i have a 411AH with Sector antenna. it have mostly 16-19 online concurrent user. with no issue. the pings to the CPE from AP is 1-3 ms regular but when any user start its torrent the pings goes as high as 2000-3000 and also request time out. this happens even only also a single client use torrent. as soon as i disable mac of that client everything back to normal. even a client who have a speed of mere 256kUp and 256kdown can collapse the AP. what is the solution.