How do we connect 2.4Ghz wireless devices on the Orbi network?

Another suggestion that appears to work in some cases is to temporarily tell the Orbi to stop "broadcasting SSID" on the 5G network.  This is easy on the web interface on the Advanced Tab->Advanced Settings->Advanced Wireless Settings.  Tell the phone you are using to "forget" the Orbi WiFi network, then connect to it again by selecting from the list of WiFi nodes and entering the WiFi password.  After the setup is complete, the Yale or Roomba should be connected and you can go back and tell the Orbi to begin broadcasting the SSID on the 5G network.