I have Deco S7 and i removed Fast Roaming and Beamforming and it keeps disconnecting my phone and other phones as well i tested with android device and iOS device and issues is the same . The moment i

I connected my router to the main deco S7 then main Deco to switch LS1005G and from the switch 2 other Deco S7 too but in the digram I found the 3rd deco connected to the 2nd deco and 2nd deco to main