Originally Posted by
zacster
I have an old phone controlled outlet that I wanted to use for the fan, but over the years the wifi in my house has changed and the phone app couldn't find the switch. I tried to reprogram it but that required being on the 2.4ghz band, but the new wifi doesn't distinguish between it and the 5ghz band so I couldn't do that either. The router broadcasts both but you can't choose. There are still lots of things I could try to make it work but I haven't gone back to it.
My router had my network SSID name automatically on both the 2.4ghz and 5ghz bands. My phone always picked the 2.4 one. So I set up a second name with "5ghz" appended to it, same password. Then set the original name to be 2.4ghz only, and the new one 5ghz only. Now I can pick one or the other. I thought the 5ghz would be better, but it's blocked more by floors and heavy walls in the way of the signal. It's faster when I'm reasonably near the transmitter, and okay throughout the house.