802.11n WLAN Standard Ratified by IEEE 802.11n WLAN Standard Ratified by IEEE The high speed 802.11n WLAN standard was ratified by the IEEE on 11 September 2009, opening the door for many users of legacy networks to upgrade to Meru 802.11n WLAN. 802.11n WLAN Standard Ratified by IEEEadmin2009-09-14T12:00:00+10:00