It is no a link budget problem we are even below because we calculated with 2 30dbi antennas and use (now) 34dbi we even had tu turn down the power to 10db manual and we got a lot more speed, one problem is we can use only nstreme nv2 won't work and I don't know why, also we just use 24mb 36mb and 54Mb speed its more stable maybe I should send my config files anybody interested to help?