I have been experiencing intermittent delays controlling my devices for several weeks now. I initially noticed this with my Smart Lighting automations not turning on lights when motion is detected. The first few times this happened, I power-cycled the hub. About two weeks ago, it finally became frequent enough for me to contact support. I was told about interference, adding more repeaters, etc. Since my initial contact with support, I have noticed that the entire system seems to become unresponsive during these periods of delay. I lose the ability to control any Zigbee and Z-Wave devices in my home for a couple of minutes or so. Once things start responding again, all of the delayed commands fire off in sequence as if they’ve been queued up somewhere.
Support continues to claim that everything is fine and that I need more Zigbee repeaters even though I have now experienced this with multiple Z-Wave devices and my Z-Wave network is extensive. I’ve been a SmartThings user since 2014, my house is not large, and my hub is centrally located in the hallway exactly where my V1 hub sat. (I upgraded to a V2 hub in February.) I did humor support and purchase a Zigbee outlet to add to my system. It’s presence thus far has had no effect.
Does anyone have any advice? At this point, I’m wondering if my hub has a hardware malfunction.