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Interface init failed: Cannot open COM port: Access to the port 'COM4' is denied.

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    Interface init failed: Cannot open COM port: Access to the port 'COM4' is denied.

    My smartstick+ stopped working out of the blue. Was working fine for years, is there a troubleshooting option available to see if the stick is dead?

    #2
    Did you reboot you computer? Checked what the Device Manager says when you disconnect/connect the stick?
    If HS got confused, you could change the COM port number (and then, make the appropriate adjustments in Plug-Ins/Z-Wave/Controller Management)

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      #3
      Are you on Windows or Linux?

      In windows, check the device manager that the stick actually IS on COM4. If it is, then there's probably another program interfering and keeping exlusive access to it.

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