Hi @Carl, After 2 days, the QoS was successfully enabled in the Deco app without any actions done on my part. I am not sure what triggered that error but it's worth noting at your end. Thank you for...

I could not enable QoS in the Deco app. It returns an error when I toggle the switch as shown below. My network consists of 3 m4 decos as satellite and 1 x50 as main deco. I already deleted the app...