I've setup Server 2008 NPS (which is also functioning as a DC) to
authenticate wireless clients through a Cisco 2106 wireless lan controller.
The computer certs are auto installed through Group Policy. However, when it
attempts to authenticate I recieve the following error:
Log Name: Security
Source: Microsoft-Windows-Security-Auditing
Date: 6/2/2008 12:24:38 PM
Event ID: 6273
Task Category: Network Policy Server
Level: Information
Keywords: Audit Failure
User: N/A
Computer: DC1.coaccess.com
Description:
Network Policy Server denied access to a user.
Contact the Network Policy Server administrator for more information.
User:
Security ID: NULL SID
Account Name: 99C4R41.coaccess.com
Account Domain: COACCESS
Fully Qualified Account Name: COACCESS\99C4R41.coaccess.com
Client Machine:
Security ID: NULL SID
Account Name: -
Fully Qualified Account Name: -
OS-Version: -
Called Station Identifier: 00-1F-CA-82-A1-80:coa
Calling Station Identifier: 00-90-96-A3-E4-1F
NAS:
NAS IPv4 Address: 10.10.230.6
NAS IPv6 Address: -
NAS Identifier: COAWLC-2106
NAS Port-Type: Wireless - IEEE 802.11
NAS Port: 1
RADIUS Client:
Client Friendly Name: COAWLC
Client IP Address: 10.10.230.6
Authentication Details:
Proxy Policy Name: Secure Wireless Connections Request
Network Policy Name: -
Authentication Provider: Windows
Authentication Server: DC1.coaccess.com
Authentication Type: EAP
EAP Type: -
Account Session Identifier: -
Reason Code: 8
Reason: The specified user account does not exist.
I haven't been able to come up with any good reason for the error. I do
recall having similar issues in a previous deployment and the solution was to
modify the computer name, but that has not worked in this case. Any ideas
what is causing this error?
Thanks