The aforementioned has been reported commonly by the users. Users have attempted to connect a new device with the Insteon ISY994, and most of them received a message saying ‘Cannot Determine Insteon Engine.’
Therefore, the first thing you should do is examine the firmware on your Insteon system and ensure you are using the latest version in such a situation.
Yet another very unnoticeable reason for this message to pop up might be glitches caused by poor communication on your device.
In such a case, you can try moving it to a different location and observe the improvement after that. You can even contact tech support and ask for their expertise on the matter and be sure that you need to update your firmware.
Now, if you have already tried these ways but still receive the same message, you can try a few more things.
In this article, we have listed such reliable ways that might help you fix if you cannot determine Insteon Engine.
1. Check Interferences
If you are facing a similar issue, then you might want to look for any power interferences first. For example, a switch or something similar could have been installed somewhere that might be causing the possible interference.
We suggest you check for any disturbing element that can be barring your link from working properly.
As far as we have observed and analyzed through several sources, this cause has been the most common for the error to pop up.
2. Locate a Noisy Power Line
A noisy power line from the load could be another possible cause of your Insteon engine not being determined. Also, you might be getting a load from a similar circuit.
Power line noises or interferences will eventually hinder communication with your device.
Therefore, we would suggest you check the entire circuit board along with the loads.
3. Try Resetting the Devices
This is by far the most basic and easiest way out of this issue. If none of the ways mentioned above work for you, stop resetting your devices.
Resetting the device helps you troubleshoot some more and adjust all possible communication glitches between the PLM and the switch.
As mentioned above, if you try to establish a link and it doesn’t work, some devices may be causing a disturbance. You can try factory resetting the device, which will help fix the issue still.
If you see the same message and no improvement, you can contact me for a professional opinion.