Why has PowerChute Business Edition version 9.x lost communication with UPS after communication cable has been unattached and reattached?

Issue:
After detaching communication cable and then reattaching communication cable PowerChute Business Edition does not reestablish communications with the UPS.

Product:
PowerChute Business Edition v9.x

Environment:
All supported OS communicating with UPS via USB or Serial

Cause:
Communications cable was unattached while PowerChute service or daemon was running on the OS.

Solution:

 1 – Stop PowerChute service or daemon before detaching and reattaching communications cable.

2 – If cable is unattached while the server or daemon is running you can re-establish communications by

            a: Stopping and restarting the server or daemon.

            b: If step a does not resolve the issue stop the service or daemon again, reattach the cable and then brain dead the UPS.  See FA156611 for instructions on how to brain dead a Smart-UPS.