The best way to get Zigbee devices to use new routers(repeaters) is to power of the hub for 15-30 minutes, which will cause devices to begin rebuilding the routing tables.
These faqs have more details:
you’ve read a little about range and message repeating, and you suspect that the reason why there’s this huge lag in a lightswitch going on in your bedroom, or why you’re having problems with your lock, is because your Devices are out of range.
Adding a second hub won’t help under the current architecture. Whether it’s v1 or v2.
To extend the mesh, you need more devices capable of “repeating” the specific messages you want repeated. That’s so they can do their little relay thing of passing the message along like a old-fashioned horseback messengers. Ride till your horse gets tired (end of your range) pass the message onto the next guy who then rides as far as he can and so on until the message reaches its destination.
which devices don’t repeat
Most battery-powered devices do not rep…
HEALING THE NETWORK TO GET ALL ROUTING TABLES UP TO DATE: ZWAVE REPAIR UTILITY
And here a little more detail on running a Zwave repair, since the blog article above just mentions it in passing. If after reading the information above you decide you want to add a repeater to your network, or if you just suspect that your routing tables may not match your real physical configuration, you can “heal” the network to improve overall efficiency after you’ve added any new devices.
Z-wave repair (also called “healing” the network) is a utility that will force every zwave node on your network to rebuild its routing table. This can rescue “orphan” nodes who are confused about who their nearest neighbors are and consequently have a difficult time getting or receiving messages.
ZIGBEE HEAL: UNPLUG AN…