Also, the following should be of help.
In particular, it may help to run a Zwave repair. This is not needed for Zigbee devices, since the network will heal itself as long as you take the Coordinator off-line for about 15 minutes and then reconnect it. But zwave devices will not rebuild the address tables unless you run a specific utility to do so. So if you’ve been adding Zwave devices in a random order, or doing bench pairing prior to locating a Zwave device in its final location, doing a Zwave repair may help a lot. (also note that the position of the Z wave and the Zigbee antennas in the hub in the blog article mentioned in the following topic have been reversed in the V2 hub).