Elbert wrote

If a device can connect to both bands, you should be able to do so. For example, my network uses different SSIDs. I have Ipads that I first set up to sign-on to the 2.4 band. Then I go to the wifi setup page and select the other band from the list and sign-on to it. (do not use the forget this network) Now the Ipads will select the available band. In one part of my house, I can only get the 2.4 band when I turn on the Ipad, however if I turn it on nearer to the router, I get the 5 ghz band. The 2.4 band does better with distance and the 5 ghz band is faster.