Hi

I had 2 units of deco m4. 1st unit at living room ground floor (connected to modem), 2nd unit at living room 1st floor. I did all test from my bedroom on 1st floor (close door and laptop is just 10meter from this 2nd unit). I'm on 300mbps broadband.

Whenever I connect my laptop to the unit at ground floor, I always get about 250mbps, which I dont complain much. But when I connect to the unit on 1st floor it is only around 160mbps

1st unit is much further yet get better speed?? 2nd unit is so close yet slower speed? Any idea??