[ehyoga]

1. I own a Milling machine EMCO Concept MILL 55, I have a connection to PC with Windows XP, controller sinumerik a few months ago I stopped using the machine
   
   now after three months without used, it does not generate a connection between the PC and the CNC
   Do not throw me an error message
   Just do not connect, you do not hear the typical blow, check the ethernet connection on the pc, sending data from the pc to cnc, but does not resive cnc data to pc

[Squeak911]

I have had the same problem with my concept 55. The internal motherboard was bad on my mill. I did a visual inspection and found 10 different capicators bad. I would pull the motherboard out and bench test it to see if it boots up.