I am facing a serious problem in my network which concerns frequent disconnections of my Tapo devices from my router.

First of all, let me mention that I use an Archer AX73 and an RE705x with a OneMesh connection.

My WIFI Setup is two separate networks 2.4GHz & 5Ghz (different name). The problem is centered on the 2.4Ghz network. I am using WPA2-PSK, Channel Width "Auto" & Channel "6".

In this particular network I have +20 Tapo devices connected. Plugs, Bulbs, HUB & CAM all Tapo.

The problem is that I keep getting disconnected from my devices. I realized this problem from the Tapo app as I kept losing my devices, they would appear gray.
From Tether, when this happens, I see the last connection as "Just Now". 

Only these devices (Tapo) have this problem. Those with LAN are fine, also iPads, iPhones are without disconnections from the router.

Any ideas?