Dear Sir, please check setting tx power - mode,is that still default? I have same problem with yours, rb Rb411r, signal is enough ( -62 db till -69dB ), then I replace RB with PC board, but problem still happen so, I think problem not from the board, I have read in this forum before that problem bec...

Dear Sir,

i think you have interference problem
signal is still enough but your bandwidth getting slower

try upgrade and use superchannel and use band frequency 2.4ghz-only g

hope that can help your problem

rgds, yos
Indonesia