WB70
November 29, 2017, 12:23pm
6
Before you go ditching anything or throwing things through the wall (that can be more expensive), follow @tmleafs post above. In addition to the mesh, there’s a real possibility that you have Network interference between the channel your WiFi (router) is set to and what the SmartThings Zigbee channel is set to. There are a ton of threads related to this. I’m not saying that’s your issue, but someone who has several ST Motion and Multipurpose sensors, I have never experienced anything like this or even remotely close. So before you go tossing the existing devices and replace them with Iris, you need to troubleshoot everything first so you don’t end up with the same issue with a new set of devices.
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…
@Mr_Lucky said, it cannot change its Zigbee frequency, either on the fly or as a user request. Whatever it was set to at the factory is what you’re stuck with. So, to be honest, “best practices” from a network engineering standpoint just don’t apply to a device of this type.
The best things you can do with a SmartThings hub to limit Wi-Fi interference:
A) put your smartthings hub at least 3 m from your Wi-Fi router. Also keep it away from metal.
B) whenever possible, put your Wi-Fi traffic on 5 GHz, not 2.4. And choose a 2.4 Wi-Fi channel which is the maximum distance from whatever Zigbee channel your SmartThings hub happens to be on.
C…
Short blurb from the 2nd link above:
The best configuration is usually to make sure the Wi-Fi router and the SmartThings hub are at least 10 feet apart, and use Wi-Fi on channel 11, SmartThings on channel 11, and the Phillips hue bridge on channel 25. (See the diagram in post one of this thread – – Zigbee channel 11 and Wi-Fi channel 11 are about as far apart as you can get.)
Unfortunately, however, since it’s not easy to change the SmartThings channel and it doesn’t use channel agility, you may have to go through all the steps above if you’re having interference problems.
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