After test results from a number of new MacBook Air units that feature built-in 802.11ac support showed that speeds did not improve over 802.11n, Apple has allegedly invited some buyers to help test a Wi-Fi specific update for the machine that should eliminate what some have suggested was a hard-wired data cap on speed. While the problem does not affect all units, even a MacNN researcher experienced the issue. Apple has been swapping out new Airs at its retail stores in order to study the units that have the problem.
