2.4 GHz not showing up

I am trying to set up my ring doorbell which only runs off a 2.4 GHz network. I have gone into the app and split my WiFi network into 2.4 and 5 GHz and named them separate things. The 2.4 GHz network won’t show up on my ring camera app or ANY of my smart devices. I’ve even turned off my 5 GHz network and it still doesn’t show the 2.4 network. I’ve rebooted my router, rebooted my devices, and tried everything I can think of and everything your “support team” told me to try. 

I find it hard to believe that the leading video doorbell brand is not compatible with a leading internet provider