Laptop Fujitsu with Wifi adapter : Atheros AR9285 , lastest driver v10.0.0.52 April 2012Win 7 32bit proWLC 6.0.196.0 and AP 1142 , associated in 802.11G or NWPA 2 preshared key.WLC Roaming parameter : minimum RRSI -80dbm, roaming hysteresis 2dB, ada...