PTP status stuck at "listening"
When operating two SPEC boards (spec_ref_design; wrpc-sw-v5) one in mode master the other in mode slave, the slave's PTP state is fixed at "listening" (no transition to "uncalibrated/wr-s-lock"). Connecting either SPEC to a WR-Switch (v5.0.1) the SPEC's functions properly in both modes, master and slave.