Just to follow up here... this is 100% an issue with the M5 Deco's. I've tested and tested and tested and I can't get any device to get a speed above 360mbps, when they all used to get the max speed...

@ca_martin82 My speed has dropped on my Deco's lately as well. I used to be able to get full 500mps or higher when conected to the main unit and in the same room, not I can't get anything above...

NOTE: I don't know if that's the correct Hardware version Recently, my Deco M5's (I've 3 set) have been giving me consistently slow speeds compared to what I used to get. I've a 500mb connection the...