play the game on the computer that MaNGOS is installed on. This solved the problem for me.
-Ryan