Strange issue with R710 on latest unleashed firmware. Upload speeds consistently incredible on both laptop and phone but downloads even from 5 ft away never go over 200 but stay consistent through 3 thick walls. Speedflex on android shows 550 up 550 down to AP. Iperf reflects speedtest.net results. Cable shouldn't be the problem as I have plugged my laptop on it and gotten the gigabit fiber speeds I should be getting. I have factory reset it countless times set everything to auto and tried manually setting the bands and channel width, am I missing something? Any help would be appreciated.
In addition I would suggest using a fast internet connection and trying to use something like the Speedtest app for iOS or fast.com. Perhaps iperf's packet sizes and number of streams hides the issue a bit. I definitely see it pretty badly with Speedtest on a gigabit connection. Speedtest uses a dozen or two HTTPS connections to measure speed.
Yeah I agree, the problem seems worst with 2 stream 802.11ac Apple products running iOS, especially iPhone X and newer phones. Makes me wonder if something is going awry with MIMO powersave techniques.