There was never an option to "select 2.4ghz vs 5ghz wifi networks on it's mesh products", it has always been like described here:
It's up to the IoT device manufacturer to create a product and app pairing process to support this standard Wi-Fi feature of combining the SSID for both 2.4ghz and 5ghz.
The issue is usually only the pairing process, if the IoT device has connected to a given SSID it usually handles combined SSID for 2.4ghz and 5ghz fine afterwards.
There exists some workarounds however, for instance:
- Use an old iOS, iPadOS or Android device that only supports 2.4ghz to set up the IoT device.
- Buy a cheap access point or repurpose a wireless router or range extender to broadcast a 2.4ghz only SSID. Connect it by ethernet cable to the primary/ main/ master Nest Wifi puck preferably. Add more ethernet ports by using an unmanaged switch if need be ( https://support.google.com/googlenest/answer/6274262?hl=en ).
- Walk far enough from the Nest Wifi puck(s) to make sure your phone connects to the 2.4ghz network, then start setting up your IoT device.
- Turn off your Nest Wifi network by removing the power. Feed your laptop an internet connection, either by ethernet cable from your modem, or by mobile network tethering + USB. Then use your laptop to host a 2.4ghz only Wi-Fi with the same network name (SSID) and password as your Nest Wifi network. Get your IoT devices connected to it. Remove the Wi-Fi hosted by your laptop, plug in Nest Wifi, and the IoT devices should jump to the Wi-Fi provided by Nest Wifi.
I don't work for Google.
