2.4 GHz on Orbi AX4200 (RBK752)?

!Not sure if this is the "right" way to do it but this way seemed to work for me - 

In the Orbi admin site (192.168.1.1) - 

1. Go to the Basic tab

2. In the Basic tab, click Wireless

3. In the "Enable AX. . ." section, uncheck the box for Enable 5GHz leaving only the Enable 2.4GHz box checked.

4. Apply the settings.

5. Once that's finished saving (it will take a moment), you can set up your 2.4GHz devices.

6. When those devices have been set up re-enter the admin tool and re-enable 5GHz. Both can now be enabled.

My 2.4GHz plugs all seem to be working now with this configuration. Maybe having both networks active confuses the device when setting them up?

Hope that helps!