two was to change/turn on and off the wifi networks 2.4 and 5GHZ.
1. if you have an app the you can manage your wifi router with. or
2. the website you use to manage your wifi router.
Both should have an option (check box) to turn on and off either GHZ network. If you dont have either, maybe tell us the make and model? But you will need either the app or website that manages your wifi. The manufacturers website should have these for ya if you dont have them.
Connect your phone to the 2.4 frequency of your router. That's all it will see. Connect your phone app to the Camp Chef using bluetooth. Once that's done, you'll be able to connect the cooker to your 2.4 router using the phone app.

This is my internet router provided by Frontier. How can I change it to 4G and if I do how will the change affect other devices in my house? Will the $20 4g extender work?