Following ethernet errors, my vendor suggested that I clean all the plugs from the green ethernet cables in my cabinet (Mid-size).
I noticed a glob of goo on the KSB plug on the PC, so I thought this was the culprit and re-plugged averything, made a cold start, and ... no more pendant.
It remains dark :
I noticed that the X42 plug has it's LED shinning on the PC side (KSB), but not on the board :
Any idea what happened ?