Locate the ‘ADV30Params.ini’ file under <C:\AMSADV3\VLSEnv\<VLS_Name>\VLS\bin>.
Place the “#” in front of the “Authentication = LDAP” attribute to turn “OFF” LDAP. Remove the “#” in front of the “Authentication=DB” attribute to turn “ON” database. Ensure the changes look exactly like below.
#Authentication=LDAP
Authentication=DB
Save the change and close the file.