These are NOT RELIABLE repeaters.
After becoming increasingly frustrated with frequent Z-Wave power cycle events I blew away the entire Z-Wave portion of my system; well north of 100 devices, Since my Iris days I have always suspected their reliability. So I decided today to start the rebuild process by only connecting 20 of my 42 Iris Smart Plugs to create what was supposed to be a strong and stable Z-Wave plus backbone.
The first 5 SmartPlugs were in the same room as the hub. After pairing them I ran a Z-Wave repair with no errors. I then moved to add devices in an adjacent bedroom, 4 Smart Plugs total. Added in the 4 devices then ran a Z-Wave repair. Three of the 4 devices in the adjacent room, no more than 12 feet from the hub failed with “Could not update mesh info” and “Could not update route”. The 4 failed devices were removed, and one was added back. A repair was run again and still failed with the same message. Moved that plug into the room with the hub, ran repair and had no errors. Moved the plug back where it was, 12 feet from the hub, and the errors recurred. Thinking it might be a coverage issue, I added the 3 remaining SmartPlugs for that room back in, ran a repair and the same 4 of 5 in the room failed with errors.
So I moved into the dining room, adjacent to the room with the hub and added 4 Smart Plugs and ran a repair. 3 of 4 devices failed with errors, while 2 of 4 were non-responsive after the repair. I proceeded to add more devices into the living room, off of the dining room. Total distance from hub about 35 feet. These devices would not pair in place. I had to move them close to the hub to pair. Once moved back into place all of those devices generated “Could not update mesh info” and “Could not update route” errors. Most of them became non-responsive too. I’m used both a Iris Repeater DTH form the forum as well as one I wrote and observed the same behavior with both.
It is my belief that these devices are not reliable. Based on my observations they’re one-hop repeaters which will NOT repeat a message sent from another Smart Plug. I have not been able to reliably connect the repeaters more than 30 feet from my hub. Even worse is almost every repeater not in the same room as the hub generates mesh and route errors. There are no other Z-wave devices on my network other than the repeater portion of 20 Iris Smart Plugs.
All of my plugs have the 20011050 firmware. I’m told theres a 20081050 firmware available, but as a test the day prior to this experiment I powered up my Iris hub and connected one Smart Plug. In 14 hours it did not update. I’m going to re-add some of my GE switches this evening and run another re-build. My guess is some of the mesh errors will go away. I am very much unimpressed with the performance of the repeaters in these devices.