I am new to this
what I am trying to do is send data from a device (connected to arduino/ethernet shield) via ethernet cables > via ethernet switch
I can get data coming into my mac and pc - but not at the same time.
Ian using the IP address of 192.168.178.143
that works on mac and or pc.
but together of course the IP address is in conflict.
how do I get 1 ardiuno via ethernet to speak to 2 seperate computers via ethernet switch.