IAS server akzeptiert nicht Anmeldung

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Ich versuche eine "802.1X Port Authentication with Microsoft's Active
Directory",
sprich den IAS "Internet Authentification Server" (IAS) als radius server
einzusetzen für die wLan Authentifizierung.

Ich starte auf dem Computer das wLan,
dann erfolgt die Verbindung zum access point (linksys wap54g),
der wep key wird abgefragt und
anschliessend erscheint die Anmeldemaske user-password-domain.
Anschliessend bleibt das wLan bei "Validating Identity" hängen.
______________________________________________________
Im event log erscheint folgendes:

event ID 2
User REFRATH01.LOCAL\rainer.klingenberg was denied access.
Fully-Qualified-User-Name = <undetermined>
NAS-IP-Address = 192.168.1.148
NAS-Identifier = 0016b64f463b
Called-Station-Identifier = 0016b64f463b
Calling-Station-Identifier = 0030bdf93658
Client-Friendly-Name = beige
Client-IP-Address = 192.168.1.148
NAS-Port-Type = Wireless - IEEE 802.11
NAS-Port = 23
______________________________________________________

Wie kann ich eigentlich das eventlog des IAS server interpretieren ?
Und wo liegt mein Fehler ?

Gruss
Rainer


.



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