Currently using an ISY994 with the 500 series z wave board. Everything works great and its has been super reliable. Rarely ever get an unresponsive device or missed event. Everything is on the latest available version for that device. Currently only have z wave devices (no Insteon). Home consists of probably 40-50 devices mainly Homeseer HS-200 switches and dimmers. Also have some GE outlets. The vast majority are z-wave Plus devices, but there are a few that are not (probably 2-3 at most).
I recently tried to add some new devices:
Zooz Zen52 which are z wave 700 LR (on latest firmware). Those connected fine, but after connecting the reliability was only about 50% of the time. They would work turning on, but a few seconds later would fail to connect when turning off. Causing the ISY to remain "Busy" while trying to reestablish communication. I put in two of those approx 10" apart. They are within 5-10 feet of Homeseer switches and dimmers. I synchronized, repaired links, updated neighbors and also just gave it time to try to correct itself on its own. Looking under zwave details they both had routes from the ISY and listed the 30-40 other devices as neighbors. BUT it was still a 50/50 shot if they would work when needed. Originally tried including close to ISY. Per Zooz support I tried excluding (had to move back very close to ISY), then readded them in their final location. Took about 20 tries to get them to add in the final location. Made no difference in reliability.
So I pulled those out and replaced with Shelly Wave PM2 devices, which are z wave 800. Almost the same exact behavior, except I would say the probability is 80/20 with these devices. I excluded and added them very close to the ISY, then moved to final location.
Are others seeing this behavior with newer devices? Is our only course of action to either find 500 series devices or upgrade to Eisy?
Or am I doing something else wrong?
I attached the ALL Node details for the Shelly Wave PM 2, if anybody sees a blaring issue.
Shelly Wave PM2 Node Details