Why doesn't the Receiver Precision Time Protocol (PTP) Ready signal (o_sl_rx_ptp_ready) assert after completing the reset and calibration sequence in 10G/25G PTP variants of the E-Tile Hard IP for Ethernet Intel® FPGA IP Core?

Due to a problem in the Intel® Quartus® Prime Pro Edition version 19.3, 10G/25G PTP variants of the E-tile Hard IP for Ethernet Intel® FPGA IP core, you may see the RX PTP Ready o_sl_rx_ptp_ready signal is not asserted when sending Ethernet packets after the reset and calibration sequence completes.

A patch is available to fix this problem in the Intel® Quartus® Prime Pro Edition software version 19.3. Download and install the Patch from the appropriate link below. 

Download patch Intel® Quartus® Prime 19.3 Patch 0.02 for Windows(.exe)
Download patch Intel® Quartus® Prime 19.3 Patch 0.02 for Linux(.run)
Download the Readme for Intel® Quartus® Prime19.3 Patch 0.02(.txt)

This problem has been fixed starting in the Intel® Quartus® Prime Pro Edition software version 19.4.