I had no ghosts last night, and I haven’t made any changes in anything, including the sensor location. So your moving it might not have made a difference.
Also, the sensor being out of range would cause it not to be able to get its reports through. But it wouldn’t cause ghost reports. So if there was a real activity report and it got through, and then the inactivity report never got through, you might think there had been continuous motion for longer than There was. But range wouldn’t just randomly cause a new activity report to appear.
And another also: zigbee spreads. If you’re trying to get a stronger signal from the hub, the best place to put the sensor is not right next to the hub, it’s about 10 feet away from it. You also want it to be at least 10 feet away from your Wi-Fi router. So in the same room with a clear line of sight to the hub is good for testing, but move it a few feet away.
There are three likely things that should cause you to have to move a zigbee sensor that used to work at 30 feet closer to the hub.
- the battery is dying
Two) there is a new source of interference, typically boosted Wi-Fi. This could be affecting either the sensor or the hub.
Three) the device was previously using another device as a repeater to get signal to the hub and the other device has moved or become defective.