Why 2.4GHz Wi-Fi is both the savior and the scourge of the smart home

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This morning, my dog Gus took his big furry head and gave me a solid nudge. He looked at me and then at his food bowl. "Mom," he said (telepathically, natch). "The Wi-Fi on my pet feeder is borked. Again." Gus is a smart-home dog. He's used to letting me know when his food didn't dispense on schedule because his smart pet feeder dropped off the Wi-Fi network — and I'm accustomed to doing the reconnection dance that follows. If you've owned any type of smart home gadget — smart plug, bulb, security camera, garage door controller, or pet feeder…

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