Hello guys.

I have a Deco M5 mesh network at my apartment with 4 devices. My purpose is to work only with 5 Ghz networks since I don't have any old device that needs 2.4Ghz.

However, I have other home devices/appliances that runs on 2.4Ghz communication, specially a wireless telephone and a babysitter radio. They use 2.4Ghz for intra-communication among their own, not using Internet access.

There are more than 40 (forty)  2.4Ghz  networks on the spectrum at my apartment. And this is affecting my telephone and my babysitter radio. With my Deco mesh network these devices stopped to work. If I disable all Decos, they start to work again. 

I tried to disable 2.4Ghz in the Deco application, but it just disable the visibility of SSID name. The spectrum of 2.4Ghz network from the Decos still using the available bands (sometimes in channel 8, sometimes in channel 4) therefore it still disabling my other devices.

There is something to do to completely disable 2.4Ghz channels on my Deco M5 mesh network?