Daktronics

No Ethernet communication to display, Boot up shows "No Eth"; Bad Cat5 cable

Potential Symptoms

  • "Communication Error!" appearing in the VCS dashboard.
  • Unable to establish Ethernet communication to display.
  • Venus 1500 v3 display turns red and unable to get status.
  • Venus 1500 v4 shows No Response Alert.
  • Boot sequence on display may show "No Eth", "Eth No Link" or "IP: 192.168.240.2"
  • Communication equipment such as Ethernet Bridge Radio client or Fiber Ethernet Media Converter have power but no Ethernet connection.
  • Can communicate when directly connected to the display controller, but not through the communication equipment.
  • A laptop sees a link to the controller when directly plugged into it. It doesn't see a link when connected to the controller using the bad cable.
  • The link through the bad cable may be unsteady - it will be lost once or multiple times a minute even though:
    • The cable is in good condition and not physically being moved or wiggled.
    • Its connections are clean, solid and have been re-seated.

Environment

  • Product: Galaxy, AF-3200, AF-3400, AF-3500, AF-3550, AF3700, GalaxyPro, GS6
  • Component: Ethernet Communication, M-Series Hardware Bridge, CDMA
  • Control System: Venus Control Suite, Venus 1500 v3 or v4

Cause

  • Bad Ethernet patch cable (Cat5) between the QC (Quick Connect) card and controller.

Resolution

  • Repair or replace the Ethernet patch cable.
    • Note: Contact your Reseller or Daktronics (1-800-325-8766) for replacement options.

KB ID: 000007650

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