When using the Ethernet Link Inspector in Intel® Quartus® Prime Pro Edition Software version 19.4, clicking List JTAG Masters button, will not list Intel® Agilex™ Devices in the JTAG Master Selection text box.
Intel® Quartus® Prime Pro Edition Software 19.4. Tool Kits fail to support the Intel® Agilex™ Devices.
To work around this problem, use the Ethernet Link Inspector in the Intel® Quartus® Prime Pro Edition Software version 19.3.
This problem is fixed starting in version 20.1 of the Intel® Quartus® Prime Pro Edition Software.