@David-TP Correction , the "Office" Deco is an E4R, all the others are M4R. The Ms are running the 1.8 and the E is running 1.7.

@David-TP Ive look at the firmware on all the Decos, they're all runing the newer version except and the one thats a bit slow. Thats still running the older firmware, which is the one titled office.

I have the M4 AC1200 system with 4 M4 units. My house is approximately 1200 square feet over 3 floors. We're on Virgin Media 200Mbps. The main Deco is in the front of the house connected to the...