If you are using the Passwords with Basic protocal and have the Include 4D Passwords option checked you can let the 4D Web Server handle the login and validation of users. However, this only works if the On Web Authentication method doesn't exist. The method must be deleted, removing the contents of the method will not be sufficient.

To delete the method highlight the On Web Authentication method in the Explorer and click on the minus sign.



If the minus sign is greyed out the method is already deleted.