How to pass through the "Internal Server Error" error message while setting up Heartland payment account? Add the UPT in the JuiceNet Dashboard using the UPT serial number. Refer to Add New Device for more details. Related articles JuiceBox LED is showing Dark Purple color and indicating offline status. UPT shows “E09 - Failed to get end point. Check the network and the APN” error message on the screen. UPT is blacklisted by JuiceNet. How to pass through the “E11 - Failed to get config” error message on the UPT screen and time displayed is not the correct time zone? UPT shows “E11 - Plug 1 is not connected” and/or “E11 - Plug 2 is not connected” and/or “E02 - Inet RX” error messages on the screen.