LarryWSmith

So OK, I was actually overthinking this by a lot Thanks to all who replied; I'm anxious to fire up and test my backup ISY and PLM.

I have been heavily reliant on my ISY/Insteon lighting system for many years and have had almost no issues once I got the system set up. Because of the recent Insteon/ ISY994i issues I have purchased backup hardware on eBay and from the newly reconstituted Insteon company; I just need the system to outlast me:) I would like to test the new H/W by the connecting the newly acquired ISY, PLM and Insteon devices together in a test bed system, isolated from the operational system. I made a couple of off-hand attempts at testing the new devices and scared myself out of experimenting using the operational system. I suppose a Guest network could be used to isolate the operational and test devices network wise but I'm at a loss as to how to isolate the PLM from the Insteon dual band signals. Maybe a filter on the power-line but I have no idea about the Insteon wireless signals. Maybe I'll have to go out to the barn and build a Fariday cage? Or maybe I'm just overthinking this? Any thoughts would be appreciated.

dbus, Got it! Thanks

I have a lighting system composed of 30+ Insteon modules controlled by an ISY 994i. The lights are controlled using numerous 6 and 8 button transmitters that control numerous scenes; I have written programs to also allow triggering the scenes using the cheap X10 wireless palm pads. This system has been very reliable for 15 or so years. Because of recent lack of availability of ISY, PLM and Insteon modules, I have acquired spares of all of these items in an attempt to extend the useful lifetime of the system beyond the point where I will have to worry about it. The new (used) ISY that I received is running 5.3.4; my current 4.9 system does everything I want, how I want it. At this point in life, I'm really not interested in the adventures in troubleshooting/programming that are an inherent danger in a major upgrade. I would like to roll back the 5.3.4 software to the perfectly functional (for me) 4.9 version. I have searched high and low and have interacted with Customer Support several times to no avail. Any suggestions as to where I can get the 4.9 file and if there will be any problem with rolling back to 4.9 would be appreciated? Thanks