a while back I put a thread in the help section about my setup acting wonky ... tried a bunch of stuff and power cycling the physical switches ended up helping the most to get things to stabilize...
Fast forward 6-7 weeks I just added 2 new switches (both Zooz Zen76 one on Fri, one on Sat).
Neither is in any rule or group - just the Amazon Echo app even though both joined directly to the hub (no hops) it seems like other groups became effected. I've rebooted and ran z-wave repair and as of this morning its still unstable.
I do not see anything suspicious in the mesh (no ghosts - ran exclude on each switch 1st even though they are brand new and then joined with out security both exclude and include took on the 1st try and nothing in the logs other then evidence of the delays or no response based on time stamps.
Based on past experience I am assuming I just need to wait it out and maybe power cycle the devices that are acting up.
Waiting it out is certainly an option, especially if your zwave details are clean.
You might try safely shutting down the hub and removing power (don't unplug the micro USB end) for a few minutes, then restarting. Sometimes if I find something wonky going on with zwave this helps.
I've seen it happen. Recently added devices and their power reporting was flooding the network with extra data (zooz power strip and zooz double plug). It's even worse if the devices are added using S0 security (which you have none of). This was causing delays in execution and missed commands.
On those switches check if they have power reporting and turn it off or or set it to max to minimize the number of reports. Might as well check your other devices too. Turn it off on anything that doesn't need it. And if you do, minimize it on the devices that you do need it on.
Your mesh looks good. As @gavincampbell says though, check for devices that are power reporting. Turn off if not needed or have it report in minutes not seconds. Power reporting can be a mesh killer.
thanks guys - no power reporting... using the same advanced driver as the reset of my switches... only difference on these are the latest hardware v2 which according to Zooz is just an upgraded voltage regulator. The only non-default setting I am using is auto-power-off is set to 30 min on both.
I was really just looking to see if this common place. This is my first real Z-wave install and I did the whole house pretty much at once. The only experience I had prior was ST 1st gen and a few early 300 series switches that were terrible that I dumped and I switched to Insteon
UPDATE: after waiting another day things seem back to normal, I didn't take any further action. I really was just looking for some input to see if this is par for the course?
Generally no...assuming you're starting w/a solid mesh and the new devices add w/out issues, you should not normally have a slowdown or other problems.
If the new device was positioned physically and included between existing devices and the hub, could it it not affect the path of those existing devices causing them to select different routes?
I would say that makes sense - but both new devices added directly to the hub and aren't included anywhere else in the mesh as repeaters (before or after running a repair)
Typically any re-routing will take at least days rather than hours. You'll see when you add say a repeater to your mesh - the chances of it getting picked up right away are usually slim to none. It could be days to weeks in cases of a new repeater\route being taken advantage of.