Knowledge Base / WinDiscovery cannot discover the device

WinDiscovery cannot discover the device

If WinDiscovery cannot discover a Masterclock device, the cause is usually network segmentation, blocked UDP broadcasts, or an incomplete discovery cycle.

Applies to: GMR, NTDS, NTP100, RC
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NTDS/TCDS displays, including LUX: NTP and network instructions apply to NTP or dual controllers. TC controllers have no NTP or network options.

Symptoms

The device does not appear after a WinDiscovery discovery cycle completes.

Possible causes

Troubleshooting steps

  1. Confirm power and Ethernet link/activity indicators. Check that the switch supports the device link speed.
  2. Run WinDiscovery from a PC on the same physical LAN as the device. Click Discover and wait for 100% completion before selecting a device.
  3. Check that the PC and network allow WinDiscovery discovery traffic on UDP port 6163. For network-policy guidance, see Network ports and protocols for WinDiscovery and Masterclock applications.
  4. If local discovery works but remote discovery fails, follow WinDiscovery cannot discover devices across subnets or VLANs.
  5. If discovery remains unreliable, use an alternate management method only if the device supports it and network policy permits it.

Related articles

Article ID: KB-NET-007
KB Version: