Devices only see 5GHZ router - Need to see 2,4ghz also

Tank42 wrote:

All my devices only see my 5ghz T-Mobile gateway.  I’d like to add smart bulbs that require 2.4ghz. 

Solution?

HHad the same problem moving from Xfinity to T-Mobile I have approximately 45 devices and 42 of them are on 2.4 when I switch to T-Mobile only five megahertz would run and I did set it up to automatically to switch in the settings. I went back to Xfinity and they all worked fine. A YouTube review said that you had to hook up your router that you may have had before and connect it to the T-Mobile box. We call that a Rube Goldberg when something is supposed to work and it doesn't so you find a workaround. That's cheesy if it's true