Smartthings Motion & Multi Sensors losing connectivity on a daily basis

[a4refillpad (Wayne)]

Then your problem is very likely just an interference signal quality one.
Have a look here:

Occasionally ST MOTION Sensors stop working

I’d be really surprised if this worked to change the zig be channel, although it might work to improve communication and the zigbee network . Zigbee is not supposed to change the channel just because you take the hub off-line for a while. If it did, every single device would then not be available to the hub when it returned. @slagle has previously said that the V2 hub can change its zigbee channel if you do a complete factory reset, but that’s not just a power off/power on. The “network rebuild” that the SmartThings hub does after it goes off-line for at least 15 minutes and then returns to power , called a “network heal,” is an instruction to all of the individual end devices to rebuild their own neighbor tables so they know who their physically closest neighbors are. It doesn’t chang…