@David-TP thanks for your response - i have answered your questions below... Yes is only happening with the 3 x50 decos, the main unit and the be65 that is hardwired to it, has a stable connection...

I'm hoping someone can help me. I have just upgraded my deco main unit to BE65, with a 2nd unit plugged in by ethernet. I am trying to add my older x50 units as extra units to help boost in some...