nsosnicki wrote:...Indigo did not generate any error messages. I was under the impression that commands were retried until acknowledgment was received or an error was generated.
There is a preference to enable ACK checking. Turn ON the checkbox "Report error on all NAKs..." inside the PowerLinc V2 options dialog (prefs dialog, press Interface Options... button). There are cases where, because of an INSTEON timing problem, acknowledgments won't be seen by the PowerLinc V2 even though they are sent. This is why the preference is OFF by default. In general, the more INSTEON modules you have the less likely you'll have the "missing acknowledgment" problem. However, if you only have a single LampLinc V2, then you might see it often enough that Indigo, by default, ignores the fact that it doesn't receive an acknowledgment. Point being, if you turn on that pref then you might see an occasional ACK failure in the Event Log even when the module did turn on/off (by occasional I mean less than 2%). If you have several INSTEON modules (10 or more maybe?), then you are unlikely to have the missing ack problem because of the strong mesh network you will have.
One last note -- the above preference only deals with how Indigo handles missing ACKs: does it show an error and not update the device state, or does it let a missing ACK slide. No matter what the PowerLinc V2 will retry sending the command to the module if it doesn't receive an ACK.
Regards,
Matt