NPS Wireless stopped working

After a reboot of all DCs following an Exchange 2010 SP3 update our corporate wireless has stopped working.

The environment is VMware based with Server 2008 R2, wireless is provided via Cisco APs connecting to DC01 (Radius Server).

The troubleshooting I have tried so far is as follows:

Checked Connection Request and Network Policies are still the same
Recreated NPS Network Policy
Turned on security logging for NPS related events
Changed network policy to allow both users and computers rather than just computers
Rebooted both DC01 and Cisco AP

The error that I am seeing within the event log when trying to connect is:

Log Name:      Security
Source:        Microsoft-Windows-Security-Auditing
Date:          18/10/2013 09:51:57
Event ID:      6273
Task Category: Network Policy Server
Level:         Information
Keywords:      Audit Failure
User:          N/A
Network Policy Server denied access to a user.

Contact the Network Policy Server administrator for more information.

      Security ID:                  DOMAIN\user
      Account Name:                  DOMAIN\user
      Account Domain:                  DOMAIN
      Fully Qualified Account Name:      DOMAIN\user

Client Machine:
      Security ID:                  NULL SID
      Account Name:                  -
      Fully Qualified Account Name:      -
      OS-Version:                  -
      Called Station Identifier:            C0-62-6B-C4-60-50
      Calling Station Identifier:            20-10-7A-06-86-7F

      NAS IPv4 Address:  
      NAS IPv6 Address:            -
      NAS Identifier:                  -
      NAS Port-Type:                  Wireless - IEEE 802.11
      NAS Port:                  0

RADIUS Client:
      Client Friendly Name:            AP02
      Client IP Address:        

Authentication Details:
      Connection Request Policy Name:      Secure Wireless Connections
      Network Policy Name:            -
      Authentication Provider:            Windows
      Authentication Server:            DC01.DOMAIN.COM
      Authentication Type:            EAP
      EAP Type:                  -
      Account Session Identifier:            -
      Logging Results:                  Accounting information was written to the SQL data store.
      Reason Code:                  48
      Reason:                        The connection request did not match any configured network policy.

Event Xml:
<Event xmlns="">
    <Provider Name="Microsoft-Windows-Security-Auditing" Guid="{54849625-5478-4994-A5BA-3E3B0328C30D}" />
    <TimeCreated SystemTime="2013-10-18T08:51:57.068239800Z" />
    <Correlation />
    <Execution ProcessID="492" ThreadID="4588" />
    <Security />
    <Data Name="SubjectUserSid">S-1-5-21-282163076-158341743-1844936127-8457</Data>
    <Data Name="SubjectUserName">DOMAIN\user</Data>
    <Data Name="SubjectDomainName">DOMAIN</Data>
    <Data Name="FullyQualifiedSubjectUserName">DOMAIN\user</Data>
    <Data Name="SubjectMachineSID">S-1-0-0</Data>
    <Data Name="SubjectMachineName">-</Data>
    <Data Name="FullyQualifiedSubjectMachineName">-</Data>
    <Data Name="MachineInventory">-</Data>
    <Data Name="CalledStationID">C0-62-6B-C4-60-50</Data>
    <Data Name="CallingStationID">20-10-7A-06-86-7F</Data>
    <Data Name="NASIPv4Address"></Data>
    <Data Name="NASIPv6Address">-</Data>
    <Data Name="NASIdentifier">-</Data>
    <Data Name="NASPortType">Wireless - IEEE 802.11</Data>
    <Data Name="NASPort">0</Data>
    <Data Name="ClientName">AP02</Data>
    <Data Name="ClientIPAddress"></Data>
    <Data Name="ProxyPolicyName">Secure Wireless Connections</Data>
    <Data Name="NetworkPolicyName">-</Data>
    <Data Name="AuthenticationProvider">Windows</Data>
    <Data Name="AuthenticationServer">DC01.DOMAIN.COM</Data>
    <Data Name="AuthenticationType">EAP</Data>
    <Data Name="EAPType">-</Data>
    <Data Name="AccountSessionIdentifier">-</Data>
    <Data Name="ReasonCode">48</Data>
    <Data Name="Reason">The connection request did not match any configured network policy.</Data>
    <Data Name="LoggingResult">Accounting information was written to the SQL data store.</Data>

Any help would be really appreciated.
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VirastaRUC Tech Consultant Commented:

Based on your description above this what i see..

Authentication Details:
      Connection Request Policy Name:      Secure Wireless Connections
      Network Policy Name:            -
      Authentication Provider:            Windows
      Authentication Server:            DC01.DOMAIN.COM
      Authentication Type:            EAP
      EAP Type:                  -
      Account Session Identifier:            -
      Logging Results:                  Accounting information was written to the SQL data store.
      Reason Code:                  48
      Reason:    The connection request did not match any configured network policy.

going by that i came across this Technet post

The RADIUS request did not match any configured connection request policy (CRP)

Hope that helps :)
JAM-TechAuthor Commented:
Hi Virastar,

This ended up being a mixed issue of Group Policy and NAP, eventually after recreating both the GP and NAP policies I got it working.


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JAM-TechAuthor Commented:
Resolved myself.
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