Arria10 PCIe Hard IP link bring up issue

Hi SK, Thanks for the info. BTW, I tried using the Arria10 SI Board Test system application for testing the transceivers. None of the transceivers connected to Bulls eye connector works in external loopback mode (see attached snapshot). I tried varying the PMA settings, but didn’t see any data looped back from TX to RX side. Any idea what could be causing this issue? The internal serial loopback mode test works fine though. FYI, the transceivers connected to the 2.4 SMA connectors on the board worked fine in external loopback mode when tested with the Board test system application. Rgds, sunil