Connected Device Connection Issues

I have a XB7 Gateway.  I just purchased an air conditioner that is wifi capable and uses the 2.4 ghz band, but am having connection issues. The manufacturer (Frigidaire / Electrolux) says that i need to split off the 2.4 ghz band from the 5.0 ghz band into separate networks to address the connection issues.

The Xfinity app says that the air conditioneris connected to the gateway and connection type listed is 2.4 ghz.

We do have (4) boost pods located throughout the house.

How do I do this