R52Hn Dual Nstream with diff troughtput

sorry for my bad english :smiley:

i installing RB433Ah and RB433, booth use R52Hn with dual channel [use 2 grid each miniPCi], wat happen is, on the AP side , it telling the troughput around +90mb,



and the client side only show + 30mb



its only 3 Km with clear view anyways

any idea why this happen? cause for some reason, i only got 30 mb, and i have 60mb internet upLink :frowning:

thanks in advance

please print out the config.

for nstreame dual you need 4 wireless cards, so you better use google translate and what is dual channel?