I have a whole house of this stuff. We are talking 100s of plugs, lights, sensors, etc. I picked them because they have been around forever - like 30+ years (started with the X10 stuff) so I hoped they where a safe bet. One day everything stopped working, the remote control part via the application and automation that depended on their Hub being online. I had the hub. Ugh. Okay I had the USB serial adapter also sitting around. Installed Homebridge with the "Homebridge Platform Insteonlocal" plugin on an old PINE64 board. Used it to delete the links to the old hub and connect everything to the USB serial modem (the "modem" keeps the DB of the things it can talk to). Everything works great again and I can even use Apple HomeKit. I received an email today from Ken saying they are going to do the right thing but they need to move to a subscription model for like ~$40 per year. I am fine with that in the sense they should have done that a long time ago to sort their $$$ issues. At this point I am going to stick with the local solution - remember the HomeKit stuff gives me remote access - that the hub+app gave. The HW itself it really decent and always has been. It would be great if it became available again. I am worried about something failing at this point as the eBay pricing is crazy town right now. The 8 button remote that was $30 is going $200+. The remote links to their wireless protocol and pairs locally with all the devices. You do not need anything online for it to work. To be clear - they have powerline protocol and wireless protocol that allows devices to be paired (or more then a pair) with each other locally and locally programed. It is really cool stuff given it is 20+ years old and just works.