Open them in a text editor and locate lines containing IP , BindIP , or LoginIP . Change those values to 127.0.0.1 .
Once your SQL Server is active, you need to populate it with the database schemas specific to version 4.15. A standard 4.15 server release generally includes clean .bak (backup) files or .mdf / .ldf files. The typical databases required are: RF_User (Handles account creation and logins) rf offline 4.15
If you are interested in running a server, you might want to look for updated 4.15 files in community forums dedicated to private server development, as these sites often host the most recent "Repacks" or "Offline Packages." Open them in a text editor and locate