I’ve measured the voltage between the power input bottom pin and the RJ45 metal shield: 24V. Isn’t the shield supposed to be connected to GND? If so, it seems I might have that grounding issue you were telling me.
I forgot something that might be relevant: a few weeks ago the fuse F0 burned out and I’ve replaced it with http://www.ebay.co.uk/itm/390813577146.
P.S.
This is starting to be pretty frustrating. I have to unplug and plug back the controller every morning….
Thanks,
Vlad