The UPS service could not access the specified Comm Port.
Either the specified communications port does not exist, is in use by another application, or is malfunctioning.
Verify that the communications port exists and then verify that it is not being used by another application. If the port is being used, either close the other application or wait until the application has closed. If the communications port is malfunctioning, see if it will work with another application. If so, try to connect the UPS service again. If the service still cannot access the specified communications port, contact technical support.