Hi, 

I recently bought a 2 units Deco X90 system to replace my old Tenda MW3. 

All the setup went well, but I'm having some issues when moving from the point where the Deco who is connected to the main router is and the second unit, causing network drops. The only way I found, until now, was restarting the wifi on my smartphone each time I move between this points which is not much of a solution for me. 

I also had to activate the Guest Network and set it to 5ghz only, because with the Network created with 2.4 and 5, I barely have wifi because of the constant switching of frequencies on the smartphone. 

Already reset the 2 Deco units and connect them and change the ethernet cable from the main unit to the router...

Anyone faced the same issue and solve it? How do you do it?