Sonoff switches (sonoff mini) are randomly not visible for sonoff server / scenes not working
I have configuration like shown below:
I have few Sonoff mini switches connected to "Gabinet" and to "Babcia" and few simple scenes set up in Ewelink app. If one switch is turn on, then turn on also the other switch and vice versa. That's the logic of the scenes.
I have several issues:
1. Scenes are usually not working even if Sonoffs are visible in Ewelink app and it is possible to turn them on / off manually. After restarting deco network it is working fine for few minutes
2. Sonoffs are visible in Ewelink app but after pressing them, they turned gray. After few minutes they are available again and working fine for another few minutes. - after restarting deco network it works fine for few minutes
3. I cannot ping sonoffs
I turned off fast Roaming and Beam Forming. I also made an reservation of IP addresses for all Sonoffs.
All Sonoffs are set up to work via LAN. - without it, they are not visible in the Ewelink app more often.
I'm starting to give up over these deco devices. With normal router Sonoffs works normal. I installed Decos to have better Wifi range and to be able to call via messanger / whatsapp from all places at my home (mesh). Unfortunately this is also not working fine. Sometimes when I call someone via Messanger it take very long time to start calling. And again after restarting Deco network this problem is gone for few minutes.
I will be very grateull for any help :)