RADIUS og IAS

Hej

Jeg har sat mit ZyXEL B-1000 AccessPoint op med RADIUS og efterfølgende IAS på en Win2003-server. Jeg kan se i Event Loggen at de snakker fint sammen, men det er endnu ikke lykkes at komme på via det trådløse netværk.
Jeg har registeret IAS i Active Directory…

På klientsiden bruger jeg det medfølgende program fra Zyxel til at styre det trådløse og en AEGIS Client til at godkendelse, men egentlig vil jeg gerne slippe for det og bruge det indbyggede (hvis det findes) i Windows.

Den seneste fejl i Event loggen er:
Event Type:    Warning
Event Source:    IAS
Event Category:    None
Event ID:    2
Date:        11-09-2005
Time:        00:41:58
User:        N/A
Computer:    SBS
Description:
User Daniel was denied access.
Fully-Qualified-User-Name = dkj.local/Users/Daniel Knakkergaard Jespersen
NAS-IP-Address = <not present>
NAS-Identifier = ZyAIR sender
Called-Station-Identifier = <not present>
Calling-Station-Identifier = <not present>
Client-Friendly-Name = Accesspoint
Client-IP-Address = 192.168.1.2
NAS-Port-Type = <not present>
NAS-Port = <not present>
Proxy-Policy-Name = Use Windows authentication for all users
Authentication-Provider = Windows
Authentication-Server = <undetermined>
Policy-Name = Connections to other access servers
Authentication-Type = EAP
EAP-Type = MD5-Challenge
Reason-Code = 19
Reason = The user could not be authenticated using Challenge Handshake Authentication Protocol (CHAP). A reversibly encrypted password does not exist for this user account. To ensure that reversibly encrypted passwords are enabled, check either the domain password policy or the password settings on the user account.

Hvad kan der være galt? noget jeg har overset?