NX2 with Qlab 4

Hello I have a problem. I try to communicate the NX2 with the Qlab.
through a router connect the console and the computer with qlab.

  1. Activate the OSC from the nx2 and put the ip and port of the mac
    2.On the mac activate the osc and set the ip and port of the osc of the nx2, but when doing a cue in qlab with the command: “/onyx/playlist/start” it doesn’t work. I have tried with more commands, but neither
    What could it be?