@Mans-1919 

I read your previous posts

your mistake is that for your relatively large-scale project you have chosen devices of a slightly wrong level.

in your case, at the very least, you need to connect all the points with an ethernet cable and then test again

but in a good way, when such objects need to be covered with wifi, you need to look at more professional solutions from Omada

https://www.tp-link.com/en/omada-sdn/

  @Godlike66 

Hi, 

I disagree on that slightly wrong level, this sysem is selling as a fast reliagble system that can handel at least 200+ devices (I use at most 55 nodes).

My core network is a Omada HW controller governing a TP-Link 48 port gigabit switch, i wil wire-up all the DECO's put them in AP mode and test again.

This does not change the fact that the system used in router mode (the normal way) is NOT very stable not even if i only use a subset of my devices on it (about 15) and expect that the internal services should work no matter what. It failed to register mDNS records an even dubble issue IP adresses on the same MAC-adres, believe me I have tested thoroughly. These systems are as expesive or even more expensive then the professional solutions you talk about, for that kind of mony I think I may expect some quality.

I chose this system to enable my family to solve issues themselves when i am not around.

I am still disappointed in this product and what it promises to be able to do.

  @Mans-1919 

-I disagree on that slightly wrong level, this sysem is selling as a fast reliagble system that can handel at least 200+ devices (I use at most 55 nodes).

when it comes to such numbers, these are possible maximum numbers, in a vacuum, you shouldn't rely on them

when they talk about 4320 Mbps at 5 GHz, you don't think that you'll get such speeds somewhere in reality, do you?)

here is another question, will the client's wifi receiver be able to digest all this or not)))

especially when you connect points to each other via wifi, the bandwidth is cut in half to provide a transit channel between the points

moreover, the wifi operating time is also spent on this. converting signals/packets between points connected to each other via wifi, and if an old client with its old wifi adapter connected to them, then the performance in general worsens. one good networker said: in wifi everything is twice as worse than is commonly believed/thought))

also about clients. perhaps when you are on the same floor, the access points will be close to each other and they will be connected by cable, then most likely they will be able to serve 200 devices

but again the question is, what is the load on these devices?) if each of them starts a torrent, then with multiple requests they will put the entire wifi network down))

and if they watch YouTube/sit in messengers, then it's quite okay

- These systems are as expesive or even more expensive then the professional solutions you talk about, for that kind of mony I think I may expect some quality.

Unfortunately, the internal filling is only half the battle

the other half of success depends on the software and its improvements

and alas, the second part is not deco's strong point by default.

It is controlled only through an application on the phone, which is very limited in functionality, unlike full-fledged routers.

and to be honest, for example, I personally don’t see the point in buying   Deco BE65    , except in some exceptional cases  

6 GHz will not blossom earlier than in 5 years, even on wpa3-sae not all devices smoothly switch between points)))

I would purchase a slightly larger    EAP670    or    EAP655  wall/ceiling AP  to provide coverage and load distribution.

especially since you already have an Omada controller and a switch it controls

If you want, you can take wifi7 omada access points, but all their charm will begin to be revealed in 5 years, as for me.

Deco is a budget solution in terms of positioning the hierarchy of network devices

and accordingly, when the price of a budget solution begins to exceed the price of a business solution, then it is worth seriously thinking. is such a non-budget solution necessary))))

building a stable and high-quality wifi in multi-story buildings/offices is not an easy task and requires certain knowledge in the field of networking and wifi

It is naive to think that if you take points (and not just 2 or 3) from the home hierarchy, even the most expensive ones available, and connect them via WiFi between floors, then everything will work perfectly.

for such projects - only business solutions, like Omada/unify (I'm not talking about more professional solutions aruba/ruckus/cisco)

connection of points only by cable, no connections between points via WiFi

the location of the points also needs to be carefully planned so that they cover a particular room at the desired frequency and signal level

after connecting, each point also needs to be configured, its power on all available ranges depending on the location of other points, setting the width and number of wifi channels and testing and testing...

This takes a lot of time, but the result is worth it.