r720 - iOS performance horrible IF WPA2 / encryption enabled on FW 110
This actually also applies to r710 only with FW 110 as well. When using standalone FW 18.104.22.168.663 , if i enable WPA2 encryption, several test iOS devices will not see above 90mbit in either direction (speedflex or speedtest.net ).
If i disable encryption, speeds go up to what they should be ( up to 550mbit real BW , depending on the iOS device's wireless capabilities).
This does NOT occur on FW 104.x (r710) nor on 106.x (r720), nor on unleashed 206.x ( r710/r720). (its only w FW 110.x and only on r710/r720, ie issue is not occurring on a r600 we have w fw 110)
In my tests im only using/enabling the 5ghz radio. (factory resets between FW changes / tests)
The issue also does not seem to affect other non iOS client devices (ie those are showing full speeds w ENC on).
(this is all in our office / lab, not in the field as its our first test/experience w the r720)
I have reproduced the issue with both poe AT and when using the ruckus 60w 48v AC adapter (r720) or 12v AC (r710). So its not a power-mode issue (ie these two APs do have special POE power requirements).
My hunch is that something on the AP is keeping iOS STAs at 802.11 N or maybe only 1x1 chain of AC when WPA2 is enabled.
(im ofcourse testing with WPA2 , PSK, AES, I have tested other ENC settings and the issue is the exact same, its only with ENC disabled do i see full, normal speeds on ios)
anyone have any ideas or suggestions? These are on 2x new r720 (and r710 we already).
(i am aware of the other large thread w iOS issues and recent FW, but those are all lack of any connectivity on iOS, the issue here is simply speed, not ever a lack of connectivity)