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DMX Core

Troubleshooting

We have worked hard to ensure the DMX Core 100 is as stable as possible; however it is running a full Linux OS so things can happen. Here are some suggestions that can help to recover a device.

The DMX Core 100 connects to a central web service to get updates and allow support personnel to analyze log files. The first thing you should try is to make sure the unit is on a network connected to the internet.

To wipe show content and return to empty first-start defaults while keeping the OS, network, and license, use Factory Reset in the Web UI. Re-flashing the boot image is only needed if the device will not boot — see Re-flash Instructions.

Force DHCP mode

If you can’t access the GUI to change the network settings, and the device was on an isolated network without internet access and a static IP, you need to make sure it has internet access. In some networks that is tricky when set up with a static IP, perhaps without a default gateway. If your device is on release rev223 or later there’s a feature to reset the unit back to DHCP using a USB stick.

  • Take a USB stick with either FAT32 or exFAT file system
  • Create a plain text file at the root named dmxcore.txt with a single line:
    force-dhcp
  • Save the file and eject the USB stick
  • Insert into the DMX Core 100 and reboot
  • After a few minutes it should change the network settings back to DHCP. There may not be a visible indication that it has taken place, but you can contact our technical support to verify that the device has reconnected to the deployment platform.