If you think that your keypads are not communicating (not working/voting), please refer to this article.

First of all, always start with going to the Get Feedback/EZ-VOTE toolbar and check Base Settings. If you see the receiver listed in the window (with a COM number and BaseID assigned to it) - that's a good thing. Close the window and try running your slide deck in Presentation Mode again.

Otherwise, if your suspicion is that the base (receiver) is the one with a problem, here are the main reasons why that might be the case.

  • Office needs to be repaired
    • Don't worry this sounds way worse than it is.
    • Solution: Repair it in "Programs and Features" (Windows 7), or in "Add or Remove Programs" (Windows 10) control panel: Click here for more information.
  • Receiver may not be connected (suspicion of a hardware-related problem)
    • Problem: Base was physically disconnected or the USB cable is damaged
    • Solution: Disconnect the base and plug it into a new USB port.  Click here for more information.
  • Votes from the previous polling session have not been cleared
    • Problem: You didn't Clear Responses from the polling slides.
    • Solution: Perform a Clear Responses procedure. Click here to learn more.
  • Input Source setting is set to Simulated Data
  • Participant List is invalid or shouldn't be loaded
    • Problem: If your presentation uses a Participant List, ONLY keypads in it will work
    • Solution: Delete or Edit the Participant List. Click here for more information.
  • Receiver driver is not recognized in Windows Device Manager as USB Serial Port
  • Receiver may not be recognized, is disabled, or has incorrect ID
  • Another COM device interferes with Meridia USB receiver
    • Problem: Another device (using serial port) is interfering with the base.
    • Solution: Disable, uninstall the conflicting hardware. Click here to learn more.
  • Receiver is working, but keypads are not programmed to the same ID
  • Some polling groups have been disabled
  • USB receiver may be faulty
  • Computer's USB ports are USB 3.0 ports