What frequency does the WAP operate in when in N-Only mode? It appears that 802.11n runs in 5GHz and/or 2.4GHz. http://en.wikipedia.org/wiki/IEEE_802.11n-2009. However, when choosing N-Only, the channel drop-down only shows 2.4GHz frequencies. Is the 5GHz frequency hard-coded or just not used?
I purchased a pair of WAP4410N's and two 5GHz antennas to go with them, but the range is terrible (so far only about 100 feet). The unit is doing better with the bundled antennas.