Galaxy cannot communicate after extended time of not using Venus 1500, USB port in sleep mode


  • Unable to connect with control software
  • Immediate alert in Venus V4 "cannot connect"
  • Cannot poll serial radios, fails immediately
  • Cannot loopback serial communications, fails immediately
  • Disable and enable the adapter does not change outcome


  • Product Family: Message Displays
  • Product: Galaxy, Galaxy Pro
  • Components: USB/Serial Adapter, USB/Ethernet Adapter
  • Control System: Venus 1500, Display Studio, M2configurator


  • USB port is put to sleep mode by computer Operating System settings.


  1. Go to Control Panel
  2. Power Options
  3. Select "Change when the computer sleeps"
  4. Select "Change advanced power settings"
  5. Scroll to USB settings
  6. USB selective suspend setting
  7. Change both "On battery" and "Plugged in" to Disable and Apply.

Work Around

  • Restart computer

KB ID: DD2917377

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