HTTPS uses Secure Sockets Layer (SSL) technology to encrypt all traffic to and from the PXE device so it is a more secure protocol than HTTP.
By default, any access to the PXE device via HTTP is automatically redirected to HTTPS. You can disable this redirection if needed.
Warning: Different network services cannot share the same TCP port.
In the HTTP Settings dialog, the "Enforce use of HTTPS (redirect to HTTPS)" checkbox determines whether the HTTP access to the PXE is redirected to HTTPS.
Note: The redirection checkbox is configurable only when both HTTP and HTTPS ports have been enabled.