The single most common issue related to this has to do with the sensitivity of the motion sensor itself. NOT with Z-Wave! If you check the HS3 log (I'm assuming you're using HomeSeer?), you'll see that things happen instantaneously when the commands are received. But.. nothing will happen until the motion sensor transmits that first Z-Wave command. The easiest test for this is to simply create a direct association between the motion sensor and the wall switch you want to control. Then walk into the room. I'd be willing to bet you'll still be having the same delays. We've seen this dozens of times.jon102034050 said:It's not uncommon for there to be a 3 second delay on a motion sensor light walking into a room
...You're using a cloud-managed hub. Then, delays will have more to do with network latency and queued processing on the web server.