fast reauthentification EAP-TTLS and vlan assignment

Hello, I'm trying to use vlan assignment under EAP-TTLS authentification. It works. Furthermore, when reauth is needed by the Cisco AP (after 300 seconds), my supplicant NetworkManager under Fedora 9 tells fast reauthentification. At this point, Freeradius does not send again vlan attributes (TTLS cache is enabled) and the AP puts the user in default vlan. Is this an issue in Freeradius, Cisco AP, supplicant ? May I miss something .... Thanks -- Jérôme BERTHIER INRIA Bordeaux - Sud-Ouest Service des Moyens Informatiques 05 24 57 40 50