Troubleshooting Art-Net Tools

Make sure your workstation's network settings are correct

  • Configure your workstation as described in Art-Net Tools section "IP Network"

Make sure the workstation is receiving ArtDmx packets (if any are being sent)

  • Configure your workstation as described in Art-Net Tools section "IP Network"
  • Start sending ArtDmx packets (on whatever third-party device you're using)
  • Open a Terminal window and type ifconfig
  • From the list ifconfig, pick the network interface you expect to be receiving ArtDmx packets on. The network interface is the short alphanumeric code at the beginning of each group of lines. It's most likely going to be either en0 or en1. Choose based on the inet values --- these should match the settings configured in the System Preferences > Network panel.
  • In the Terminal window, type:
sudo tcpdump -i en1 -X port 6454

(replace en1 with whatever network interface you chose above.)

  • Let it run for a few seconds. If you are receiving packets, you should see something like this:
listening on en1, link-type EN10MB (Ethernet), capture size 65535 bytes
14:38:57.760513 IP 10.0.18.105.52429 > 10.255.255.255.6454: UDP, length 530
   0x0000:  4500 022e a9cb 0000 4011 a78c 0a00 1269  E.......@......i
   0x0010:  0aff ffff cccd 1936 021a cfb6 4172 742d  .......6....Art-
   0x0020:  4e65 7400 0050 000e 0000 0000 0200 8d97  Net..P..........
   0x0030:  f3fe f9e9 1f35 0318 7866 0000 8e00 0000  .....5..xf......
   0x0040:  0000 0000 0000 0000 0000 0000 0000 0000  ................
   0x0050:  0000 0000 0000 0000 0000 0000 0000 0000  ................
   0x0060:  0000 0000 0000 0000 0000 0000 0000 0000  ................
   0x0070:  0000 0000 0000 0000 0000 0000 0000 0000  ................
   0x0080:  0000 0000 0000 0000 0000 0000 0000 0000  ................
   0x0090:  0000 0000 0000 0000 0000 0000 0000 0000  ................
   0x00a0:  0000 0000 0000 0000 0000 0000 0000 0000  ................
   0x00b0:  0000 0000 0000 0000 0000 0000 0000 0000  ................
   0x00c0:  0000 0000 0000 0000 0000 0000 0000 0000  ................
   0x00d0:  0000 0000 0000 0000 0000 0000 0000 0000  ................
   0x00e0:  0000 0000 0000 0000 0000 0000 0000 0000  ................
   0x00f0:  0000 0000 0000 0000 0000 0000 0000 0000  ................
   0x0100:  0000 0000 0000 0000 0000 0000 0000 0000  ................
   0x0110:  0000 0000 0000 0000 0000 0000 0000 0000  ................
   0x0120:  0000 0000 0000 0000 0000 0000 0000 0000  ................
   0x0130:  0000 0000 0000 0000 0000 0000 0000 0000  ................
   0x0140:  0000 0000 0000 0000 0000 0000 0000 0000  ................
   0x0150:  0000 0000 0000 0000 0000 0000 0000 0000  ................
   0x0160:  0000 0000 0000 0000 0000 0000 0000 0000  ................
   0x0170:  0000 0000 0000 0000 0000 0000 0000 0000  ................
   0x0180:  0000 0000 0000 0000 0000 0000 0000 0000  ................
   0x0190:  0000 0000 0000 0000 0000 0000 0000 0000  ................
   0x01a0:  0000 0000 0000 0000 0000 0000 0000 0000  ................
   0x01b0:  0000 0000 0000 0000 0000 0000 0000 0000  ................
   0x01c0:  0000 0000 0000 0000 0000 0000 0000 0000  ................
   0x01d0:  0000 0000 0000 0000 0000 0000 0000 0000  ................
   0x01e0:  0000 0000 0000 0000 0000 0000 0000 0000  ................
   0x01f0:  0000 0000 0000 0000 0000 0000 0000 0000  ................
   0x0200:  0000 0000 0000 0000 0000 0000 0000 0000  ................
   0x0210:  0000 0000 0000 0000 0000 0000 0000 0000  ................
   0x0220:  0000 0000 0000 0000 0000 0000 0000       ..............
  • If you don't see output like the above, check your third-party device, hardware connections, and network configuration (described in Art-Net Tools section "IP Network"). Don't proceed until you're seeing packets.
  • Close the Terminal window

Make sure the ArtNet-SendReceive.qtz sample composition is displaying received packets

  • Open the ArtNet-SendReceive.qtz sample composition
  • Disable the ArtDmx Sender patch
  • Make sure the ArtDmx Receiver patch's 'Sub-Net' and 'Universe' inputs are configured to match the settings on your third-party device
  • Change the Structure Key Member patch's Key input to match the DMX channel you expect to see values from. The Key is a number between 1 and 512.
  • The bottom number in the QC Viewer window should now show the current value of the DMX channel you selected
  • Don't proceed until you see nonzero DMX values
  • Close the sample composition