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That sounds like an issue with your router. There’s absolutely no reason why a device using 2.4ghz WiFi shouldn’t be able to talk to a device using 5ghz WiFi, w
by avianlyric 4y ago
That sounds like an issue with your router. There’s absolutely no reason why a device using 2.4ghz WiFi shouldn’t be able to talk to a device using 5ghz WiFi, with both WiFi networks are on the same logical LAN.
It’s not like devices can detect what frequency the other device on network is using, just like it can’t detect if the device is connected via Ethernet, plugged into power, or running on a battery.
I would check to make sure your router is properly propagating broadcast packets around your network. That’s the number one cause of smart home discovery fails.