This is posted as a FYI for those who may encounter it.
If the ethernet kit cable is plugged in backwards ethernet still works(somehow:eek:) but the led on the ethernet jack does not function. Apparently this...
Can't read the oscilloscope settings to tell but looks likely. As far as the schematic all the grounds should be terminated together. Also, I wouldn't trust any power lines (except GND) going to or coming from any...