Have 4 x deco M9+ Around the house. Now we have a problem with one of the deco boxes ( the one farest away from the main box) it will only get signals from the main box and not the deco box between the two. Ofcourse the signals are then very poor. I have tried to put the problem deco next the box I want it the get the signals from but it still gets it signals from the main box. Only a Cat6 cable between the midle box and the problem box helps. 
I have also switched to of the boxes but still the same problem. 
 

please help!! Any settings that may need to be changed in the App? 

Annie, Norway