Hi. I had 4 e4 decoders. With more than fifty wifi clients (a lot of iot, which I'm trying to improve, but, for now, many of them go to the internet, to the hardware provider. This complicates the network, I understand. I have migrated a lot to zigbee, which seems to work better. But, replacing wifi devices in some cases is expensive, in others impossible). So my wifi network has to work with that number of devices. I thought that going to x20 would improve things, but, as I only replaced two, maybe it became more complex. Many of the iot devices work in 2.4. The devices that I could, and that don't move, I "forced them to stay in the x20 that corresponds to them". But, with the e4, it doesn't work. On the other hand, at this moment, the "fix node" option (or something like that, I don't remember what it said) disappeared. In short, many problems. Would this be solved by replacing the two missing e4s with x20? I don't want to buy them and see that they don't work for me. One thing that happens is that, when I move around with the cell phones, the network goes "crazy", and many 2.4 devices lose their connection. Then, everything stabilizes. Is there a way to measure what happens? Obviously, my house already works based on those 50 devices (4 wifi fans, 4 TV's, smart plugs that measure electrical consumption, the roomba and the mop, partial consumption measurements for each room, etc.). And I'm going to add more to be able to manage my solar project. So, it's not very convenient for me to try radical solutions, like setting up a separate network for 2.4, or things like that. I just want to measure. Or, I really want someone to assure me that it's worth spending on another 2 x20. Because of the chorizo ​​structure of my house, I need to have several nodes. Well, excuse the length, but, I wanted to be able to show you the complete picture.